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PSS, PSD User Manual Datasheet by TDK-Lambda Americas Inc
PSS-PSD SERIES
PSS 'PSD SERIES
Instruction Manual
I Before Using This Power Supply
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DENSEI-LAMBDA
PSS-PSD SERIES
Table of Contents
I Block Diagram
I Terminal Explanation
I Explanation of Function and Precautions
1. Basic Connection
2. Input Surge Current
3. Over Current Protection (OCP)
4. Over Voltage Protection (OVP)
5. Input / Output Filter
6. Output Voltage Adjustment (TRM)
7. ONIOFF Control (CNT Terminal )
8. Series- Parallel Operation
9. Operating Ambient Temperature
10. Operating Ambient Humidity
1 1. Cooling Method
12. Isolation and Withstand Voltage Test
13. Vibration
14. Shock
15. Soldering Condition
16. Cleaning
17. Storage Condition and duration
18. Safety Consideration
I Mounting Method
I Before concluding module damage
DENSEI-LAMBDA
PSS'PSD SERIES
I Block Diagram
[’88le
+Vin W—
l—O +Vo
l—o —Vo
Swvtcl'ung
bu
Rectifier
Input filter
-Vin 0*
Output Filter
O‘CP
—-—-O TRM
Control
Sens:
Circuit Topology : RCC (Selfvcommutated Flyback) Switching frequency: 150 ~ 800 kHz
, (Frequency is changed by input and output condition)
PSSSJ’SSE
+Vino—m— a; u 5 3 r0 +Vo
E E 3 ( ‘5 L:
s g ) C 8 “ LO
-Vinofi g ,,, n: g; —Vo
g; o
1 o
_ _ fi
CNTG E 3 § ”H 5 "“OTRM
\: 5 S ‘0
O 0 O
}*
Circuit Topclogy : RCC (Sclf-commuxated Flyback} Switching frequency: 150 ~ 800 kHz
(Frequency is changed by inpux and output condition)
P8510
+Vin o—o’v— ? 3-, E +Vo
“ 3 La 3 PE 3—: re
MW r_ M“ 2 Lo-“
5 § 5
- a
ONTO § g E a g _3 5 --———OTRM
o (3 a 1
| y it
Circuit Topology : Flyback Switching fiequency: SVinpm model 340 kHz
24V input model 380 kHz
12,48V input model 420 kHz
DENSEl—LAMBDA
PSS-PSD SERIES
PSDIRS
Maw E m g g F0 +V°
§ § 38* 30 E 0 COM
, *5 fl o LO
*Vm 0— g 3 E a: g. _v0
1 0' °
__ 3
E g g —OTRM
‘5 1/:
8
| DH
CircuitTopologyzkcc (Self-commuted Flyback) Switching frequency: 150~800 kHz
(Frequency is changed by input and output condition)
rsmysns
«Nine—41W... 35 a 33 E F0 +Vo
g =
E g L 38‘ '1”: L; L: COM
, :3 - o :
-VmO-i 3 u, u. m % —V0
0; o
l o
u
ONTO 5? g __3 g 40mm
5 5 :3
Circuit Tupulogy : RCC (Sclfwommmted Flyback) Switching frequency: 150~soo kHz
(Frequency is changed by input and output oundition)
PSDIO
. +Vo
+Van—m~“-‘ a g" E a F0
E E 7 ( E S 0 COM
.4 s l ) g 0 U-
— ' a 'E " “S
VmO———- £ w '3‘ a ~Vo
1 5 ‘5
. O
o
— w
2 (n
CNTC it 3? go ¥ 3 é -——o TRM
9: *a 0 3 a
O a: °
° ° ”‘ >Hz
CiwuilTopology:Flyback Switching frequency: Svfnpulmodel 340 kHz
12.24V Input model 380 kHz
48Vinput mode! 420 kHz
3
DENSEl-LAMBDA
PSS-PSD SERIES
I Terminal Explanation
1. Before Using This Power Supply
.Coufirm connections tov inpufloutput (erminals and signal terminals are correct as indicaied in the instruction
manuaL
2. Terminal connection method
BSfiLRi
-m
um ( P551)
35 (Pm ,xo)
< connemed="" capacitor="" when="" evaluation="" data="" is="" measured="">
C1 = Electrolytic ca acitor
Input PSS/PSD PSS/PSD PSS/PSD PSS/PSD
Voltage 1R5 3 6 10
5V 150M: 220w 470w GSOuF
12V 4MP as” 1!)ch 220w
24V mg? 2210‘ 33mm 47.“?
48v 2.2a 4.7““ 10w= 22“?
C2, C3 1 Ceramic capacitor luF
DENSEI-IAMBDA
mt «mm
as (an610)
PSS- PSD SERIES
I Explanation of Functions and Precautions
1 Basic Connection
1) Unstable Input Voltage
For input voltage with ripple voltage, the range of ripple voltage shall be within the input voltage range shown
in the specification as the following figure.
ll
0*Vlfl +Vout.
Vin PSS/PSD '-
-Vout ~
Vin
2) Battery
When using banery as input power some, file minimum and maximum input voltage shall not sway out if the
specification.
.v.‘
Vin min.
~ Vin max PSS/PSD
-Vln
3) Reverse Input Polarity
Wrong polarity of input may lead to damage of the power supply unit Amch a diode and a fuse to avoid
damage due to inverse connection of input,
m"
PSS/PSD
-Vin
4) Input Fuse
An internal fuse is provided in a unit. If output current of input power source is limited, the fuse may not blow
out. [menial fuse ratings are as follows:
Input PSS/PSD PSS/PSD PSS/PSD PSS/PSD
voltage 1R5 3 6 10
5V 2.3A 4,0A 5.0A lOlOA
12V 1,2A 2.5A/2.3A 2.5A 5.0A
24V 0.7A 1.2A 2.0A 25A
48V 0.7A 0.7A 145A 2.0A
DENSEl-LAMBDA
PSS-PSD SERIES
2.
5
Input Surge Current
Input surge current flows for a short period of time during line throw-in. When using plural number of the
units together following input currents are added. Please choose input switch and external fuse with proper
current rating.
Over Currant Protection (OCP)
When OCP activates, output voltage drops. When over current condition is released, the output voltage is
aummatically recovered Being in short or overload condition for more than 30 seconds may cause damage on
fine unit.
Due to fold back characteristics of OCP, the output may not rise up steady with constant current load or
inductive load.
Over Voltage Protection
Over Voltage Protection is not provided in this PSS and PSD series.
Input I Output Filter
1) Input Ripple and Noise
An internal filter is provided in a unit, Unit can operation even without external input capacitor but attaching
capacitor at input have effect in further reducing the noise, The external capacitor shall be attached as close as
possible to input terminal of PSS and PSD series.
PSS/PSD1R5,3,6 PSS/PSDIO
+Vin
When wire fi‘om input power source to PSS/PSD series is long, the impedance of input line is large and spike
noise or inductance of input wire may exert a bad influence on the unit due to high impedance of input wire.
In this case, attachment of external capacitor is recommended.
Recommended capacitance of the external capacitor is 10~680 it F. Choose a suitable external capacitor in
accordance with operating condition.
2) Output Ripple and Noise
(l)To reduce output ripple, attachments of aluminum electrolytic capacitors are recommended at output,
The capacitors shall be l~200 it P. Please adjust the maximum capacity of the capacitor to 1000 L: F or less.
In addition, when using 200 h F~1000 it F capacitors characteristics are especially affect/ed.
Therefore please perform sufficient evaluation before using this product
When load is equal or less than 20% output ripple might increase.
For this case, please add external circuit below.
DENSEl-LAMBDA
PSS- PSD SERIES
(DAttach a dummy resistor (dummy resistor value shown in table below) in parallel with the output capacitor
@ Connector a resistor in series with the output capacitor.
9Vout
PSS/PSD
'Vout
Series resistor rangefill Q to 0.47 i}
Capacitors value
82uF 100M: ZZOMF 4701M: 680M: lOOOuF
Output Voltage
3.3V 7 7 V — 5% 5%
5V - ~ 7 5% 5% 5%
12V 7 5% 5% 10% 10% 1 0%
+Vout
4.
PSS/PSD
~Vout
Also, attach 7: shape filter as following to further reduce output ripple. For this case, use l~lOOuH coil.
PSS/PSD
(2)To reduce high firequency output miss, connect 1 it F or less ceramic capacitor at output.
3) Using Long Load Wires
Ifnoise is generated due to long Wiring to load (amino! fi‘orn output terminal, attach a capacitor as close as
possible to load terminal as shown below,
Won
-Vau(
Load
DENSEI—LAMBDA
PSS‘PSD SERIES
6. Maximum Ripple and Noise
Measure awarding to the specified methods based on IEITA RC-9141(Clause 7.12 and 7.13) which is described
in the following. Connect ceramic capacitor 02:1 )4 F at 50mm distance from the output terminals.
Measure at ceramic capacitor (C2) leads using coaxial cable with J'EITA attachment.
Use oscilloscope with 100MHz fi-equency bandwidth or equivalent.
m short as possible
4V
C2 Load
-V 100MHz
Bandwidh
w 1,5m 50 u .
Coaxial cable
Oscilloscope
JElTA
Attachment
11:50 9
among?
Take note that output ripple voltage and output spike noise may vary depending on PCB wiring design.
Generally, output ripple voltage and output spike noise can be reduced by unmeasing value of external capacitor,
7. Output Voltage Adjustment (TRM)
By connecting TRM terminal to +Vout or —Vout, output voltage can be adjusted as the following table.
Model Open ~Vout and Short +Vout and Short
PSS“-*-3R3 3.3V 3.67V 2.84V
PSS*-*-5 5V 6V 4.3V
PSS‘-*-12 12V 15.3V .
PSD*-*-1212 :IZV i15.3V *
kTyp.)
Also, voltage can be adjusted by connecting TRM terminal to +Vout or eVout terminal with resistor,
When increasing output voltage When decreasing output voltage
Model Open -Vout and Resistor +Vout and Resistor
PSS*—*-3R3 3.3V 3.3~3.67V (*1) 2.84~3,3V (*2)
PSS*-‘-S 5v 5~6V (*3) 4.3~5V (*4)
PSS’“-"-12 12V 12~l§.3V (*5) -
PSD*-*-1212 :l: 12V i12~i153V (*6) -
(T yp.)
DENSEI-LAMBDA
PSS-PSD SERIES
*1:w=(3252manna/(mm)
*2:v (3.252XR+36.l36)/(R+12.92)
'3:VO=(5.01 >< r+40.862)/(r+6.8)="" ‘4:v="" (5.01xr+40.862)/(r+9.522)="" *5:vo="(12117">
PSS-PSD SERIES
9.
Series - Parallel Operation
1) Series Operation
As shown in the following figure, it is possible to connect the units in series. If the output voltage does not start
up in series connection, connect a diode with low forwm'd voltage ie, schouky barrier diode. Use diode that
reverses voltage is more than twice the voltage between +Vout and —Vout. Also, the maximum forward current
of the diode shall be sufficiently larger than the output current. Whichever smaller nominal current of a unit in
series operation shall be maintained as the maximum output current.
2) An application of PSD series
PSD series can be used as shown below figure. In this case, PSD series operate as if single output (24V output)
\mits,
- mm mm
3) Parallel Operation
10.
11
12
It is not allowed to connect in parallel to increase the output current, however, it is possible if the load current is
less than the maximum output current of the unit.
Operating Ambient Temperature
The operating ambient oemperature is from -40°O~35°C. However, the output load should be derated
accordingly to the ambient temperature and airflow speed (refer to derating curve of specification sheet).
There is no restriction on mounting direction but there should be enough consideration for airflow so that heat
does not accumulate around the power supply vicinity.
Determine external components configuration and mounting direction on PCB such that airflow through the
power supply from force air or convection cooling is not blocked.
Operating Ambient Humidity
Take note that moisture could lead to power supply abnormal operation or damage.
Cooling Method
The operating ambient temperature is from —40°O~85°C, However, the output load should be derailed
accordingly to the ambient temperature and airflow speed (refer to derating curve of specification sheet).
10
DENSEI-LAMBDA
PSS- PSD SERIES
13
14
15
16
17
18
19
Isolation and Withstand Voltage Test
Avoid performing the isolation resistance test with voltage that is over specification. At the withstand voltage
test, the voltage shall be gradually increased to apply and decreased to shut down the input. Especially using
timer, the impulse voltage several times as the applied voltage may break out at shutting down and cause of
damage on the units.
Vibration
Vibration of power supply is defined in case of momting on PCB.
Shock
Value for the conditions of out shipping and packaging
Soldering Condition
Soldering temperature
® Soldering Dip 1 260 °C less than 10sec
Pie-heat: 110 °C 30 . 40 see
® Manuel soldering : 350°C less than Ssec
Cleaning Method
Recommended cleaning method afier soldering is as follows:
(D Solvent: IPA
® Procedure
PSS/PSD series used non—cleaning flux. So it is recommended not to Wash the unit, For unavoidable cases,
use IPA only terminals when cleaning with brush
Note) contact us ifyou are going to clean up the power supply not follow by the recommended method.
Storage condition and duration
® Storage condition
Temperemre: 5 - 30°C
Humidity: 40 - 60 %RH
® Storage dmation
Please store the products less than one year afier the delivery is made For the product which storage duration
are longer than one year, please check the solderability and if the leads are rusty before they are used.
Safety Consideration
LConsideration shall be given to measuring the ambient temperature around of power supply vicinity when the
converter is installed in the end use equipment
It must be ensured the temperature does not exceed 85 degrees Celsius. This temperature limit governs the
working ambient temperature.
2,1118 input to the units must be isolated from the mains by reinforced insulation in accordance with
I'EC/EN60950 Due to the potential nonvSELV Voltages at the input, the input to those units must he considered
ahazerdous secondary voltage, outputs were considered SELV, see note 1 above.
11
DENSEl-LAMBDA
PSS-PSD SERIES
I Mounting Method
1) Mounting hole on PCB
Below is the recommended diameter of hole and land of PCB,
Type In/Output Case
Terminal Pin Tenninal Pin
Pin E10.64mm El 1.0X073mm
Hole Diameter d> 1,2mm o3 2.0mm
Land Diameter 4; 2.0mm db 3.0mm
For position of the holes, see outline drawing of the power supply.
PSS/PSD1R5 PSS/PSD3
2—¢2.o
2—«2‘0
(TOP vwa) (TOP vmw)
PSS/PSDé PSS/PSDIO
g 3556 / 7—m 2
,7 fix
W
S
m
E 3
4>-— “l
(ix
508 254 1
l 2—w2‘0
2.47 3803
A
TOP VlEW
( ) (TOP VIEW)
12
DENSEl-LAMBDA
PSS-PSD SERIES
2) Recommended Material of PCB
Recomended materials of the printed circuit board is double sided glass epoxy with through holes
(Thickness : Flrémm)
3) Output Pattern Width
When several to tens amperes of current flows to output pattern, voltage would drop and heat generation would
be higher for narrow pattern. Relationship between current and pattern width changes depending on material of
printed circuit board, thickness of conductor and temperature rise allowance. Fig. 2-1 shows an example of 3
35pm} copper glass epoxy printed circuit board. For example, when 5A of current flows and temperature rise
below 10°C are expected, pattern width shall be more than 42mm with 3Sum copper plate (generally lmm/A is
standard).
Confirmation is definitely necessary for designing because characteristics shown in Fig. 2—1 depends on
manufactures of printed circuit board.
14
sure
12
we
A to
st
g 5 we
6
5 /1o'o
4
/
a 1 2 a 4 5
Pattern Width (mm)
Fig.2-1 Characteristic of current allowance
[3
DENSEI-LAMBDA
PSS-PSD SERIES
I Before concluding module damage
Verify following items before concluding power supply damage
1) No output voltage
0 Is specified input voltage applied?
0 Are the ON/OFF control terminal (CN T terminal), output voltage-trimming terminal (TRM) correctly
connected?
0 For cases where output voltage adjustment is used, is the resistor or variable resistor setting, connections
correctly done?
0 Are there no abnormalities in the output load used?
2) Output voltage is high
0 For cases where output voltage adjustment is used, is the resistor or volume setting, connections correctly
done?
3) Output voltage is low
0 Is specified input Voltage applied?
. For cases where output voltage adjustment is used, is the resistor or variable resistor setting, connections
correctly done?
- Are there no abnonnalilies in the output load used?
4) Load regulation and line regulation is large
- Is specified input voltage applied?
0 Are the input terminals and the output terminals firmly connected?
- Is the input or output wire too thin?
5) Output ripple voltage is large
t Is the measuring method used the sane or equivalent with the specified method in the Application Notes?
0 Is the input ripple voltage value within the specified value?
l4
DENSEI-LAMBDA
