PXD15-xxSxx Datasheet by TDK-Lambda Americas Inc

TDK-Lambda
Features
Low profile: 2.0X1.0X0.4 inches (50.8X25.4X10.2mm)
2:1 wide input voltage of 9-18, 18-36 and 36-75VDC
15 Watts output power
Input to output isolation: 1600Vdc, min
Operating case temperature range :100°C max
Over-current protection, auto-recovery
Output over voltage protection
ISO 9001 certified manufacturing facilities
UL60950-1, EN60950-1 and IEC60950-1 licensed
CE Mark meet 2006/95/EC, 93/68/EEC and 2004/108/EC
Compliant to RoHS EU directive 2002/95/EC
Applications
Distributed power architectures
Communication equipment
Computer equipment
Option
Positive logic & Negative logic Remote on/off
PXD15-xxSxx Single Output DC/DC Converter
9 to 75 Vdc input, 3.3 to 15 Vdc Single Output, 15W
General Description
The PXD15-xxSxx series offers15 watts of output power from a 2 x 1 x 0.4 inch package. This series has
a 2:1 wide input voltage of 9-18, 18-36 or 36-75VDC.
Table of contents
Absolute maximum rating P2 Solder, clearing, and drying considerations P8
Output Specifications P2 Characteristic curve P9
Input Specifications P3 Test configurations P17
General Specifications P3 Part number structure P18
Remote on/off control P4 Mechanical data P18
Thermal Consideration P5 Safety and installation instruction P19
Output over current protection P7 MTBF and Reliability P19
Short circuit protection P7
Oct.2005
2
15W,SingleOutput
Absolute Maximum Rating
Parameter Device Min Typ Max Unit
Input Voltage Continuous Transient (100ms)
12Sxx
24Sxx
48Sxx
36
50
100
Vdc
Vdc
Vdc
Operating temperature range(With De-rating curve) Standard -40 +85 °C
Operating case range All 100 °C
Storage temperature All -55 +105 °C
I/O Isolation voltage All 1600 Vdc
I/O Isolation capacitance All 300 pF
Output Specifications
Parameter Device Min Typ Max Unit
Operating Output Range
xxS3P3
xxS05
xxS12
xxS15
3.267
4.95
11.88
14.85
3.30
5.00
12.00
15.00
3.333
5.05
12.12
15.15
Vdc
Vdc
Vdc
Vdc
Line Regulation(LL to HLat Full Load) All -0.5 0.5 %
Load Regulation(Min. to 100% Full Load) All -0.5 0.5 %
Output Ripple & Noise (20MHz bandwidth) All 50 mVp-p
Temperature Coefficient All -0.02 +0.02 %/°C
Transient Response Recovery Time
(25% load step change) All 250 uS
Output Current
xxS3P3
12S05
12S12
12S15
24S05
24S12
24S15
48S05
48S12
48S15
0
15
0
0
15
0
10
0
10
0
4000
3000
1250
1000
3000
1250
1000
3000
1250
1000
mA
mA
mA
mA
Output Over Voltage Protection Zener diode clamp
xxS3P3
xxS05
xxS12
xxS15
3.9
6.2
15
18
Vdc
Vdc
Vdc
Vdc
Output Over Current Protection All 150 % FL.
Output Short Circuit Protection All Hiccup, automatics recovery
Output Capacitor Load
xxS3P3
xxS05
xxS12
xxS15
10200
7050
1035
705
μF
μF
μF
μF
Oct.2005
3
15W,SingleOutput
Input Specifications
Parameter Device Min Typ Max Unit
Operating Input voltage
12Sxx
24Sxx
48Sxx
9
18
36
12
24
48
18
36
75
Vdc
Vdc
Vdc
Input reflected ripple current
(please see he testing configurations part.) All 20 mAp-p
Start up time
(nominal vin and constant resistive load power up) All 20 mS
Remote ON/OFF
Negative Logic DC-DC ON
DC-DC OFF
Positive Logic DC-DC ON
DC-DC OFF
All
All
All
All
0
3.5
3.5
0
1.2
12
12
1.2
Vdc
Vdc
Vdc
Vdc
General Specifications
Parameter Device Min Typ Max Unit
Efficiency
Vin=nom and full load
12S3P3
12S05
12S12
12S15
24S3P3
24S05
24S12
24S15
48S3P3
48S05
48S12
48S15
79
82
86
86
80
84
85
85
81
83
87
86
%
%
%
%
%
%
%
%
%
%
%
%
Isolation resistance All 109Ω
Isolation Capacitance All 300 pF
Switching Frequency ( Vin, nom and full load) All 500 KHz
Weight All 27 g
MTBF All 2.041×106hours
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Oct.2005
4
15W,SingleOutput
Remote On/Off Control
The Remote ON/OFF pin is used to turn the DC/DC converter on and off. T
he user must use a switch to control
the logic voltage (high or low) level of the pin referenced to -Vin. The switch can be
a open collector transistor, FET. or
opto-Coupler. The switch must be capable of sinking up to 0.5 mAfor a low-level logic voltage. For a high logic
level
for the ON/OFF signal,the allowable leakage current of the switch at 12Vis 0.5mA.
Remote ON/OFF ImplementationCircuits
Isolated-Control Remote ON/OFF Level Control UsingTTL Output
Level Control Using Line Voltage
PXD15-xxSxx is turned off
with Low-level logic
PXD15-xxSxx is turned on
with High-level logic
TEMPERATURE MEASURE PO‘NT V noun] . 15%“ ‘20
Oct.2005
5
15W,SingleOutput
Thermal Consideration
The power module operates in a variety of thermal environments. S
ufficient cooling should be provided to help
ensure reliable operation of the unit. Heat is removed by conduction, convection, an
d radiation to the surrounding
environment. Proper cooling can be verified by measuring the point as shown in the figure below
this locationshould not exceed 100°C. When Operating, adequate cooling must be provided to maintain the test point
temperature at or below 100°C. Although the maximum temperature of the power modules is 100°C,
lowering this
temperature will increase the reliability of the unit.
Measurement shown ininches(mm) TOP VIEW
Following are de-rating curves for PXD15-12S05, PXD15-24S3P3, PXD15-48S12
PXD15-12S05
natural convection
natural convection
with heat-sink
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Oct.2005
6
15W,SingleOutput
PXD15-24S3P3
PXD15-48S12
natural convection
natural convection
with heat-sink
natural convection
natural convection
with heat-sink
Oct.2005
7
15W,SingleOutput
Output over current protection
When excessive output currents occur in the system, circuit protection is required on all converters. Normally,
overload current is maintained at approximately 150 percent of rated current for PXD15-xxDxx series..
Hiccup-
mode is a method used in a converter whose purpose is to protect the converter from being damaged
during an over-current fault condition. It also enables the converter to restart
when the fault is removed. There are
other ways of protecting the converter when it is over-
loaded, such as the maximum current limiting or the current
foldback method.
One of the problems resulting from over current is that excessive heat may be generate
d in power devices;
especially MOSFET and Schottky diodes and the temperature of these devices may exceed their specified limits. A
protection mechanism has to be used to prevent these power devices from beingdamaged.
The operation of hiccup is as follows. When the current sense circuit sees an over-current event, the controller
shuts off the converter for a given time and then tries to re-start the converter. If the over-load condition has been
removed, the converter will start-up and operate normally; otherwise, the controller will see anotherover-current
event and shut off the converteragain, repeating the previous cycle. Hiccup operation has none of the drawbacks of
the other two protection methods, although it’s circuit is more complicated because it requires a timing circuit. The
excess heat due to overload lasts for only a short duration in the hiccup cycle, hence the junction temperature of the
power devices is much lower.
Short Circuitry Protection
Continuous, hiccup and auto-recovery mode.
During short circuit, converter still shut down.The average current during this condition will be very low and the
device can be safety in this condition.
2meMAx 500 ‘C J 250 TEMPERATL R F ISO / / 0 50 0 I00 200 TIMI; (SEC)
Oct.2005
8
15W,SingleOutput
Soldering and Reflow Consideration
Lead free wave solder profile forPXD15-xxSxx DIP type
Zone Reference Parameter
Preheat zone Rise temp. speed : 3°C / sec max.
Preheat temp. : 100~130°C
Actual heating Peak temp. : 250~260°C
Peak time (T1+T2 time) : 4~6 sec
Reference Solder: Sn-Ag-Cu/Sn-Cu
Hand Welding: Soldering iron-Power 90W
Welding Time:2-4 sec
Temp.: 80-400 °C
Oct.2005
9
15W,SingleOutput
Characteristic Curve
Efficiency
a. Efficiency with load change underdifferentline condition at room temperature
PXD15-12S05
65.00
70.00
75.00
80.00
85.00
0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3
lout(mA )
Eff(%)
PXD15-24S3P3
60.00
65.00
70.00
75.00
80.00
85.00
0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4
lout(A )
Eff(%)
PXD15-48S12
50.00
60.00
70.00
80.00
90.00
0.13 0.25 0.38 0.50 0.63 0.75 0.88 1.00 1.13 1.25
lout(A )
Eff(%)
9V
12V
18V
18V
24V
36V
36V
48V
75V
Oct.2005
10
15W,SingleOutput
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Oct.2005
11
15W,SingleOutput
b. Efficiency with line change under different load condition at room temperature
PXD15-12S05
PXD15-24S3P3
60.00
65.00
70.00
75.00
80.00
85.00
18V 20V 22V 24V 26V 28V 30V 32V 34V 36V
Vin(V)
Eff(%)
PXD15-48S12
50.00
60.00
70.00
80.00
90.00
36V 40V 44V 48V 52V 56V 60V 64V 68V 75V
Vin(V)
Eff(%)
400mA
2000mA
4000mA
125mA
625mA
1250mA
Oct.2005
12
15W,SingleOutput
Power dissipation curve
PXD15-12S05
0.500
1.000
1.500
2.000
2.500
3.000
3.500
4.000
0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3
lout(A )
pd(w)
PXD15-24S3P3
0.500
1.000
1.500
2.000
2.500
3.000
3.500
4.000
0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4
lout(A )
pd(w)
PXD15-48S12
50.00
60.00
70.00
80.00
90.00
0.13 0.25 0.38 0.50 0.63 0.75 0.88 1.00 1.13 1.25
lout(mA )
Eff(%)
9V
12V
18V
18V
24V
36V
36V
48V
75V
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Oct.2005
13
15W,SingleOutput
Output ripple & noise
PXD15-12S05
LowLine, FullLoad NormalLine, FullLoad HighLine, Full Load
OutputRippleNoise=19.6mV OutputRippleNoise=22.8mV OutputRippleNoise=29.6mV
PXD15-24S3P3
LowLine, FullLoad NormalLine, FullLoad HighLine, Full Load
OutputRippleNoise=15.2mV OutputRippleNoise=15.6mV OutputRippleNoise=20.0mV
PXD15-48S12
LowLine, FullLoad NormalLine, FullLoad HighLine, Full Load
OutputRippleNoise=28.4 OutputRippleNoise=27.6mV OutputRippleNoise=29.6mV
Oct.2005
14
15W,SingleOutput
Transient Peak and Response
PXD15-12S05
LowLine, FullLoad NormalLine, FullLoad HighLine, Full Load
Transient Peak 85.0mV Transient Peak 88.0mV Transient Peak 89.0mV
Transient Response 95.2uS Transient Response 80.8uS Transient Response 95.2uS
PXD15-24S3P3
LowLine, FullLoad NormalLine, FullLoad HighLine, Full Load
Transient Peak 81.0mV Transient Peak 86.0mV Transient Peak 45.6mV
Transient Response130uS TransientResponse 170uS Transient Response200uS
PXD15-48S12
LowLine, FullLoad NormalLine, FullLoad HighLine, FullLoad
Transient Peak 56mV Transient Peak 66mV Transient Peak 62mV
Transient Response130uS TransientResponse 150uS Transient Response 150uS
Oct.2005
15
15W,SingleOutput
Inrush Current
PXD15-12S05
LowLine, FullLoad NormalLine, FullLoad HighLine, Full Load
Inrush current=(58.6/10) X500mA=2930mA Inrush current=(42.2/10) x500mA=2210mA Inrush current=(27.4/10) x500mA=1370mA
Duration: 848uS Duration: 808uS Duration: 712uS
PXD15-24S3P3
LowLine, FullLoad Normal Line, FullLoad HighLine, Full Load
Inrush current=(29.2/10) X500mA=1460mA Inrush current=(20.8/10) x500mA=1040mA Inrush current=(14.4/10) x500mA=720mA
Duration: 664uS Duration: 640uS Duration: 600uS
PXD15-48S12
LowLine, FullLoad NormalLine, FullLoad HighLine, FullLoad
Inrush current=(63.8/10) X100mA=638mA Inrush current=(49.6/10) x100mA=496mA Inrush current=(37.8/10) x100mA=378mA
Duration: 1.58mS Duration: 1.44mS Duration: 1.22mS
Oct.2005
16
15W,SingleOutput
Input Ripple Current
PXD15-12S05
LowLine, FullLoad NormalLine, FullLoad HighLine, Full Load
Ripple current=(7.6/10) x5=3.8mA Ripple current=(5.8/10) x5=2.9mA Ripple current=(6.4/10) x5=3.2mA
PXD15-24S3P3
LowLine, FullLoad NormalLine, FullLoad HighLine, Full Load
Ripplecurrent=(12/10)x5=6.0mA Ripplecurrent=(10.2/10) x5=5.1mA Ripplecurrent=(9/10) x5=4.5mA
PXD15-48S12
LowLine, FullLoad NormalLine, FullLoad HighLine, Full Load
Ripple current=(10.4/10)x5=5.2mA Ripple current=(7.8/10) x5=3.9mA Ripple current=(9.8/10) x5=4.9mA
11‘”. ”a.“ . 125w
Oct.2005
17
15W,SingleOutput
Delay Time and Rise Time
PXD15-12S05
Normal Line, Full Load Normal Line, Full Load
RiseTime=464.1uS DelayTime=724uS
PXD15-24S3P3
NormalLine, FullLoad Normal Line, FullLoad
RiseTime=425.2uS DelayTime=636uS
PXD15-48S12
NormalLine, FullLoad Normal Line, FullLoad
RiseTime=1.053mS DelayTime=1.22mS
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Oct.2005
18
15W,SingleOutput
Testing Configurations
Input Reflected-ripple Current Measurement Test:
Component Value Voltage Reference
L 12μH ---- ----
C 100μF 100V Aluminum Electrolytic Capacitor
Peak-to-Peak OutputRipple & Noise Measurement Test:
Output Voltage and EfficiencyMeasurement Test:
Note: All measurements are taken at the module terminals.
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Oct.2005
19
15W,SingleOutput
Part Number Structure
PXD 15 – 24 S 12
Mechanical Data
PIN CONNECTION
PIN Function
1 + INPUT
2 - INPUT
3 + OUTPUT
4 NO PIN
5 - OUTPUT
6 CTRL(Option)
Total Output P
ower
1
5Watt
InputVoltage Range
12 : 9~18V
24 : 18~36V
48 : 36~75V SingleOutput
OutputVoltage
3P3: 3.3V
05 : 5V
12 : 12V
15 : 15V
1.All dimensions in Inches (mm)
2. Pin pitch tolerance ±0.0014(0.35)
3. Tolerance：x.xx±0.02 (x.x±0.5)
x.xxx±0.01 (x.xx±0.25)
0.40
(10.2) 0.40
(10.2)
0.50
(12.7)
1.00(25.4)
0.40
(10.2)
DIA.0.04(1.0)
2.00(50.8)
0.10(2.5)
0.20(5.1)
0.80(20.3)0.60(15.2)
0.22(5.6)
1 2
3 4 5
6
Bottom
View
.fl.
Oct.2005
20
15W,SingleOutput
Safety and Installation Instruction
Isolation consideration
The PXD15-xxSxx series features 1.6k Volt DC isolation from input to output, input to case, and output to case. The
input to output resistance is greater than 109ohms. Nevertheless, if the system using the power module needs to
receive safety agency approval, certain rules must be followed in the design of the system using the model. In
particular, all of the creepage and clearance requirements of the end-use safety requirement must be observed.
These documents include UL-60950-1, EN60950-1 and CSA22.2-
960, although specific applications may have other
or additional requirements.
Fusing Consideration
Caution:This power module is not internally fused.An input line fuse must always be used. This encapsulated power
module can be used in a wide variety of applications, ranging from simple stand-alone operation to an integrated part
of a sophisticated power architecture. For maximum flexibility, internal fusing is not included; however, to achieve
maximum safety and system protection, always use an input line fuse. The safety agencies require a slow-blow fuse
with maximum rating of 6.3A. Based on the information provided in this data sheet on inrush energy and maximum
DC
input current, the same type of fuse with lower rating can be used. Refer to the fuse manufacturer’s data for further
information.
Minimum Load Requirement
10%(of full load) minimum load required. The 10% minimum load requirement is in order to meet all performance
specifications. The PXD15-xxSxx series does not properly maintain regulation and operate under a no- load
condition. The output voltage drops off about 10%.
MTBF and Reliability
The MTBF of PXD15-xxSxx series of DC/DC converters has been calculated using
1.MIL-HDBK-217F under the following conditions:
Nominal Input Voltage
Io = Io, max
Ta = 25°C ℃
The resulting figure for MTBF is 1.044× 106hours.
2.Bell-core TR-NWT-000332 Case I:
50% stress, OperatingTemperature at 40°C ℃(Ground fixed and controlled environment)
The resulting figure for MTBF is 2.041× 106hours.