DCM5614xD0H36K3yzz Datasheet by Vicor Corporation

ICE VIC'OR
DCM™ in a VIA™ Package Rev 1.0
Page 1 of 40 03/2020
Isolated Regulated DC Converter
DCM™ in a VIA™ Package
DC-DC Converter
DCM5614xD0H36K3yzz
Note: Product images may not highlight current product markings.
Features & Benefits
Isolated, regulated DC-DC converter
Up to 1300W, 46.43A continuous
96% peak efficiency
451W/in3 power density
Wide input range 180 – 400VDC
Safety Extra Low Voltage (SELV) 28V nominal output
2121VDC isolation
ZVS, ZCS high-frequency switching
Enables low-profile, high-density filtering
OV, OC, UV, short circuit and thermal protection
Fully operational current limit
Available in chassis-mount and through-hole VIA package
5.57 x 1.40 x 0.37in
[141.43 x 35.54 x 9.40mm]
PMBus® management or analog control interface
Typical Applications
Defense
Aerospace
Communications Systems
Product Description
The DCM in a VIA package (270 – 28V) is a high-power,
high-efficiency DC-DC converter, operating from a 180 – 400VDC
primary source to deliver an isolated, regulated, 28V nominal,
Safety Extra Low Voltage (SELV) secondary output. This low-profile
module, available in chassis- or PCB-mount form-factors,
incorporates a DC-DC converter, inrush protection and optional
analog or digital communication. The DCM offers low noise, fast
transient response and high efficiency and power density. The
optional secondary referenced PMBus-compatible telemetry and
control interface provides access to the DCM’s internal controller
configuration, fault monitoring and other telemetry functions.
Leveraging the thermal management and power benefits of VIA
packaging technology, the DCM module offers flexible mechanical
mounting options with low top- and bottom-side thermal
resistances. When combined with downstream regulators and PoL
current multipliers, the DCM enables power system architects to
achieve power-system solutions with outstanding performance
metrics and low total cost.
Product Ratings
VIN = 270V (180 – 400V) POUT = 1300W
VOUT = 28V (22 – 36V)
(NO LOAD) IOUT = 46.43A
Size:
5.57 x 1.40 x 0.37in
[141.43 x 35.54 x 9.40mm]
\I II \I ll VICOR
DCM™ in a VIA™ Package Rev 1.0
Page 2 of 40 03/2020
DCM5614xD0H36K3yzz
+IN +OUT
DCM in a VIA Package
ISOLATION BOUNDARY
VIN
VDDE
EN
TR
NC
NC
–IN –OUT
COUT_EXT
CIN_EXT RTR
Auxiliary
Supply Input
SW1
F1
Load
Typical Applications
DCM5614xD0H36K3yzz at point-of-load
ISOLATION BOUNDARY
Host PMBus
CLK
DATA
SGND
CLOCK
DATA
GROUND
RADDR
VIN
CIN_EXT
F1
COUT_EXT
Load
+IN +OUT
DCM in a VIA Package
VDDE
SCL
SDA
SGND
ADDR
–IN –OUT
Auxiliary
Supply Input
DCM5614xD0H36K3yzz at point-of-load, connection to PMBus®
VICDR
DCM™ in a VIA™ Package Rev 1.0
Page 3 of 40 03/2020
DCM5614xD0H36K3yzz
3
4
1
2
4
3
2
1
5
6
7
8
9
9
8
7
6
5
DCM in a VIA package - PCB Mount
TOP VIEW
TOP VIEW
DCM in a VIA package - Chassis Mount
Pin Configuration
Pin Descriptions
Power Pins
Pin Number Signal Name Type Function
1 +IN INPUT POWER Positive input power terminal
2 –IN INPUT POWER RETURN Negative input power terminal
3 +OUT OUTPUT POWER Positive output power terminal
4 –OUT OUTPUT POWER RETURN Negative output power terminal
Analog Control Signal Pins
Pin Number Signal Name Type Function
5 VDDE INPUT External power supply for internal controller
6 EN INPUT Enables and disables DCM. Needs VDDE pre-applied
7 TR INPUT Enables and disables trim functionality, adjusts output voltage when trim active
8 NC No connection
9 NC No connection
PMBus® Control Signal Pins
Pin Number Signal Name Type Function
5 VDDE INPUT External power supply for internal controller
6 SCL INPUT I2C™ Clock, PMBus compatible
7 SDA INPUT / OUTPUT I2C Data, PMBus compatible
8 SGND LOW-SIDE SIGNAL RETURN Signal ground
9 ADDR INPUT Address assignment, resistor based
VICDR
DCM™ in a VIA™ Package Rev 1.0
Page 4 of 40 03/2020
DCM5614xD0H36K3yzz
Absolute Maximum Ratings
The absolute maximum ratings below are stress ratings only. Operation at or beyond these maximum ratings can cause permanent damage to the device.
Electrical specifications do not apply when operating beyond rated operating conditions.
Parameter Comments Min Max Unit
Input Voltage (+IN to –IN) –0.5 460 V
Input Voltage Slew Rate 1 V/µs
VDDE to SGND –0.3 12 V
TR to –OUT
Analog interface models only
–0.5 3.6 V
EN to –OUT –0.5 3.6 V
SCL to SGND
PMBus® interface models only
–0.3 5.5 V
SDA to SGND –0.3 5.5 V
ADDR to SGND –0.3 3.6 V
Output Voltage (+OUT to –OUT) 60 V
Dielectric Withstand
(Input to Output)
[b] See comment below 2121 VDC
Internal Operating Temperature T-Grade –40 125 °C
Storage Temperature T-Grade –40 125 °C
Case Temperature (ºC)
Maximum Output Power (W)
200
800
600
400
0
1000
1200
1400
10 20 30 40 50 60 70 80 90 100 110
Non-Pin-Side Surface at Temperature
Pin-Side and Non-Pin-Side Surfaces at Temperature
Output Current (A)
Output Voltage (V)
20
35
30
25
15
40
510152025 30 35 40 45 50
Low Trim Nominal Trim High Trim
Figure 1 — Thermal specified operating area: max output power vs.
case temp, module at minimum full load efficiency
Figure 2 — Electrical specified operating area
[b] The absolute maximum rating listed above for Dielectric withstand (input to output) refers to the VIA package. The internal safety approved isolating
component (ChiP™) provides reinforced insulation (4242V) from the input to output. However, the VIA package itself can only be tested at a basic isolation
value (2121V).
Part Ordering Information
Part Number Package Type Product Grade Option Field
DCM5614VD0H36K3T01 V = Chassis VIA
T = –40 to 100°C [a]
01 = Chassis/Analog
DCM5614VD0H36K3T02 02 = Chassis/PMBus®
DCM5614BD0H36K3T05
B = Board VIA
05 = Short Pin/Analog
DCM5614BD0H36K3T06 06 = Short Pin/PMBus
DCM5614BD0H36K3T09 09 = Long Pin/Analog
DCM5614BD0H36K3T10 10 = Long Pin/PMBus
[a] High-temperature power de-rating may apply; see Figure 1, specified thermal operating area.
VICDR
DCM™ in a VIA™ Package Rev 1.0
Page 5 of 40 03/2020
DCM5614xD0H36K3yzz
Electrical Specifications
Specifications apply over all line and load conditions, internal temperature TINT = 25°C, unless otherwise noted. Boldface specifications apply over the
temperature range specified by the product grade.
Attribute Symbol Conditions / Notes Min Typ Max Unit
Power Input Specifications
Input Voltage Range VIN Continuous operation 180 270 400 V
Inrush Current (Peak) IINRP With maximum COUT-EXT, full resistive load 12 A
Input Capacitance (Internal) CIN-INT Effective value at nominal input voltage 1.2 µF
Input Capacitance (Internal) ESR RCIN-INT At 1MHz 0.86
Input Voltage
Initialization Threshold VIN-INIT Threshold to start tINIT delay 100 V
No-Load Specifications
Input Power – Disabled PQ
Nominal line, see Figure 3 1.6 1.8 W
Worst case line, see Figure 3 2.4
Input Power – Enabled with
No Load PNL
Nominal line, see Figure 4 13 22 W
Worst case line, see Figure 4 27
VICDR
DCM™ in a VIA™ Package Rev 1.0
Page 6 of 40 03/2020
DCM5614xD0H36K3yzz
Electrical Specifications (Cont.)
Specifications apply over all line and load conditions, internal temperature TINT = 25°C, unless otherwise noted. Boldface specifications apply over the
temperature range specified by the product grade.
Attribute Symbol Conditions / Notes Min Typ Max Unit
Power Output Specifications
Output Voltage Set Point VOUT-NOM VIN = 270V, nominal trim, at no load 27.72 28 28.28 V
Rated Output Voltage Trim Range VOUT-TRIMMING
Trim range at no load;
Specifies the low, nominal and high trim conditions 22 28 36 V
Output Voltage Accuracy %VOUT-ACCURACY
The total output voltage set-point accuracy from the
calculated ideal VOUT based on load and trim;
Applies over all line, load and trim conditions
–2 2 %
Rated Output Power POUT Continuous, VOUT ≥ 28.0V 1300 W
Rated Output Current IOUT Continuous, VOUT ≤ 28.0V 46.43 A
Efficiency η
Full load, nominal line, nominal trim 92.7 93.7
%Full load, over line and temperature, nominal trim 90.8
50% load, over rated line, temperature and trim 89.5
Output Voltage Ripple VOUT-PP
VIN = 270V, VOUT = 28V, IOUT = 46.43A,
COUT-EXT = 0μF, 20MHz BW 70 mV
Switching Frequency,
Input Stage FRPL-IN
Nominal line, nominal trim, full rated load,
TCASE = 25°C 0.64
MHz
Over all line, load, trim, exclusive of
burst-mode operation 0.3 0.7
Switching Frequency,
Output Stage FRPL-OUT Over all line, load and trim 0.9 0.95 0.99
Output Capacitance (Internal) COUT-INT Effective value at nominal output voltage 56.7 µF
Output Capacitance (Internal) ESR RCOUT-INT At 1MHz 0.18
Rated Output Capacitance
(External) COUT-EXT
All line, 22V ≤ VOUT ≤ 28V, no load;
Excessive capacitance may drive module into fault
protection; see Figure 16.
0.75 F
Equivalent Output Resistance ROUT
VIN = 270V, nominal trim, at full load, TCASE = –40°C 10 18 28
VIN = 270V, nominal trim, at full load, TCASE = 25°C 12 20 30
VIN = 270V, nominal trim, at full load, TCASE = 75°C 12 25 32
Initialization Delay tINIT See state diagram 7 ms
Output Turn-On Delay tON
From rising edge EN or acknowledgement of
OPERATION command with VIN pre-applied;
See timing diagram
25 ms
Output Turn-Off Delay tOFF
From falling edge EN or acknowledgement of
OPERATION command. See timing diagram. 1 ms
Soft-Start Ramp Time tSS
At full rated resistive load, COUT-EXT = 0µF 200 ms
At full rated load and COUT-EXT 1000
Output Current at Start Up IOUT-START Max load current at start up 46.43 A
Monotonic Soft-Start
Threshold Voltage VOUT-MONOTONIC
Output voltage rise becomes monotonic with 10% of
preload once it crosses VOUT-MONOTONIC
4 V
Minimum Required
Disabled Duration tOFF-MIN
Refers to the minimum time a module must be in the
disabled state before it will attempt to start via EN or
OPERATION command
300 ms
Minimum Required Disabled
Duration for Predictable Restart tOFF-MONOTONIC
Refers to the minimum time a module must be
in the disabled state before it is guaranteed to
exhibit monotonic soft start and have predictable
start-up timing
2.5 s
Voltage Deviation (Transient) %VOUT-TRANS No COUT-EXT (10 90% load step),
excluding load line
< 6 %
Settling Time tSETTLE 0.5 ms
VICDR
DCM™ in a VIA™ Package Rev 1.0
Page 7 of 40 03/2020
DCM5614xD0H36K3yzz
Electrical Specifications (Cont.)
Specifications apply over all line and load conditions, internal temperature TINT = 25°C, unless otherwise noted. Boldface specifications apply over the
temperature range specified by the product grade.
Attribute Symbol Conditions / Notes Min Typ Max Unit
Powertrain Protections
Input Undervoltage
Recovery Threshold VIN-UVLO+ 162 175 V
Input Undervoltage
Lockout Threshold VIN-UVLO– 146.9 153.4 160 V
Input Overvoltage
Lockout Threshold VIN-OVLO+ 425 430 V
Input Overvoltage
Recovery Threshold VIN-OVLO– 400 418 V
Output Overvoltage
Lockout Threshold VOUT-OVP+ 40.26 41.85 V
Output Overvoltage
Recovery Threshold VOUT-OVP– 37.75 39.44 V
Minimum Current Limited VOUT VOUT-UVP 12 V
Overtemperature
Shut-Down Threshold TINT-OTP Internal temperature 125 °C
Power Limit PLIM 1300 W
VIN Overvoltage to Cessation of
Powertrain Switching tOVLO-SW Independent of fault logic 2 us
VIN Overvoltage Response Time tOVLO Fault logic only 50 ms
VIN Undervoltage Response Time tUVLO 400 us
Short Circuit Response Time tSC 400 us
Fault Recovery Time tFAULT Powertrain enabled, operational state 200 ms
Temperature Fault Recovery Time tOTP-FAULT Powertrain enabled, operational state 400 ms
Overcurrent Recovery Time tCL-FAULT Powertrain enabled, operational state 300 ms
Output Overcurrent
Shut-Down Threshold IOUT-CL Of rated IOUT max 119 %
Output Current Limit IOUT-CLCC
Analog interface models. Of rated IOUT max. Fully
operational current limit, for nominal trim and below. 105 %
Configurable Output
Current Limit Range
(PMBus® interface models)
IOUT-CLCC-RANGE
PMBus interface models. Fully operational current
limit, for nominal trim and below. Current limit
set point configurable by PMBus command
MFR_CONSTANT_CURRENT (E8h).
0 105 %
DCM™ in a VIA™ Package Rev 1.0
Page 8 of 40 03/2020
DCM5614xD0H36K3yzz
Enable: EN
The EN pin enables and disables the DCM; when held low, the unit will be disabled.
The EN pin is activated only if VDDE is pre-applied before VIN is applied. Otherwise, EN is inactive and will be ignored until VIN is removed and reapplied.
The EN pin is referred to the –OUT of the converter and isolated from the primary side.
Signal Type State Attribute Symbol Conditions / Notes Min Typ Max Unit
Digital Input Any
EN Enable Threshold VENABLE-EN 2.31 V
EN Disable Threshold VENABLE-DIS Needs VDDE pre-applied 0.99 V
Internally Generated VCC VCC 3.23 3.3 3.37 V
EN Internal
Pull-Up Resistance to VCC
RENABLE-INT 9.9 10 10.1
Trim: TR
The TR pin enables and disables trim functionality when VIN is initially applied to the DCM converter. When VIN first crosses VIN-UVLO+, the voltage on TR
determines whether or not trim is active.
If TR is not floating at power up and has a voltage less than TR trim enable threshold, trim is active.
The TR pin has an internal pull-up to VCC and is referenced to the –OUT pin of the converter.
VTRIM-RANGE represents the trim pin functional limits only. Module performance is guaranteed within rated output voltage trim range.
VOUT = 20 + 20.625·(VTRIM/VCC) where VTRIM is the voltage present on the TR pin.
Signal Type State Attribute Symbol Conditions / Notes Min Typ Max Unit
Digital Input Start Up
TR Trim Disable Threshold VTRIM-DIS
Trim disabled when TR above this
threshold at power up 3.20 V
TR Trim Enable Threshold VTRIM-EN
Trim enabled when TR below
this threshold 3.10 V
Analog Input
Operational
with
Trim Enabled
Internally Generated VCC VCC 3.23 3.3 3.37 V
TR Pin Functional Range VTRIM-RANGE Functional limits only 0 2.85 V
TR Internal
Pull-Up Resistance to VCC
RTRIM_INT 9.9 10 10.1
VDDE
VDDE powers the internal controller.
VDDE needs to be pre-applied before VIN in order to activate EN functionalities.
If not pre-applied, VDDE is derived from VOUT; however, in this case, the enable function is not activated (the unit is always enabled and can be disabled
only by removing VIN).
Signal Type State Attribute Symbol Conditions / Notes Min Typ Max Unit
Power Input Regular
Operation
Power Input
for Internal Controller VVDDE 4 5 10 V
VDDE Current Consumption IVDDE 35 50 mA
Analog Control Signal Characteristics
Specifications apply over all line, trim and load conditions, internal temperature TINT = 25°C, unless otherwise noted. Boldface specifications apply over the
temperature range specified by the product grade.
Please note: for chassis mount models, Vicor part number 42550 will be needed for applications requiring the use of the signal pins. Signal cable 42550 is
rated for up to 5 insertions and extractions. To avoid unnecessary stress on the connector, the cable should be appropriately strain relieved.
DCM™ in a VIA™ Package Rev 1.0
Page 9 of 40 03/2020
DCM5614xD0H36K3yzz
PMBus® Reported Characteristics
Specifications apply over all line and load conditions, internal temperature TINT = 25°C, unless otherwise noted. Boldface specifications apply over the
temperature range.
Monitored Telemetry
Attribute PMBus Read Command Accuracy
(Rated Range)
Functional
Reporting Range
Update
Rate Reported Units
Input Voltage (88h) READ_VIN ±2% (LL – HL) 130 to 450V 200µs VACTUAL = VREPORTED x 10–1
Output Voltage (8Bh) READ_VOUT ±2% (LL – HL) 12 to 41V 200µs VACTUAL = VREPORTED x 10–1
Output Current (8Ch) READ_IOUT ±20% (10 – 25% of FL)
±5% (25 – 119% of FL) 0 to 55.3A 200µs IACTUAL = IREPORTED x 10–2
Temperature (8Dh) READ_TEMPERATURE_1 ±7°C (Full Range) –55 to 130°C 400ms TACTUAL = TREPORTED
Variable Parameters
Variables can be written only with VIN > VIN_UVLO+
Attribute PMBus Command Conditions / Notes Accuracy
(Rated Range)
Functional
Reporting
Range
Default
Value
Output Voltage Trim (21h) VOUT_COMMAND ±2% (Full Range) 22 – 36V 28V
Constant-Current
Threshold (E8h) MFR_CONSTANT_CURRENT
Applied values greater than 105%
disable constant current limit
operation and command will return
a value of 130%
±20% (0 – 25% of FL)
±5% (25 – 105% of FL)
0 – 105%
130% 105%
[COR
DCM™ in a VIA™ Package Rev 1.0
Page 10 of 40 03/2020
DCM5614xD0H36K3yzz
PMBus® Control Signal Characteristics
Specifications apply over all line, trim and load conditions, internal temperature TINT = 25°C, unless otherwise noted. Boldface specifications apply over the
temperature range specified by the product grade.
Please note: for chassis mount models, Vicor part number 42550 will be needed for applications requiring the use of the signal pins. Signal cable 42550 is
rated for up to 5 insertions and extractions. To avoid unnecessary stress on the connector, the cable should be appropriately strain relieved.
VDDE
VDDE powers the internal controller.
VDDE needs to be pre-applied before VIN in order to activate OPERATION command functionalities
If not pre-applied, VDDE is derived from VOUT; however, in this case, the OPERATION command function is not activated (the unit is always enabled and
can be disabled only by removing VIN).
Signal Type State Attribute Symbol Conditions / Notes Min Typ Max Unit
Power Input
Any
Power Input
for Internal Controller VVDDE 4 5 10 V
VDDE Current Consumption IVDDE 35 50 mA
Start Up Turn-On Time tVDDE-ON From VVDDE-MIN to PMBus active 1.5 ms
Serial Address (PMBus Address): ADDR
This pin programs the address using a resistor between ADDR pin and signal ground.
The address is sampled during start up and is stored until power is reset. This pin programs only a fixed and persistent address.
This pin has an internal 10kΩ pull-up resistor to 3.3V VCC.
16 addresses are available. The range of each address nominally 206.25mV (total range for all 16 addresses is 0 – 3.3V).
Signal Type State Attribute Symbol Conditions / Notes Min Typ Max Unit
Multi-Level
Input
Regular
Operation
ADDR Input Voltage VSADDR 0 3.3 V
ADDR Leakage Current ISADDR Leakage current 1 µA
Start Up ADDR Registration Time tSADDR From VVDDE_MIN 1 ms
Signal Ground: SGND
All PMBus interface signals (SCL, SDA, ADDR) are referenced to SGND pin.
SGND pin also serves as return pin (ground pin) for VDDE.
SGND pin and low-voltage-side power-return terminal (–OUT) are common.
To avoid noise interference, keep SGND signal separated from –OUT in electrical design.
DCM™ in a VIA™ Package Rev 1.0
Page 11 of 40 03/2020
DCM5614xD0H36K3yzz
PMBus® Control Signal Characteristics (Cont.)
Specifications apply over all line, trim and load conditions, internal temperature TINT = 25°C, unless otherwise noted. Boldface specifications apply over the
temperature range specified by the product grade.
Please note: for chassis mount models, Vicor part number 42550 will be needed for applications requiring the use of the signal pins. Signal cable 42550 is
rated for up to 5 insertions and extractions. To avoid unnecessary stress on the connector, the cable should be appropriately strain relieved.
Serial Clock Input (PMBus Clock) and Serial Data (PMBus Data): SCL, SDA
High-power SMBus specification physical layer compatible. Note that optional SMBALERT# is signal not supported.
PMBus command compatible.
Signal Type State Attribute Symbol Conditions / Notes Min Typ Max Unit
Digital
Input / Output
Regular
Operation
Electrical Parameters
Input Voltage Threshold
VIH 2.3 V
VIL 1 V
Output Voltage Threshold
VOH 2.8 V
VOL 0.5 V
Leakage Current ILEAK-PIN Unpowered device –10 10 µA
Signal Sink Current ILOAD VOL = 0.4V 4 mA
Signal Capacitive Load ClTotal capacitive load of one pin 10 pF
Signal Noise Immunity VNOISE-PP 10 – 100MHz 300 mV
Timing Parameters
Operating Frequency FSMB Idle state = 0Hz 10 400 kHz
Free Time Between Stop and
Start Condition tBUF 1.3 µs
Hold Time After Start or
Repeated Start Condition tHD:STA
First clock is generated after
this hold time 0.6 µs
Repeat Start Condition
Set-Up Time tSU:STA 0.6 µs
Stop Condition Set-Up Time tSU:STO 0.6 µs
Data Hold Time tHD:DAT 300 ns
Data Set-Up Time tSU:DAT 100 ns
Clock Low Time-Out tTIMEOUT 25 35 ms
Clock Low Period tLOW 1.3 µs
Clock High Period tHIGH 0.6 50 µs
Cumulative Clock Low
Extend Time tLOW:SEXT 25 ms
Clock or Data Fall Time tF20 300 ns
Clock or data rise time tR20 300 ns
SCL
SDA
SSP
P
VIH
VIL
VIH
VIL
tBUF
tHD,STA
tLOW tR
tHD,DAT
tHIGH
tF
tSU,DAT tSU,STA tSU,STO
VICOR
DCM™ in a VIA™ Package Rev 1.0
Page 12 of 40 03/2020
DCM5614xD0H36K3yzz
Input
Output
1
Input Power On
– Trim Inactive
2
Ramp to
Full Load
3
TR
Ignored
4
EN
Low
5
EN
High
6
Input
OVLO
7
Input
UVLO
8
Input
Returned
to Zero
VOUT
ILOAD
VIN
EN
TR
VOUT-NOM
VTR-DIS
tMIN_OFF
tINIT tON tSS
tOFF
tSS tSS tSS
tOFF
tOVLO tUVLO
tON
VIN-UVLO+/–
VIN-INIT
VIN-OVLO+/–
VOUT-UVP
IOUT
FULL LOAD
Timing Diagrams – Analog Interface Version
Module inputs are shown in blue; module outputs are shown in brown. Timing diagrams assume VDDE pre-applied. Without VDDE pre-applied, EN is ignored,
EN and TR will go high after VOUT. All other behaviors (OVLO, UVLO, OVP, etc.) will remain the same.
VICOR
DCM™ in a VIA™ Package Rev 1.0
Page 13 of 40 03/2020
DCM5614xD0H36K3yzz
VOUT
IOUT
VIN
EN
TR
Input
Output
9
Input Power On
– Trim active
10
VOUT
based on
VTR
11
Load dump
and reverse
current
12
VOUT OVP
13
Current Limit
with Resistive
Load
14
Resistive
Load with
decreasing R
15
O
16
Aborted soft start
into overload
verloadinduced
OutputUVP
tFAULT
IOUT-CLCC
RLOAD
tSS-MAX
tINIT tON tSS
VOUT-OVP
VOUT-NOM
VTR = Nom
VTR-EN
VIN-INIT
VIN-UVLO+/–
VIN-OVLO+/–
VOUT-UVP
IOUT
FULL LOAD
tSS tINIT tON tSS
tFAULT
Timing Diagrams – Analog Interface Version (Cont.)
Module inputs are shown in blue; module outputs are shown in brown. Timing diagrams assume VDDE pre-applied. Without VDDE pre-applied, EN is ignored,
EN and TR will go high after VOUT. All other behaviors (OVLO, UVLO, OVP, etc.) will remain the same.
: /3\ \§ \= VICOR
DCM™ in a VIA™ Package Rev 1.0
Page 14 of 40 03/2020
DCM5614xD0H36K3yzz
Application Characteristics
Temperature controlled via non-pin-side cold plate, unless otherwise noted. See associated figures for general trend data.
Input Voltage (V)
Input Power (W)
0.3
1.2
0.9
0.6
0
1.5
1.8
2.1
2.4
2.7
180 200 220 240 260 280 300 320340 360 380 400
–40°CTCASE: 25°C 75°C
Input Voltage (V)
Power Dissipation (W)
2
8
6
4
0
10
12
14
16
18
20
180 200 220 240 260 280 300 320340 360 380 400
–40°CTPIN_SIDE_SURFACE_CASE: 25°C 75°C
Input Voltage (V)
Efficiency (%)
91
94
93
92
90
95
96
97
180 200 220 240 260 280 300 320340 360 380 400
–40°CTCASE: 25°C 75°C
Figure 3 — Disabled power dissipation vs. VIN Figure 4 — No-load power dissipation vs. VIN at nominal trim
Figure 5 — Full-load efficiency vs. VIN at low trim
Input Voltage (V)
Efficiency (%)
91
94
93
92
90
95
96
97
180 200 220 240 260 280 300 320340 360 380 400
–40°CTCASE: 25°C 75°C
Figure 7 — Full-load efficiency vs. VIN at high trim
Input Voltage (V)
Efficiency (%)
91
94
93
92
90
95
96
97
180 200 220 240 260 280 300 320340 360 380 400
–40°CTCASE: 25°C 75°C
Figure 6 — Full-load efficiency vs. VIN at nominal trim
\ \\ \ \ \\ ‘i\ \\ VICOR
DCM™ in a VIA™ Package Rev 1.0
Page 15 of 40 03/2020
DCM5614xD0H36K3yzz
Load Current (A)
Efficiency (%)
84
90
88
86
82
92
94
96
0 4.6 9.3 13.9 18.6 23.2 27.9 32.5 37.1 41.8 46.4
180VVIN: 270V 400V
Figure 8 — Efficiency vs. load at TCASE = –40°C, nominal trim
Load Current (A)
Power Dissipation (W)
20
80
60
40
0
100
120
140
0 4.6 9.3 13.9 18.6 23.2 27.9 32.5 37.1 41.8 46.4
180VVIN: 270V 400V
Figure 13 — Power dissipation vs. load at TCASE = 75°C, nominal trim
Load Current (A)
Efficiency (%)
84
90
88
86
82
92
94
96
0 4.6 9.3 13.9 18.6 23.2 27.9 32.5 37.1 41.8 46.4
180VVIN: 270V 400V
Figure 12 — Efficiency vs. load at TCASE = 75°C, nominal trim
Load Current (A)
Power Dissipation (W)
20
80
60
40
0
100
120
140
0 4.6 9.3 13.9 18.6 23.2 27.9 32.5 37.1 41.8 46.4
180VVIN: 270V 400V
Load Current (A)
Power Dissipation (W)
20
80
60
40
0
100
120
140
0 4.6 9.3 13.9 18.6 23.2 27.9 32.5 37.1 41.8 46.4
180VVIN: 270V 400V
Figure 9 — Power dissipation vs. load at TCASE = –40°C, nominal trim
Figure 11 — Power dissipation vs. load at TCASE = 25°C, nominal trim
Load Current (A)
Efficiency (%)
84
90
88
86
82
92
94
96
0 4.6 9.3 13.9 18.6 23.2 27.9 32.5 37.1 41.8 46.4
180VVIN: 270V 400V
Figure 10 — Efficiency vs. load at TCASE = 25°C, nominal trim
Application Characteristics (Cont.)
Temperature controlled via non-pin-side cold plate, unless otherwise noted. See associated figures for general trend data.
VICOR
DCM™ in a VIA™ Package Rev 1.0
Page 16 of 40 03/2020
DCM5614xD0H36K3yzz
Input Voltage (V)
Input Capacitance (µF)
0.3
1.2
0.9
0.6
0
1.5
1.8
2.1
2.4
2.7
3.0
040 12080 160 200 240 280 320360 400
Figure 15 — Effective internal input capacitance vs. VIN
Output Voltage Trim Set Point (V)
Output Capacitance
(%Rated C
OUT_EXT
)
0
20
40
60
80
100
120
20 22 24 26 28 30 32 34 36 38
Figure 17 — Input voltage start up, VIN = 270V, VOUT = 28V,
COUT_ EX T = 0F, RLOAD = 0.6Ω
Figure 16 — Maximum rated output capacitance COUT-EXT at start up,
over all line, no load
CH1 VIN: 200V/div CH3 IIN: 5A/div Timebase: 100ms/div
CH2 VOUT: 20V/div CH4 IOUT: 50A/div
CH1
CH3
CH2
CH4
Figure 18 — Input voltage start up, VIN = 270V, VOUT = 28V,
COUT_ EX T = 0.5F, RLOAD = 0.6Ω
Figure 19 — Start up from EN, VIN = 270V, VOUT = 28V, COUT_EXT = 0F,
RLOAD = 0.6Ω; analog-interface models only
Application Characteristics (Cont.)
Temperature controlled via non-pin-side cold plate, unless otherwise noted. See associated figures for general trend data.
Case Temperature (°C)
Output Resistance (mΩ)
17
21
20
18
19
16
22
23
–55 –40 –25 –10 520 35 50 65 80
180VVIN: 270V 400V
Figure 14 — ROUT vs. temperature at nominal trim
CH1 VIN: 200V/div CH3 IIN: 5A/div Timebase: 200ms/div
CH2 VOUT: 20V/div CH4 IOUT: 50A/div
CH1
CH3
CH2
CH4
CH1 EN: 2V/div CH3 IIN: 5A/div Timebase: 100ms/div
CH2 VOUT: 20V/div CH4 IOUT: 50A/div
CH1
CH3
CH2
CH4
/fl\A“WV“MVMMNWWMWWMNMWMNMMWNWMMM —/ ALE VIC'OR
DCM™ in a VIA™ Package Rev 1.0
Page 17 of 40 03/2020
DCM5614xD0H36K3yzz
Figure 22 — 100 – 10% load transient response, VIN = 270V,
nominal trim, COUT_EXT = 0µF
Figure 21 — 10 – 100% load transient response, VIN = 270V,
nominal trim, COUT_EXT = 0µF
Application Characteristics (Cont.)
Temperature controlled via non-pin-side cold plate, unless otherwise noted. See associated figures for general trend data.
CH1 VOUT: 1V/div Timebase: 100µs/div
CH2 IOUT: 20A/div
CH1 VOUT: 1V/div Timebase: 100µs/div
CH2 IOUT: 20A/div
CH2
CH2
Figure 20 — Output voltage ripple, VIN = 270V, VOUT = 28V,
COUT_ EX T = 0F, RLOAD = 0.6Ω
CH1 VOUT: 20mV/div Timebase: 500ns/div
CH1 CH1
CH1
VICOR
DCM™ in a VIA™ Package Rev 1.0
Page 18 of 40 03/2020
DCM5614xD0H36K3yzz
General Characteristics
Specifications apply over all line and load conditions, internal temperature TINT = 25°C, unless otherwise noted. Boldface specifications apply over the
temperature range specified by the product grade.
Attribute Symbol Conditions / Notes Min Typ Max Unit
Mechanical
[c]
Length L 141.18 [5.56] 141.43 [5.57] 141.68 [5.58] mm [in]
Width W 35.29 [1.39] 35.54 [1.40] 35.79 [1.41] mm [in]
Height H 9.02 [0.355] 9.40 [0.37] 9.78 [0.385] mm [in]
Volume Vol Without heat sink 47.33 [2.89] cm3 [in3]
Weight W 215 [7.58] g [oz]
Pin Material C145 Copper
Underplate Low-stress ductile Nickel 50 100 µin
Pin Finish (Gold)
Palladium 0.8 6
µin
Soft Gold 0.12 2
Pin Finish (Tin) Whisker-resistant-matte Tin 200 400 µin
Thermal
Operating Internal Temperature
[d] TINT T-Grade –40 125 °C
Thermal Resistance Pin Side θINT_PIN_SIDE
Estimated thermal resistance to
maximum temperature internal
component from isothermal pin/
terminal-side housing
0.97 °C/W
Thermal Resistance Housing θHOU
Estimated thermal resistance of thermal
coupling between the pin-side and
non-pin-side case surfaces
0.42 °C/W
Thermal Resistance Non-Pin Side θINT_NON_PIN_SIDE
Estimated thermal resistance to
maximum temperature internal
component from isothermal non-pin/
non-terminal housing
0.62 °C/W
Assembly
Storage Temperature TST T-Grade –40 125 °C
ESD Rating
HBM Method per Human Body Model Test
ESDA/JEDEC JDS-001-2012 CLASS 2
CDM Charged Device Model JESD22-C101E CLASS 2
Soldering
[e]
Peak Temperature Top Case For further information, please contact
factory applications 130 °C
[c] Product appearance may change over time depending upon environmental exposure. This change has no impact on product performance.
[d] Temperature refers to the internal operation of the DCM. For maximum case temperature, please refer to Figure 1.
[e] Product is not intended for reflow solder attach.
VICOR
DCM™ in a VIA™ Package Rev 1.0
Page 19 of 40 03/2020
DCM5614xD0H36K3yzz
General Characteristics (Cont.)
Specifications apply over all line and load conditions, internal temperature TINT = 25°C, unless otherwise noted. Boldface specifications apply over the
temperature range specified by the product grade.
Attribute Symbol Conditions / Notes Min Typ Max Unit
Safety
Dielectric Withstand Test VHIPOT
IN to OUT 2121
VDC
IN to CASE 2121
OUT to CASE 707
Reliability
MTBF
MIL-HDBK-217Plus Parts Count
25°C Ground Benign, Stationary,
Indoors / Computer
0.88 MHrs
Telcordia Issue 2, Method I Case III,
25°C, Ground Benign, Controlled 1.85 MHrs
Agency Approvals
Agency Approvals / Standards
CE Marked for Low Voltage Directive and RoHS Recast Directive, as applicable
VIC'OR
DCM™ in a VIA™ Package Rev 1.0
Page 20 of 40 03/2020
DCM5614xD0H36K3yzz
Pin Functions
Power Terminals
+IN, –IN
Input power pins.
+OUT, –OUT
Output power pins. –OUT also serves as the reference for the
secondary-referenced control pins on analog interface models.
Analog Signal Control Pins
EN (Enable)
This pin enables and disables the DCM converter; when held low
the unit will be disabled. It is referenced to the –OUT pin of the
converter. EN is active only if VDDE is pre-applied before VIN is
applied. Otherwise, EN is inactive and will be ignored until VIN is
removed and reapplied.
Output enable: When EN is allowed to pull up above the enable
threshold, the module will be enabled. If leaving EN floating, it is
pulled up to VCC and the module will be enabled.
Output disable: EN may be pulled down externally in order to
disable the module.
EN is an input only, it does not pull low in the event of a fault.
TR (Trim)
The TR pin is used to select the trim mode and to trim the
output voltage of the DCM converter. The TR pin has an internal
pull-up to VCC.
The DCM will latch trim behavior at application of VIN (once VIN
exceeds VIN-UVLO+), and persist in that same behavior until loss of
input voltage.
At application of VIN, if TR is sampled at a value above VTRIM-DIS,
the module will latch in a non-trim mode, and will ignore the TR
input for as long as VIN is present.
At application of VIN, if TR is sampled at a value below VTRIM-EN,
the TR will serve as an input to control the real time output
voltage. It will persist in this behavior until VIN is no
longer present.
If trim is active when the DCM is operating, the TR pin provides
dynamic trim control at a typical 0.4Hz of –3dB bandwidth over the
output voltage. TR also decreases the current limit threshold when
trimming above VOUT-NOM.
PMBus® Signal Control Pins
SCL and SDA (Serial Clock and Serial Data)
I2C™ communication signal pin interface for PMBus Host clock
and data connection. SCL and SDA are not internally pulled up
to any voltage, permitting flexibility for the user in defining the
communication bus voltage. External pull-up resistors are required,
the value of which should be considered dependent on the SCL
and SDA signal routing impedance characteristics.
ADDR (Address)
This pin programs the module with a fixed and persistent PMBus
address using a resistor between the ADDR pin and SGND. The
address pin has an internal 10kΩ pull-up resistor to VCC. The
address is sampled by the DCM’s internal microcontroller at
initial turn on and held until power is removed. See the Device
Address table in the PMBus Interface section for recommended
values of RADDR.
Please note: For chassis mount models, Vicor part number 42550 will be
needed for applications requiring the use of signal pins.
Design Guidelines
Building Blocks and System Design
The DCM converter input accepts the full 180 – 400V range,
and it generates an isolated trimmable 28.0VDC output. Multiple
DCMs may be paralleled for higher power capacity via wireless
load sharing, even when they are operating off of different input
voltage supplies.
The DCM converter provides a regulated output voltage with a
load dependent, resistive droop characteristic (ROUT). The load line
enables configuration of an array of DCM converters that manage
the output load with no share signal bus among modules. When
multiple DCM5614 modules are connected in an array, they will
inherently share the load current according to the equivalent
impedance divider that the system implements from the power
source to the point-of-load. Ensuring equal current sharing among
modules requires that DCM array impedances be matched.
Downstream regulators may be used to provide tighter voltage
regulation if required.
The DCM5614xD0H36K3yzz may be used in standalone
applications where the output power requirements are up to
1300W. However, it is easily deployed as arrays of modules to
increase power handling capacity. Arrays of up to four units have
been qualified for 5.2kW capacity. Application of DCM converters
in an array requires no de-rating of the maximum available power
versus what is specified for a single module. To ensure reliable
system recovery in the event of a fault of one or more units in an
array, ORing of the DCM outputs is needed. Note that the addition
of ORing circuitry can influence current sharing among modules.
Soft Start
When the DCM starts, it will go through a soft start. The soft-start
routine ramps the output voltage by modulating the internal error
amplifier reference. This causes the output voltage to approximate
a piecewise linear ramp. The output ramp finishes when the
voltage reaches either the nominal output voltage or the trimmed
output voltage as set by either the TR pin (analog interface
modules) or the VOUT_COMMAND (21h – PMBus interface
modules). The DCM is capable of supporting full rated output
current during start up and will enter constant-current operation to
support charging highly capacitive loads (see Figure 16).
Trim Mode and Output Trim Control
(Analog Interface Modules)
When the input voltage is initially applied to a DCM, and after
tINIT elapses, the trim pin voltage VTR is sampled. The TR pin has
an internal pull-up resistor to VCC, so unless external circuitry
pulls the pin voltage lower, it will pull up to VCC. If the initially
sampled trim pin voltage is higher than VTRIM-DIS, then the DCM
will disable trimming as long as VIN remains applied. In this case, for
all subsequent operation, the output voltage will be programmed
to the nominal set point. This minimizes the support components
required for applications that only require the nominal rated VOUT
and also provides the best output set-point accuracy as there are
no additional errors introduced from external trim components.
If, at initial application of VIN, the TR pin voltage is prevented from
exceeding VTRIM-EN, then the DCM will activate trim mode. The trim
mode will remain active for as long as VIN is applied.
VIC'OR
DCM™ in a VIA™ Package Rev 1.0
Page 21 of 40 03/2020
DCM5614xD0H36K3yzz
VOUT set point at no load can be calculated using the
equation below:
Note: the trim mode is not changed when a DCM recovers from any fault
condition or being disabled.
Module performance is guaranteed through output voltage trim
range VOUT-TRIMMING. If VOUT is trimmed above this range, then
certain combinations of line and load transient conditions may
trigger the output OVP.
Output Current Limit
The DCM features a fully operational firmware-controlled current
limit that effectively keeps the module operating inside the
Safe Operating Area (SOA) for all valid trim and load profiles.
The current limit approximates a “brick wall” limit, where the
output current is prevented from exceeding the current limit
threshold by reducing the output voltage via the internal error
amplifier reference.
Sustained operation in current limit is permitted and no de-rating
of output power is required. In order to preserve the SOA, when
the converter is trimmed above the nominal output voltage,
the current limit threshold is automatically reduced to limit the
available output power.
Current limit can reduce the output voltage to as little as the
UVP threshold (VOUT-UVP). Below this minimum output voltage
compliance level, further loading will cause the module to shut
down due to the output undervoltage fault protection.
Analog Interface Modules
The current limit threshold at all trim conditions is 105% of rated
output current. Note that at output voltage trim conditions higher
than 28V, the rated output current is automatically reduced to
prevent exceeding the 1300W rated output power capability of the
module. The module may enter current-limited operation during
soft start when charging large capacitive loads (see Figure 16).
PMBus® Interface Modules
The default current limit threshold at all trim conditions is 105% of
rated output current. Note that at output voltage trim conditions
higher than 28V, the rated output current is automatically reduced
to prevent exceeding the 1300W rated output power capability of
the module. The current limit threshold may be adjusted from 0 to
105% of rated current via the MFR_CONSTANT_CURRENT (E8h)
command, see PMBus Interface section beginning on page25.
This command also permits disabling the firmware-controlled
constant-current behavior such that an output overcurrent event
exceeding IOUT_CL triggers the hardware overcurrent protection and
disables the powertrain for a minimum time tCL_FAULT. The module
will periodically attempt to restart until the overcurrent condition is
removed and normal operation resumes.
The module may enter current-limited operation during soft start
when charging large capacitive loads (see Figure 16). The current
limit threshold during soft start is set according to the
MFR_CONSTANT_CURRENT (E8h). Current-limited operation
during soft start is retained (105% threshold) even if the
firmware-controlled constant-current behavior is disabled.
Line Impedance, Input Slew rate and
Input Stability Requirements
Connect a high-quality, low-noise power supply to the +IN and –IN
terminals. Additional capacitance may have to be added between
+IN and –IN to make up for impedances in the interconnect cables
as well as deficiencies in the source.
Excessive source impedance can bring about system stability
issues for a regulated DC-DC converter, and must either be
avoided or compensated. A 100µF input capacitor is the minimum
recommended in case the source impedance is insufficient to
satisfy stability requirements.
Additional information can be found in the
filter design application note.
Please refer to this input filter design tool to ensure input stability.
Ensure that the input voltage slew rate is less than 1V/µs,
otherwise a pre-charge circuit is required for the DCM input to
control the input voltage slew rate and prevent overstress to input
stage components.
Input Fuse Selection
The DCM is not internally fused in order to provide flexibility in
configuring power systems. Input line fusing is recommended at
the system level, in order to provide thermal protection in case of
catastrophic failure. The fuse shall be selected by closely matching
system requirements with the following characteristics:
Current rating (usually greater than the DCM converter’s
maximum current)
Maximum voltage rating (usually greater than the maximum
possible input voltage)
Ambient temperature
Breaking capacity per application requirements
Nominal melting I2t
Recommended fuse: Littelfuse® 487 series rated 10A.
Fault Handling
The following section describes fault conditions in which the
DCM will automatically shut down to protect the powertrain from
operation outside the prescribed safe operating area. All faults are
non-latching; the powertrain will automatically attempt to restart
once the fault condition subsides.
Input Undervoltage Fault Protection (UVLO)
The converter’s input voltage is monitored to detect an input
undervoltage condition. If the converter is not already running,
then it will ignore enable commands until the input voltage is
greater than VIN-UVLO+. If the converter is running and the input
voltage falls below VIN-UVLO–, the converter recognizes a fault
condition, the powertrain stops switching, and the output voltage
of the unit falls.
Input voltage transients which fall below UVLO for less than tUVLO
may not be detected by the fault protection logic, in which case
the converter will continue regular operation. No protection is
required in this case.
Once the UVLO fault is detected by the fault protection logic, the
converter shuts down and waits for the input voltage to rise above
VIN-UVLO+. Provided the converter is still enabled, it will then restart.
(1)VOUT-TRIMMING = 20.00 + 20.625 •
V
TR
VCC
)(
VICOR
DCM™ in a VIA™ Package Rev 1.0
Page 22 of 40 03/2020
DCM5614xD0H36K3yzz
Input Overvoltage Fault Protection (OVLO)
The converter’s input voltage is monitored to detect an input
overvoltage condition. When the input voltage is higher than
VIN-OVLO+, a fault is detected, the powertrain stops switching, and
the output voltage of the converter falls.
After an OVLO fault occurs, the converter will wait for the input
voltage to fall below VIN-OVLO–. Provided the converter is still
enabled, the powertrain will restart.
A time dependent overvoltage protection permits the module to
ride through short duration voltage surge transients. The converter
will continue to process power so long as the input voltage returns
to a level below VIN-OVLO within tOVLO.
Output Undervoltage Fault Protection (UVP)
The converter determines that an output overload or short circuit
condition exists by measuring its output voltage and the output of
the internal error amplifier. In general, whenever the powertrain is
switching and the output voltage falls below VOUT-UVP threshold, a
undervoltage fault will be registered. Once an output undervoltage
condition is detected, the powertrain immediately stops switching,
and the output voltage of the converter falls. The converter
remains disabled for a time tFAULT. Once recovered and provided the
converter is still enabled, the powertrain will restart.
Temperature Fault Protections (OTP)
The fault logic monitors the internal temperature of the converter.
If the measured temperature exceeds TINT-OTP, a temperature fault
is registered. As with the undervoltage fault protection, once
a temperature fault is registered, the powertrain immediately
stops switching, the output voltage of the converter falls, and the
converter remains disabled for at least time tOTP-FAULT. Then, the
converter waits for the internal temperature to return to below
TINT-OTP before recovering. Provided the converter is still enabled,
the DCM will restart.
Output Overvoltage Fault Protection (OVP)
The converter monitors the output voltage during each switching
cycle. If the output voltage exceeds VOUT-OVP+, the OVP fault
protection is triggered. The control logic disables the powertrain,
and the output voltage of the converter falls.
The DCM will remain disabled for at least time tFAULT. Provided the
converter is still enabled and the output voltage has fallen below
VOUT-OVP, the powertrain will restart.
Thermal Considerations
The VIA package provides effective conduction cooling from
either of the two module surfaces. Heat may be removed from
the pin-side surface, the non-pin-side surface or both. The extent
to which these two surfaces are cooled is a key component for
determining the maximum power that can be processed by a
DCM in a VIA package, as can be seen from specified thermal
operating area on Page 4. Since the VIA package has a maximum
internal temperature rating, it is necessary to estimate this internal
temperature based on a system-level thermal solution. To this
purpose, it is helpful to simplify the thermal solution into a roughly
equivalent circuit where power dissipation is modeled as a current
source, isothermal surface temperatures are represented as voltage
sources and the thermal resistances are represented as resistors.
Figure 23 shows the “thermal circuit” for the VIA package.
In this case, the internal power dissipation is PDISS, θINT_PIN_SIDE and
θINT_NON_PIN_SIDE are thermal resistance characteristics of the VIA
package and the pin-side and non-pin-side surface temperatures
are represented as TC_PIN_SIDE, and TC_NON_PIN_SIDE. It is interesting
to notice that the package itself provides a high degree of thermal
coupling between the pin-side and non-pin-side case surfaces
(represented in the model by the resistor θHOU). This feature enables
two main options regarding thermal designs:
Single-side cooling: the model of Figure 23 can be simplified
by calculating the parallel resistor network and using one
simple thermal resistance number and the internal power
dissipation curves; an example for non-pin-side cooling only is
shown in Figure 24.
In this case, θINT can be derived as following:
Double-side cooling: while this option might bring limited
advantage to the module internal components (given the surface-
to-surface coupling provided), it might be appealing in cases where
the external thermal system requires allocating power to two
different elements, like for example heatsinks with independent
airflows or a combination of chassis/air cooling.
θINT = (2)
(
θ
INT_PIN_SIDE
+ θ
HOU
)
θ
INT_NON_PIN_SIDE
θINT_PIN_SIDE + θHOU + θINT_NON_PIN_SIDE
PDISS
+
θINT
s
s
TC_NON_
PIN_SIDE
Figure 24 — Single-sided cooling thermal model
PDISS
+
s
s
+
θINT_PIN_SIDE
θINT_NON_
PIN_SIDE
θHOU
TC_PIN_SIDE
TC_NON_
PIN_SIDE
Figure 23 — Double-sided cooling thermal model
VIC'OR
DCM™ in a VIA™ Package Rev 1.0
Page 23 of 40 03/2020
DCM5614xD0H36K3yzz
Grounding Considerations
The chassis of the DCM is required to be connected to Protective
Earth when installed in the end application and must satisfy the
requirements of IEC 60950-1 for Class I products.
Dielectric Withstand
The DCM contains an internal safety approved isolating component
(ChiP™) that provides the Reinforced Insulation from Input
to Output. The isolating component is individually tested for
Reinforced Insulation from Input to Output at 4242VDC prior to the
final assembly of the DCM in a VIA package.
When the VIA package assembly is complete the Reinforced
Insulation can only be tested at Basic Insulation values as specified
in the electric strength Test Procedure noted in clause 5.2.2
of IEC 60950-1.
Test Procedure Note from IEC 60950-1
“For equipment incorporating both REINFORCED INSULATION and
lower grades of insulation, care is taken that the voltage applied
to the REINFORCED INSULATION does not overstress BASIC
INSULATION or SUPPLEMENTARY INSULATION.
Summary
The final package assembly contains basic insulation from input
to case, reinforced insulation from input to output, and functional
insulation from output to case.
The output of the DCM complies with the requirements of SELV
circuits so only functional insulation is required from the output
(SELV) to case (PE) because the case is required to be connected
to protective earth in the final installation. The construction of
the DCM in a VIA package can be summarized by describing it
as a “Class II” component installed in a “Class I” subassembly.
The reinforced insulation from input to output can only be
tested at a basic insulation value of 2121VDC on the completely
assembled VIA package.
VICOR’
DCM™ in a VIA™ Package Rev 1.0
Page 24 of 40 03/2020
DCM5614xD0H36K3yzz
System Diagram for PMBus® Interface
The controller of the DCM in a VIA package is referenced to the low-voltage-side signal ground (SGND).
The DCM in a VIA package provides the Host PMBus system with accurate telemetry monitoring and reporting, voltage and current
setpoint adjustment, in addition to corresponding status flags. The standalone DCM is periodically polled for status by the host
PMBus. Direct communication to the DCM is enabled by a page command. For example, the page (0x00) prior to a telemetry inquiry
points to the DCM controller data and page (0x01) prior to a telemetry inquiry points to the DCM parameters.
The DCM enables the PMBus compatible host interface with an operating bus speed of up to 400kHz. The DCM follows the PMBus
command structure and specification.
VDDE
SDA
SGND
SCL
ADDR
DCM in a VIA
Package SDA
SGND
SCL
5V
Host
PMBus
VICDR
DCM™ in a VIA™ Package Rev 1.0
Page 25 of 40 03/2020
DCM5614xD0H36K3yzz
PMBus® Interface
Refer to “PMBus Power System Management Protocol Specification
Revision 1.3, Part I and II” for complete PMBus specifications details
at http://pmbus.org.
Device Address
The PMBus address (ADDR Pin) should be set to one of a
predetermined sixteen possible addresses shown in the table below
using a resistor between ADDR pin and SGND pin.
The DCM accepts only a fixed and persistent address and does not
support SMBus address resolution protocol. At initial power-up, the
DCM internal microcontroller will sample the address pin voltage,
and will hold this address until device power is removed.
Reported DATA Formats
The DCM controller employs a direct data format where all reported
measurements are in Volts, Amperes, Degrees Celsius, or Seconds.
The host uses the following PMBus specification to interpret
received values metric prefixes. Note that the COEFFICIENTS
command is not supported:
Where:
X is a “real world” value in units (A, V, °C, s)
Y is a two’s complement integer received
from the internal microcontroller
m, b and R are two’s complement integers defined as follows:
Command Code m R b
VOUT_COMMAND 21h 1 2 0
READ_VIN 88h 1 1 0
READ_VOUT 8Bh 1 2 0
READ_IOUT 8Ch 1 2 0
READ_TEMPERATURE_1 8Dh 1 0 0
READ_POUT 96h 1 1 0
MFR_VIN_MIN A0h 1 1 0
MFR_VIN_MAX A1h 1 1 0
MFR_VOUT_MIN A4h 1 2 0
MFR_VOUT_MAX A5h 1 2 0
MFR_IOUT_MAX A6h 1 2 0
MFR_POUT_MAX A7h 1 1 0
MFR_POUT_MAX A7h 1 0 0
MFR_CONSTANT_CURRENT E8h 1 2 0
X =
(
Y • 10–R –b
)
(3)
1
m
)(
ID Slave
Address HEX Recommended
Resistor RADDR (Ω)
1 1010 000b 50h 487
2 1010 001b 51h 1050
3 1010 010b 52h 1870
4 1010 011b 53h 2800
5 1010 100b 54h 3920
6 1010 101b 55h 5230
7 1010 110b 56h 6810
8 1010 111b 57h 8870
9 1011 000b 58h 11300
10 1011 001b 59h 14700
11 1011 010b 5Ah 19100
12 1011 011b 5Bh 25500
13 1011 100b 5Ch 35700
14 1011 101b 5Dh 53600
15 1011 110b 5Eh 97600
16 1011 111b 5Fh 316000
VICDR
DCM™ in a VIA™ Package Rev 1.0
Page 26 of 40 03/2020
DCM5614xD0H36K3yzz
Supported Command List
Command Code Function Default Data Content Data Bytes
PAGE 00h Access stored DCM information 00h 1
OPERATION 01h Turn DCM on or off 80h 1
CLEAR_FAULTS 03h Clear all faults N/A None
CAPABILITY 19h PMBus® key capabilities set by factory 20h 1
VOUT_MODE 20h Returns the format of the output voltage data 40h 1
VOUT_COMMAND 21h Set DCM output voltage VOUT Nom 2
STATUS_BYTE 78h Summary of faults 00h 1
STATUS_WORD 79h Summary of fault conditions 00h 2
STATUS_VOUT 7Ah Output overvoltage and undervoltage fault status 00h 1
STATUS_IOUT 7Bh Overcurrent fault status 00h 1
STATUS_INPUT 7Ch Input overvoltage and undervoltage fault status 00h 1
STATUS_TEMPERATURE 7Dh Overtemperature and undertemperature fault status 00h 1
STATUS_CML 7Eh PMBus communication fault 00h 1
STATUS_MFR_SPECIFIC 80h Other DCM status indicator 00h 1
READ_VIN 88h Read input voltage FFFFh 2
READ_VOUT 8Bh Read output voltage FFFFh 2
READ_IOUT 8Ch Read output current FFFFh 2
READ_TEMPERATURE_1 8Dh Read internal controller temperature FFFFh 2
READ_POUT 96h Read output power FFFFh 2
PMBUS_REVISION 98h PMBus compatible revision 22h 1
MFR_ID 99h DCM controller ID “VI” 2
MFR_MODEL 9Ah Internal controller or DCM model Part Number 18
MFR_REVISION 9Bh Internal controller or DCM revision FW and HW revision 18
MFR_LOCATION 9Ch Internal controller or DCM factory location “AP” 2
MFR_DATE 9Dh Internal controller or DCM manufacturing date “YYWW” 4
MFR_SERIAL 9Eh Internal controller or DCM serial number Serial Number 16
MFR_VIN_MIN A0h Minimum rated input voltage Varies per DCM 2
MFR_VIN_MAX A1h Maximum rated input voltage Varies per DCM 2
MFR_VOUT_MIN A4h Minimum rated output voltage Varies per DCM 2
MFR_VOUT_MAX A5h Maximum rated output voltage Varies per DCM 2
MFR_IOUT_MAX A6h Maximum rated output current Varies per DCM 2
MFR_POUT_MAX A7h Maximum rated output power Varies per DCM 2
MFR_CONSTANT_CURRENT E8h Set DCM current limit threshold 69h 2
MFR_V_I_COMMIT_COMMAND ECh Store output voltage trim and current limit threshold in
non-volatile memory N/A None
ll |1|D|1|D|1|1|1 lulo IDIUIHIHMOIHIDIl1 IDI 0‘0 M n | —Vm ‘_IW Jflfl—‘UHLI_I 7 mu 1' 11: n 1m fluun fl \_InUrJflL—PL J L \_/V_ J, LI’Ffik «town. |°|11| 1|111|°|1| 1 | , |1|°|1|°|1|1|1|°|° |1|"|1|fl|1|1|1|1| 0 —m iU'L—JHL JF—_11_1unuflurJflL—‘uflL—‘ur _!'__TL_ 117* — _f JLP—LLJ Ll ffi , M Ll I 11.0mm VICOR
DCM™ in a VIA™ Package Rev 1.0
Page 27 of 40 03/2020
DCM5614xD0H36K3yzz
Command Structure Overview
Write Byte protocol:
The Host always initiates PMBus® communication with a START bit. All messages are terminated by the Host with a STOP bit. In a write
message, the master sends the slave device address followed by a write bit. Once the slave acknowledges, the master proceeds with the
command code and then similarly the data byte.
S Start Condition
Sr Repeated start Condition
Rd Read
Wr Write
X Indicated that field is required to have the value of x
A Acknowledge (bit may be 0 for an ACK or 1 for a NACK)
P Stop Condition
From Master to Slave
From Slave to Master
Continued next line
Read Byte protocol:
A Read message begins by first sending a Write Command, followed by a REPEATED START Bit and a slave Address. After receiving the
READ bit, the DCM controller begins transmission of the Data responding to the Command. Once the Host receives the requested Data, it
terminates the message with a NACK preceding a stop condition signifying the end of a read transfer.
Figure 25 PAGE COMMAND (00h), WRITE BYTE PROTOCOL
Slave AddressSWrACommand Code A
171181
x = 0x = 0x = 0
Data Byte PA
811
x = 0
Slave AddressSWrACommand Code A
17 11 81
x = 0x = 0x = 0
Slave AddressSr Rd AData Byte A
17 11 81
x = 1x = 0x = 1
P
1
Figure 26 ON_OFF_CONFIG COMMAND (02h), READ BYTE PROTOCOL
‘7 1| a. :1 I11 Bu—t—(mme- +——< w-="" )——(="" om="" )—+="" a!="" |1|0|1|0|1|1|1|°|="" 0="" |1|1|°|1|:|1|1|°|="" 0="" |0|1\‘|°|0|1|0|°|="" 0="" idioiuioividioioi="" 0="" \="" i»="" m="" m="" eb="" m="" m="" i="" a:="" |||||||||°|||l|||||°|="" |||||||||°|||||||||0|||||||||1|="" www="" iw‘ltjll—lfl—i’m="" sijuimiv="" i="" 7="" ‘="" u="" a="" u="" a="" u="" a="" u="" bu—hmehwhwhwhwhwhwhwh—="" 2="" el="" |||||||||0||_|l|||||°|||||||||°|i|||||||l0|||||||||°||||||||0|||1|||||°|i|||||||_|0|||||||||°|="" tum—lie="" jim—j="" 1'1="" jjj-j'="" slip“!!!="" vicdr="">
DCM™ in a VIA™ Package Rev 1.0
Page 28 of 40 03/2020
DCM5614xD0H36K3yzz
Write Word protocol:
When transmitting a word, the lowest order byte leads the highest order byte. Furthermore, when transmitting a Byte, the least significant
bit (LSB) is sent last. Refer to System Management Bus (SMBus) specification version 2.0 for more details.
Note: Extended command and Packet Error Checking Protocols are not supported.
Read Word protocol:
Write Block protocol:
Slave AddressSWrACommand Code
171181
x = 0x = 0x = 0
Data Byte Low
8
P
1
AData Byte High A
181
x = 0x = 0
A
Slave AddressSWrACommand Code
171181
x = 0x = 0x = 0
Slave AddressSr Rd AData Byte Low A
171181
x = 1x = 0x = 0
AP
1
Data Byte High A
81
x = 1
Figure 28 MFR_VIN_MIN COMMAND (A0h)_READ WORD PROTOCOL
Slave AddressSWrACommand Code
17 11 81
x = 0x = 0x = 0
AData Byte 1A
181
...
x = 0x = 0
Byte Count = N
8
A
AData Byte NA
181
...
x = 0x = 0
Data Byte 2
8...
...
P
1
Figure 29 SET_ALL_THRESHOLDS COMMAND (D5h)_WRITE BLOCK PROTOCOL
Figure 27 TON_DELAY COMMAND (60h)_WRITE WORD PROTOCOL
Bu—Hmenan—i—(mH-mHwHwHwHwHwHwH— i |||||||||0||||||_|||°| '||||||_|||0|||||||H°|_|| ||||°||_|||||||°|||||||||°||||||||_|°||l||||||_°|||||||||1| - nnmfl‘fl‘flflnflfl "" fl ’’ fl ' IL FJ;1IW W L’fl'fl'nfln‘ r: :uwau Ba-Hme om )—(»w- >—( «n )—HmH m )—< zen="" )—(-="" m="" h-="" :="" i!="" hbhbbbhblflhhbhhhhhl="" d="" mwwdwwi="" "i="" |1hihhhhhdhl1wh1m1i="" fl="" bthwdthfll="" '—\l|="" 'h'l'nhj'hj‘_wh'\uht_'if="" flmfl'_'flflfl="" '_‘lfl"flfl'l"="" h="" f_'flfl'lfl'_‘fl="" hufj'ht"="" ftf_'j'ij"_'\="" hfh‘hh'h'i="" _="" :="" iemthliuml="" :="" wijs+lu="" 25.0mm="" vicdr="">
DCM™ in a VIA™ Package Rev 1.0
Page 29 of 40 03/2020
DCM5614xD0H36K3yzz
Read Block protocol:
Write Group Command protocol:
Note that only one command per device is allowed in a group command.
Figure 30 SET_ ALL_THRESHOLDS COMMAND (D5h)_READ BLOCK PROTOCOL
Slave AddressSWrACommand Code
17 11 81
x = 0x = 0x = 0First Device First Command
A
1
x = 0
Data Byte Low
8
Data Byte High A
81
x = 0One or more Data Bytes
A...
Slave AddressSr Wr A Command Code
17 11 8 1
x = 0x = 0x = 0
Second Device Second Command
A
1
x = 0
Data Byte Low
8
Data Byte High A
8 1
x = 0One or more Data Bytes
A...
Slave AddressSr Wr A Command Code
171181
x = 0x = 0x = 0
Nth Device Nth Command
A
1
x = 0
Data Byte Low
8
Data Byte High A
81
x = 0One or more Data Bytes
AP
Figure 31 DISABLE_FAULT COMMAND (D7h)_WRITE
Slave AddressSWrACommand Code
171181
x = 0x = 0x = 0
Slave AddressSr Rd AData Byte = NA
171181
x = 1x = 0x = 0
...A
AData Byte 2A
181
...
x = 0x = 0
Data Byte 1
8...
...
AP
11
x = 1
Data Byte N
8
7a5132tn VICDR
DCM™ in a VIA™ Package Rev 1.0
Page 30 of 40 03/2020
DCM5614xD0H36K3yzz
Supported Commands Transaction Type
A direct communication to the DCM controller and a
simulated communication to non-PMBus® devices is enabled
by a page command. Supported command access privileges
with a pre-selected PAGE are defined in the following table.
Deviation from this table generates a communication error in
STATUS_CML register.
Page Command (00h)
The page command data byte of 00h prior to a command call will
address the controller-specific data and a page data byte of 01h
would address the DCM.
OPERATION Command (01h)
The OPERATION command can be used to turn on and off DCM.
This command accepts only two data values: 00h and 80h. If any
other value is sent the command will be rejected and a CML Data
error will result.
CLEAR_FAULTS Command (03h)
This command clears all status bits that have been previously set.
Persistent or active faults are re-asserted once cleared. All faults
are latched once asserted in the DCM controller. Registered faults
will not be cleared when shutting down the DCM powertrain by
sending the OPERATION command.
Data Byte Description
00h DCM controller
01h DCM
Data Byte Description
0x80 Turn ON
0x00 Turn OFF
Command Code
PAGE Data Byte
Access Type
00h 01h
PAGE 00h R/W R/W
OPERATION 01h R R/W
CLEAR_FAULTS 03h W W
CAPABILITY 19h R
VOUT_MODE 20h R R
VOUT_COMMAND 21h R/W
STATUS_BYTE 78h R/W R
STATUS_WORD 79h R R
STATUS_VOUT 7Ah R R/W
STATUS_IOUT 7Bh R R/W
STATUS_INPUT 7Ch R R/W
STATUS_TEMPERATURE 7Dh R R/W
STATUS_CML 7Eh R/W
STATUS_MFR_SPECIFIC 80h R/W R/W
READ_VIN 88h R
READ_VOUT 8Bh R
READ_IOUT 8Ch R R
READ_TEMPERATURE_1 8Dh R R
READ_POUT 96h R R
PMBUS_REVISION 98h R
MFR_ID 99h R
MFR_MODEL 9Ah R R
MFR_REVISION 9Bh R R
MFR_LOCATION 9Ch R R
MFR_DATE 9Dh R R
MFR_SERIAL 9Eh R R
MFR_VIN_MIN A0h R R
MFR_VIN_MAX A1h R R
MFR_VOUT_MIN A4h R R
MFR_VOUT_MAX A5h R R
MFR_IOUT_MAX A6h R R
MFR_POUT_MAX A7h R R
MFR_CONSTANT_CURRENT E8h R/W
MFR_V_I_COMMIT_COMMAND ECh W
7 6 5 4 3 2 1 0
Unit is On when asserted (default)
Reserved
1 0 0 0 0 0 0 0 b
DCM™ in a VIA™ Package Rev 1.0
Page 31 of 40 03/2020
DCM5614xD0H36K3yzz
CAPABILITY Command (19h)
The DCM returns a default value of 20h. This value indicates that
the PMBus® frequency supported is up to 400kHz and that both
Packet Error Checking (PEC) and SMBALERT# are not supported.
VOUT_MODE Command (20h)
The command returns the information about the mode used for all
the output voltage related commands. DCM uses DIRECT Mode
(40h) for all the output voltage related commands.
VOUT_COMMAND (21h)
This command sets the output voltage of device to the
commanded value.
Any values outside the device output voltage range sent by host
will be rejected,will not override the current value and will set the
Unsupported data bit in STATUS_CML.
This command uses DIRECT mode and following format:
7 6 5 4 3 2 1 0
Packet Error Checking is not supported
Maximum supported bus speed is 400kHz
The Device does not have SMBALERT# pin and does
not support the SMBus Alert Response protocol
Reserved
0 0 1 0 0 0 0 0 b
V
OUT_SET_POINT_ACTUAL
= V
OUT_SET_POINT_SET
• 10
–2
(Volts)
DCM™ in a VIA™ Package Rev 1.0
Page 32 of 40 03/2020
DCM5614xD0H36K3yzz
All fault or warning flags, if set, will remain asserted until
cleared by the host or once DCM power is removed. This
includes undervoltage fault, overvoltage fault, overcurrent fault,
overtemperature fault, undertemperature fault, communication
faults and analog controller shut-down fault.
Asserted status bits in all status registers, with the exception of
STATUS_WORD and STATUS_BYTE, can be individually cleared.
This is done by sending a data byte with one in the bit position
corresponding to the intended warning or fault to be cleared. Refer
to the PMBus® Power System Management Protocol Specification –
Part II – Revision 1.3 for details.
The POWER_GOOD# bit reflects the state of the device and does
not reflect the state of the POWER_GOOD# signal limits. The
POWER_GOOD_ON COMMAND (5Eh) and POWER_GOOD_OFF
COMMAND (5Fh) are not supported. The POWER_GOOD# bit is
set, when the DCM is not in the active state, to indicate that the
powertrain is inactive and not switching. The POWER_GOOD#
bit is cleared, when the DCM is in the enabled state, after the
powertrain is activated allowing for soft-start to elapse.
POWER_GOOD# and OFF bits cannot be cleared as they always
reflect the current state of the device.
The Busy bit can be cleared using CLEAR_FAULTS Command
(03h) or by writing data value (40h) to PAGE (00h) using the
STATUS_BYTE (78h).
Fault reporting, such as SMBALERT# signal output, and host
notification by temporarily acquiring bus master status is
not supported.
If the DCM controller is powered through VDDE, it will retain the
last telemetry data and this information will be available to the user
via a PMBus Status request. This is in agreement with the PMBus
standard, which requires that status bits remain set until specifically
cleared. Note that in the case where the DCM VIN is lost, the status
will always indicate an undervoltage fault, in addition to any other
fault that occurred.
NONE OF THE ABOVE bit will be asserted if either the
STATUS_MFR_SPECIFIC (80h) or the High Byte of the STATUS
WORD is set.
UNIT IS BUSY
UNIT IS OFF
Not Supported: VOUT_OV_FAULT
IOUT_OC_FAULT
TEMPERATURE FAULT OR WARNING
PMBusTM COMMUNICATION EVENT
NONE OF THE ABOVE
VIN_UV_FAULT
Not Supported: UNKNOWN FAULT OR WARNING
Not Supported: OTHER
Not Supported: FAN FAULT OR WARNING
POWER_GOOD Negated*
INPUT FAULT OR WARNING
IOUT/POUT FAULT OR WARNING
Not Supported: VOUT FAULT OR WARNING
STATUS_MFR_SPECIFIC
0111100011011110
Low ByteHigh Byte
STATUS_BYTE
STATUS_WORD
b
7 6 5 4 3 2 1 0
76543210
* equal to POWER_GOOD#
STATUS_BYTE (78h) and STATUS_WORD (79h)
STATUS_IOUT (7Bh)
Unsupported bits are indicated above. A one indicates a fault.
STATUS_VOUT (7Ah)
Unsupported bits are indicated above. A one indicates a fault.
IOUT_OC_FAULT
Not Supported: IOUT_OC_LV_FAULT
IOUT_OC_WARNING
Not Supported: IOUT_UC_FAULT
Not Supported: In Power Limiting Mode
Not Supported: POUT_OP_FAULT
Not Supported: POUT_OP_WARNING
Not Supported: Current Share Fault
7 6 5 4 3 2 1 0
1 0 0 1 0 0 0 0 b
VOUT_OV_FAULT
Not Supported: VOUT_OV_WARNING
VOUT_UV_WARNING
Not Supported:
VOUT_UV_FAULT
Not Supported: TON_MAX_FAULT
Not Supported: TOFF_MAX_WARNING
Not Supported: VOUT_TRACKING_ERROR
Not Supported: VOUT_MAX_WARNING
76543210
10010000b
DCM™ in a VIA™ Package Rev 1.0
Page 33 of 40 03/2020
DCM5614xD0H36K3yzz
STATUS_INPUT (7Ch)
Unsupported bits are indicated above. A one indicates a fault.
STATUS_TEMPERATURE (7Dh)
Unsupported bits are indicated above. A one indicates a fault.
STATUS_CML (7Eh)
Unsupported bits are indicated above. A one indicates a fault.
The STATUS_CML data byte will be asserted when an unsupported
PMBus® command or data or other communication fault occurs.
STATUS_MFR_SPECIFIC (80h)
The DCM in a VIA package has hardware protections and
supervisory protections. The hardware controller provides an
additional layer of protection and has the fastest response time.
The Hardware Controller Shut-Down Fault, when asserted,
indicates that at least one of the powertrain protection
faults is triggered.
The DCM UART is designed to operate with the DCM controller
UART. If the DCM UART CML is asserted, it may indicate a
hardware or connection issue between both internal devices.
The RAMP Fault bit, if asserted, indicates start of
voltage ramp failure.
When PAGE COMMAND (00h) data byte is equal to (00h),
Hardware Controller Shut-Down Fault, RAMP fault and DCM
UART CML bit will return DCM faults. The DCM UART CML will
also be asserted if active DCM stops responding. The DCM must
communicate at least once to the DCM controller in order to
trigger this FAULT. The DCM UART CML can be cleared using
PAGE (00h) CLEAR_FAULTS (03h) Command.
NVM READ ERROR is asserted when the DCM controller has an
error reading non-volatile memory on power-up.
AUX SUPPLY PRESENT bit indicates that the DCM controller is
powered up by external bias power.
OT_FAULT
OT_WARNING
Not Supported:
Not Supported:
Not Supported:
UT_WARNING
UT_FAULT
Reserved
Reserved
Reserved
Reserved
7 6 5 4 3 2 1 0
11010000b
Invalid Or Unsupported Command Received
Invalid Or Unsupported Data Received
Not Supported: Packet Error Check Failed
Not Supported: Memory Fault Detected
Reserved
Other Communication Faults
Not Supported: Other Memory Or Logic
Fault
Processor Fault Detected
7 6 5 4 3 2 1 0
1 1 0 0 0 0 1 0 b
Reserved
Reserved
Hardware Controller Shut-Down Fault
Reserved
UART COM ERROR
Reserved
Reserved
RAMP Fault
7 6 5 4 3 2 1 0
0 0 0 0 0 1 1 1 b
PAGE Data Byte = (01h)
VIN_OV_FAULT
VIN_OV_WARNING
Not Supported:
Not Supported:
VIN_UV_WARNING
VIN_UV_FAULT
Not Supported: IIN_OC_FAULT
Not Supported: IIN_OC_WARNING
Not Supported: PIN_OP_WARNING
Not Supported: Unit Off For Insufficient
Input Voltage
7 6 5 4 3 2 1 0
1 1 0 1 0 0 0 0 b
Reserved
Reserved
Hardware Controller Shut-Down Fault
DCM at PAGE (01h) is present
UART COM ERROR
NVM READ ERROR [f]
AUX SUPPLY PRESENT
RAMP Fault
7 6 5 4 3 2 1 0
0 0 0 1 0 1 1 1 b
PAGE Data Byte = (00h)
[f] Non-volatile memory read error.
UPC) VIC'OR
DCM™ in a VIA™ Package Rev 1.0
Page 34 of 40 03/2020
DCM5614xD0H36K3yzz
READ_VIN Command (88h)
If PAGE data byte is equal to (01h) command will return DCM’s
value of input voltage in the following format:
READ_VOUT Command (8Bh)
If PAGE data byte is equal to (01h) command will return DCM’s
output voltage in the following format:
READ_IOUT Command (8Ch)
If PAGE data byte is equal to (00h or 01h) command will return
DCM’s output current in the following format:
READ_TEMPERATURE_1 Command (8Dh)
If PAGE data byte is equal to (00h or 01h) command will return
DCM’s temperature in the following format:
READ_POUT Command (96h)
If PAGE data byte is equal to (00h or 01h) command will return
DCM’s output power in the following format:
MFR_VIN_MIN Command (A0h),
MFR_VIN_MAX Command (A1h),
MFR_VOUT_MIN Command (A4h),
MFR_VOUT_MAX Command (A5h),
MFR_IOUT_MAX Command (A6h),
MFR_POUT_MAX Command (A7h)
These values are set by the factory and indicate the device
input output voltage and output current range and output
power capacity. Information can be accessed with either PAGE
(00h) or (01h).
The DCM controller will report rated DCM input voltage minimum
and maximum in volts, output voltage minimum and maximum
in volts, output current maximum in Amperes and output power
maximum in watts.
MFR_CONSTANT_CURRENT COMMAND (E8h)
This command sets the value of DCM current limit threshold as
percentage of full load. The DCM will enter constant current
operation when a load is connected that exceeds the specified
current limit threshold.
Valid values are in the range of 00h – 69h (0 – 105% rated current).
The constant-current behavior of the DCM can be disabled by
entering any value greater than 69h. When disabled,
MFR_CONSTANT_CURRENT command will return 82h (130%).
In this mode the powertrain will cease switching operation in
the event of an overcurrent condition that exceeds the hardware
protection threshold IOUT-CL.
MFR_V_I_COMMIT_COMMAND Command (ECh)
This command stores the values of the output voltage
set point VOUT_COMMAND (21h) and current limit threshold
MFR_CONSTANT_CURRENT (E8h) in non-volatile memory. The
stored values become the default voltage setpoint and current limit
threshold upon recycling the DCM input voltage.
MFR_V_I_COMMIT_COMMAND is a block command and takes
0 bytes of data.
If enabled, the DCM powertrain will be momentarily disabled while
writing to non-volatile memory and will automatically restart once
the write sequence is completed.
VIN_ACTUAL = VIN_REPORTED • 10–1 (Volts)
VOUT_ACTUAL = VOUT_REPORTED • 10–2 (Volts)
IOUT_ACTUAL = IOUT_REPORTED • 10–2 (Amps)
T
ACTUAL
= ±T
REPORTED
(ºC)
P
OUT_ACTUAL
= P
OUT_REPORTED
• 10
–1
(W)
IOUT_VALUE_ACTUAL = IOUT_VALUE_SET • 10–2 Full Load (Amps)
DCM™ in a VIA™ Package Rev 1.0
Page 35 of 40 03/2020
DCM5614xD0H36K3yzz
Data Transmission Faults Implementation
This section describes data transmission faults as implemented in the DCM.
Data Content Faults Implementation
This section describes data content faults as implemented in the DCM.
Section Description
Response to Host Status Byte Status CML
Notes
NACK FFh CML Other Fault Unsupported
Data
10.8.1 Corrupted Data No response; PEC not
supported
10.8.2 Sending too few bits X X
10.8.3 Reading too few bits X X
10.8.4 Host sends or reads too few bytes X X
10.8.5 Host sends too many tytes X X X
10.8.6 Reading too many bytes X X X
10.8.7 Device busy X X
Device will ACK own address
BUSY bit in STATUS_BYTE
even if STATUS_WORD is set
Section Description
Response
to Host Status Byte Status CML
Notes
NACK CML Other Fault Unsupported
Command
Unsupported
Data
10.9.1 Inproperly set read bit in the
address byte XXX
10.9.2 Unsupported command code X X X
10.9.3 Invalid or unsupported data X X
10.9.4 Data out of range X X
10.9.5 Reserved bits No response; not a fault
u in 388% $15 j< mom="" emézacm="" me="" $552;="" 2:="" out="" mm:="" £5="" 0»="" 25m:="" sc="" ,="" es,="" $039:="" «e="" 554223="" «5="" 3.;me="" 2:="" out="" mmzl/="" 39m;="" :12;="" s="" was="" \="" 633="" a:="" ,="" 3255352.?="" egeisasguafiiés="" #28="" $5222.="" :5="" es="" 3:2="" :2:="" see:="" moan="" 85.2mm="" \="" mmel="" 521="" 325053="" 5:32.485“;="" mom="">53 102:5 c3 8: m9} / / 7 , ‘ i m _ :m V x ““““““‘d%fl w < ,="" m:="" e="" as:="" i="" ,5="" ‘="" ,5="" (as="" vicor="">
DCM™ in a VIA™ Package Rev 1.0
Page 36 of 40 03/2020
DCM5614xD0H36K3yzz
DCM in VIA Package Chassis (Lug) Mount Package Mechanical Drawing
)RUFKDVVLVPRXQWPRGHOV9LFRUSDUWQXPEHU
ZLOOEHQHHGHGIRUDSSOLFDWLRQVUHTXLULQJWKHXVHRIVLJQDOSLQV
127(6
8QOHVVRWKHUZLVHVSHFLILHGGLPHQVLRQVDUH,QFK>PP@
6HH3LQ&RQILJXUDWLRQDQG3LQ'HVFULSWLRQVHFWLRQVIRUSLQGHVLJQDWLRQV
1.171
29.750
.11
2.90
DIM 'A'
DIM 'B
.15
3.86
THRU (TYP)
,1387
,16(57
5(029('
35,25
7286(
287387
,16(57
5(029('
35,25
7286(
5
RED
6
BLACK
7
BLUE
8
WHITE
9
YELLOW
1
2
3
4
86(7<&2/8*25
(48,9)25,1387&211(&7,21
$//352'8&76
)25$//27+(5352'8&76
.37±.015
9.40±.381
DIM 'C'
23.98
609.09
.010 [.254]
1.40
35.54
PRODUCT DIM ‘A’ DIM ‘B’ DIM ‘C’
5614 DCM 1.61 [40.93] 2.970 [75.445] 5.57 [141.43]
. , :5 I w: 2 , : w _ A ““““““‘$N \ . . i ‘ . _ ‘ , l i i a ‘ . , , , h i “r _ 2 n ‘ 2 w , , a u 2 _ A 7 V as §§2~§.%Ei& , Mi . 3:255.“ 1135:1533 wxé oéé E: \E VICOR
DCM™ in a VIA™ Package Rev 1.0
Page 37 of 40 03/2020
DCM5614xD0H36K3yzz
DCM in VIA Package PCB (Board) Mount Package Mechanical Drawing
127(6
8QOHVVRWKHUZLVHVSHFLILHGGLPHQVLRQVDUH,QFK>PP@
6HH3LQ&RQILJXUDWLRQDQG3LQ'HVFULSWLRQVHFWLRQVIRUSLQGHVLJQDWLRQV
.11
2.90
.112±.025
2.846±.635
.947±.025
24.058±.635
1.171
29.750
.067
1.700
.134
3.400
.201
5.100
.859±.025
21.810±.635
.156±.025
3.970±.635
.452±.025
11.475±.635
.268
6.800
DIM 'F'
±.025 [.635]
DIM 'D'
±.025 [.635]
DIM 'G'
±.025 [.635]
1
2
10
11
12
13
3
4
BOTTOM SIDE
1.40
35.54
5
6
7
8
9
DIM 'C'
DIM 'E'
.080
2.032
(2) PL.
.150
3.810
(2) PL.
.025
.635
(5) PL.
.186±.020
4.720±.508
LONG PINS
(4) PL.
.107±.020
[2.713±.508]
SHORT PINS
(4) PL.
.37±.015
9.40±.381
.177±.020
4.486±.508
LONG PINS
(5) PL.
.098±.020
[2.480±.508]
SHORT PINS
(5) PL.
SEATING
PLANE
SEATING
PLANE
.010 [.254]
DIM 'A'
DIM 'B'
.15
3.86
THRU (TYP)
TOP VIEW
(COMPONENT SIDE)
PRODUCT DIM 'A' DIM 'B' DIM 'C' DIM 'D' DIM 'E' DIM 'F' DIM 'G'
5614 DCM 1.61 [40.93] 2.970 [75.445] 5.57 [141.437] 5.171 [131.337] 5.65 [143.58] 1.439 [36.554] 5.434 [138.017]
+w0$\\\\\\\\xfi/ / a] LK OAK, V /W W V A, ; 7 W h V ,4: P i W \ , A wa/W L}, \Hfiu K @»~f~@~ VICOR
DCM™ in a VIA™ Package Rev 1.0
Page 38 of 40 03/2020
DCM5614xD0H36K3yzz
DCM in VIA Package PCB (Board) Mount Package Recommended Hole Pattern
127(6
8QOHVVRWKHUZLVHVSHFLILHGGLPHQVLRQVDUH,QFK>PP@
6HH3LQ&RQILJXUDWLRQDQG3LQ'HVFULSWLRQVHFWLRQVIRUSLQGHVLJQDWLRQV
.112±.003
2.846±.076
.947±.003
24.058±.076
1.17.003
29.750±.076
DIM 'F'
±.003 [.076]
DIM 'B'
±.003 [.076]
DIM 'D'
±.003 [.076]
DIM 'G'
±.003 [.076]
.156±.003
3.970±.076
.859±.003
21.810±.076
.452±.003
11.475±.076
.120±.003
3.048±.076
PLATED THRU
.030 [.762]
ANNULAR RING
(2) PL.
.190±.003
4.826±.076
PLATED THRU
.030 [.762]
ANNULAR RING
(2) PL.
.172±.003
4.369±.076
PLATED THRU
.064 [1.626]
ANNULAR RING
(4) PL.
2
1
11
10
13
12
4
3
SEE DETAIL 'A'
RECOMMENDED HOLE PATTERN
(COMPONENT SIDE)
.067±.003
1.700±.076
.134±.003
3.400±.076
.20.003
5.100±.076
.268±.003
6.800±.076
.023±.003
.584±.076
TYP
.023±.003
.584±.076
TYP
.046±.003
1.168±.076
(3) PL.
.040±.003
1.016±.076
PLATED THRU
.008 [.203]
ANNULAR RING
(5) PL.
DETAIL A
5
6
7
8
9
PRODUCT DIM 'A' DIM 'B' DIM 'C' DIM 'D' DIM 'E' DIM 'F' DIM 'G'
5614 DCM 1.61 [40.93] 2.970 [75.445] 5.57 [141.437] 5.171 [131.337] 5.65 [143.58] 1.439 [36.554] 5.434 [138.017]
VIC'OR
DCM™ in a VIA™ Package Rev 1.0
Page 39 of 40 03/2020
DCM5614xD0H36K3yzz
Revision History
Revision Date Description Page Number(s)
1.0 03/04/20 Initial release n/a
VIC'OR
DCM™ in a VIA™ Package Rev 1.0
Page 40 of 40 03/2020
DCM5614xD0H36K3yzz
Vicor’s comprehensive line of power solutions includes high density AC-DC and DC-DC modules and
accessory components, fully configurable AC-DC and DC-DC power supplies, and complete custom
power systems.
Information furnished by Vicor is believed to be accurate and reliable. However, no responsibility is assumed by Vicor for its use. Vicor
makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication. Vicor reserves
the right to make changes to any products, specifications, and product descriptions at any time without notice. Information published by
Vicor has been checked and is believed to be accurate at the time it was printed; however, Vicor assumes no responsibility for inaccuracies.
Testing and other quality controls are used to the extent Vicor deems necessary to support Vicor’s product warranty. Except where
mandated by government requirements, testing of all parameters of each product is not necessarily performed.
Specifications are subject to change without notice.
Visit http://www.vicorpower.com/dc-dc/isolated-regulated/dcm for the latest product information.
Vicor’s Standard Terms and Conditions and Product Warranty
All sales are subject to Vicor’s Standard Terms and Conditions of Sale, and Product Warranty which are available on Vicor’s webpage
(http://www.vicorpower.com/termsconditionswarranty) or upon request.
Life Support Policy
VICOR’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE
EXPRESS PRIOR WRITTEN APPROVAL OF THE CHIEF EXECUTIVE OFFICER AND GENERAL COUNSEL OF VICOR CORPORATION. As used
herein, life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b) support or sustain life and
whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to
result in a significant injury to the user. A critical component is any component in a life support device or system whose failure to perform
can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness. Per Vicor Terms
and Conditions of Sale, the user of Vicor products and components in life support applications assumes all risks of such use and indemnifies
Vicor against all liability and damages.
Intellectual Property Notice
Vicor and its subsidiaries own Intellectual Property (including issued U.S. and Foreign Patents and pending patent applications) relating to the
products described in this data sheet. No license, whether express, implied, or arising by estoppel or otherwise, to any intellectual property
rights is granted by this document. Interested parties should contact Vicor’s Intellectual Property Department.
The products described on this data sheet are protected by the following U.S. Patents Numbers:
Patents Pennding
Contact Us: http://www.vicorpower.com/contact-us
Vicor Corporation
25 Frontage Road
Andover, MA, USA 01810
Tel: 800-735-6200
Fax: 978-475-6715
www.vicorpower.com
email
Customer Service: custserv@vicorpower.com
Technical Support: apps@vicorpower.com
©2020 Vicor Corporation. All rights reserved. The Vicor name is a registered trademark of Vicor Corporation.
I2C™ is a trademark of NXP semiconductor.
Littelfuse® is a registered trademark of Littelfuse, Inc.
PMBus® is a registered trademark of SMIF, Inc.
All other trademarks, product names, logos and brands are property of their respective owners.