PXC-M10xxWS Application Note
PXC-M10xxW Single Output Series: DC-DC Converter Module
9 ~ 36 VDC and 18~ 75 VDC input; 3.3 to 24 VDC Single Output
10 Watts Output Power
FEATURES
 SINGLE OUTPUT UP TO 2.5A
 REINFORCED INSULATION FOR 250VAC WORKING
VOLTAGE
 CLEARANCE AND CREEPAGE DISTANCE :8.0mm/2MOPP
 5000VAC INPUT TO OUTPUT 2MOPP ISOLATION
 NO MINIMUM LOAD REQUIRED
 HIGH EFFICIENCY UP TO 89%
 BUILT-IN EMI CLASS A FILTER
 2μA PATIENT LEAKAGE CURRENT
 SMALL SIZE: 1.250.800.40 INCH
 4:1 ULTRA WIDE INPUT VOLTAGE RANGE
 FIXED SWITCHING FREQUENCY
 INPUT UNDER-VOLTAGE PROTECTION
 OUTPUT OVER-VOLTAGE PROTECTION
 OVER-CURRENT PROTECTION
 OUTPUT SHORT CIRCUIT PROTECTION
 REMOTE ON/OFF
 COMPLIANT TO RoHS II & REACH
CE MARKED
SAFETY APPROVALS:
ANSI/AAMI ES60601-1
EN60601-1
IEC60601-1
APPLICATIONS
 MEDICAL EQUIPMENT
 TELECOM/DATACOM
 INDUSTRY CONTROL SYSTEM
 MEASUREMENT EQUIPMENT
 SEMICONDUCTOR EQUIPMENT
 PV POWER SYSTEM
 IGBT GATE DRIVER
OPTIONS
 PIN CONNECTION
 REMOTE ON/OFF
 TRIM
GENERAL DESCRIPTIONS
The PXC-M10W series offer 10 watts of output power from a 1.25 x 0.80 x 0.40 inch package. PXC-M10W series have 4:1 wide input
voltage of 9~36VDC and 18~75VDC. The PXC-M10W has features 5000VAC of isolation, short circuit protection, over-current
protection and over-voltage protection. All models are particularly suited to IGBT isolated power supplies, measurement equipment,
telecommunications, industrial and medical equipment applications.
PXC-M10xxW-SINGLE
Contents
Output Specifications
Input Specifications
General Specifications
Environmental Specifications
EMC Characteristics
Characteristic Curves
PXC-M10-24WS3P3
PXC-M10-24WS05
PXC-M10-24WS12
PXC-M10-24WS15
PXC-M10-24WS24
PXC-M10-48WS3P3
PXC-M10-48WS05
PXC-M10-48WS12
PXC-M10-48WS15
PXC-M10-48WS24
Output Voltage Adjustment
Input Source Impedance
Output Over Current Protection
Output Short Circuitry Protection
Output Over Voltage Protection
Thermal Considerations
Remote On/off Control
EMS Considerations
Mechanical Data
Recommended Pad Layout
Soldering Considerations
Packaging Information
Part Number Structure
Safety and Installation Instruction
MTBF and Reliability
2
Application Note
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3
4
5
5
5
6
8
10
12
14
16
18
20
22
24
26
27
28
28
28
28
29
30
31
32
32
33
33
33
33
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Output Specifications
Parameter
Output Voltage
(Vin(nom); Full Load; Ta=25℃)
Output Regulation
Line (Vin(min) to Vin(max); Full Load)
Load (0% to 100% of Full Load)
Output Ripple and Noise
Peak to Peak (20MHz Bandwidth)
With a 10μF/25V X7R MLCC
With a 4.7μF/50V X7R MLCC
Voltage adjustability (see page 26)
(Only for B-type Pin connection option)
Temperature Coefficient
Output Voltage Overshoot
(Vin,min to Vin,max; Full Load; Ta=25℃)
Dynamic Load Response
(Vin= Vin(nom); Ta=25℃)
Load step change from
75% to 100% or 100 to 75% of Full Load
Peak Deviation
Setting Time (Vo<10% peak deviation)
Output Current
Output Capacitance Load
Output Over Voltage Protection (see page 28)
Output Over Current Protection (see page 28)
(% of Iout rated; Hiccup mode)
Output Short Circuit Protection (see page 28)
3
Application Note
Model
xxWS3P3
xxWS05
xxWS12
xxWS15
xxWS24
Min
3.267
4.95
11.88
14.85
23.76
All
-0.2
-0.2
xxWS3P3
xxWS05
xxWS12
xxWS15
xxWS24
xxWS3P3-T
xxWS05-T
xxWS12-T
xxWS15-T
xxWS24-T
All
Typ
3.3
5
12
15
24
30
30
40
40
75
75
100
100
mVp-p
50
100
+10
+10
+10
+20
+20
+0.02
% of Vout
3
% of Vout
-10
-10
-10
-10
-10
-0.02
All
All
xxWS3P3
xxWS05
xxWS12
xxWS15
xxWS24
xxWS3P3
xxWS05
xxWS12
xxWS15
xxWS24
xxWS3P3
xxWS05
xxWS12
xxWS15
xxWS24
3
250
www.us.tdk-lambda.com/lp
VDC
%
0
All
Unit
+0.2
+0.2
All
All
Max
3.333
5.05
12.12
15.15
24.24
0
0
0
0
0
% of Vout
μs
2500
2000
830
670
416
3000
2500
430
350
125
5
7.0
16
22.0
34.5
3.7
5.6
13.5
18.3
29.1
%/℃
150
mA
μF
VDC
% of FL
Continuous, automatic recovery
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Input Specifications
Parameter
Operating Input Voltage
Continuous
Transient (3sec,max)
Input Standby Current
(Typ. value at Vin(nom); No Load)
Under Voltage Lockout Turn-on Threshold
Under Voltage Lockout Turn-off Threshold
Input reflected ripple current
(5 to 20MHz, 12μH source impedance)
Start Up Time
(Vin(nom) and constant resistive load)
Power up
Remote ON/OFF
Remote ON/OFF Control Type B (see page 29)
(The Ctrl pin voltage is referenced to negative input)
Ctrl pin Low Voltage, Module ON
Ctrl pin High Voltage, Module OFF
Input Current of Remote Control Pin
Remote Off State Input Current
4
Application Note
Model
Min
Typ
Max
24WSxx
48WSxx
24WSxx
48WSxx
24WS3P3
24WS05
24WS12
24WS15
24WS24
48WS3P3
48WS05
48WS12
48WS15
48WS24
24WSxx
48WSxx
24WSxx
48WSxx
9
18
24
48
36
75
50
100
6
6
6
6
6
4
4
4
4
4
All
All
www.us.tdk-lambda.com/lp
-0.5
VDC
mA
9
18
VDC
8
16
VDC
20
mAp-p
ms
30
30
xxWSxx-P
Unit
Short or 0 ~ 1.2VDC
Open or 2.2 ~ 12VDC
1
2.5
VER: 03
mA
mA
2015/05/15
PXC-M10xxW-SINGLE
General Specifications
Parameter
Efficiency
(Vin(nom); Full Load; Ta=25℃)
Isolation voltage (1 minute)
Input to Output
Isolation capacitance
Leakage current (240VAC,60Hz)
Switching Frequency
Clearance/Creepage
Weight
MTBF(see page 33)
MIL-HDBK-217F Ta=25ºC, Full load
Safety Approvals
Case Material
Base Material
Potting Material
Model
24WS3P3
24WS05
24WS12
24WS15
24WS24
48WS3P3
48WS05
48WS12
48WS15
48WS24
All
Min
Typ
83
86.5
89
89
89
82.5
86.5
89
89
88.5
Max
Unit
%
VAC
5000
All
All
All
All
All
12
270
8
17
2
330
300
pF
μA
kHz
mm
g
14.0
All
3.849 x 106
ANSI/AAMI ES60601-1
IEC60601-1, EN60601-1
Non-conductive black plastic
Non-conductive black plastic
Silicone (UL94 V-0)
All
All
All
hours
Environmental Specifications
Parameter
Operating Ambient Temperature
Without Derating
With Derating
Storage Temperature
Thermal Impedance (20LFM)
Relative humidity
Thermal Shock
Vibration
Model
Min
All
-40
77
-55
All
All
All
All
All
Typ
Max
Unit
77
105
125
℃
18
5
95
MIL-STD-810F
MIL-STD-810F
℃
℃/W
% RH
EMC Characteristics
Characteristic
EMI
Standard
EN55011
EN55022
FCC Part 18
EN55011
EN55022
FCC Part 18
ESD
EN61000-4-2
Radiated Immunity
Fast Transient(see page 30)
Surge(see page 30)
Conducted Immunity
EN61000-4-3
EN61000-4-4
EN61000-4-5
EN61000-4-6
5
Application Note
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Condition
Level
Module stand-alone
Class A
With external input filter
Class B
Air
Contact
±8kV
±6kV
10V/m
±2kV
±2kV
10V r.m.s
VER: 03
Perf. Criteria A
Perf. Criteria A
Perf. Criteria A
Perf. Criteria A
Perf. Criteria A
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves
All test conditions are at 25℃.The figures are
6
for PXC-M10-24WS3P3
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage
Full Load
Derating Output Current versus Ambient Temperature and Airflow
Vin(nom)
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
7
for PXC-M10-24WS3P3
Typical Output Ripple and Noise.
Vin(nom); Full Load
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Using ON/OFF Voltage Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Application Note
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VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
8
for PXC-M10-24WS05
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage
Full Load
Derating Output Current versus Ambient Temperature and Airflow
Vin(nom)
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
9
for PXC-M10-24WS05
Typical Output Ripple and Noise.
Vin(nom); Full Load
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Using ON/OFF Voltage Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
10
for PXC-M10-24WS12
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage
Full Load
Derating Output Current versus Ambient Temperature and Airflow
Vin(nom)
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
11
for PXC-M10-24WS12
Typical Output Ripple and Noise.
Vin(nom); Full Load
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Using ON/OFF Voltage Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
12
for PXC-M10-24WS15
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage
Full Load
Derating Output Current versus Ambient Temperature and Airflow
Vin(nom)
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
13
for PXC-M10-24WS15
Typical Output Ripple and Noise.
Vin(nom); Full Load
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Using ON/OFF Voltage Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
14
for PXC-M10-24WS24
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage
Full Load
Derating Output Current versus Ambient Temperature and Airflow
Vin(nom)
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
15
for PXC-M10-24WS24
Typical Output Ripple and Noise.
Vin(nom); Full Load
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Using ON/OFF Voltage Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves
All test conditions are at 25℃.The figures are
16
for PXC-M10-48WS3P3
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage
Full Load
Derating Output Current versus Ambient Temperature and Airflow
Vin(nom)
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
17
for PXC-M10-48WS3P3
Typical Output Ripple and Noise.
Vin(nom); Full Load
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Using ON/OFF Voltage Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
18
for PXC-M10-48WS05
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage
Full Load
Derating Output Current versus Ambient Temperature and Airflow
Vin(nom)
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
19
for PXC-M10-48WS05
Typical Output Ripple and Noise.
Vin(nom); Full Load
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Using ON/OFF Voltage Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
20
for PXC-M10-48WS12
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage
Full Load
Derating Output Current versus Ambient Temperature and Airflow
Vin(nom)
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
21
for PXC-M10-48WS12
Typical Output Ripple and Noise.
Vin(nom); Full Load
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Using ON/OFF Voltage Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
22
for PXC-M10-48WS15
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage
Full Load
Derating Output Current versus Ambient Temperature and Airflow
Vin(nom)
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
23
for PXC-M10-48WS15
Typical Output Ripple and Noise.
Vin(nom); Full Load
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Using ON/OFF Voltage Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
24
for PXC-M10-48WS24
Efficiency versus Output Current
Power Dissipation versus Output Current
Efficiency versus Input Voltage
Full Load
Derating Output Current versus Ambient Temperature and Airflow
Vin(nom)
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Characteristic Curves (Continued)
All test conditions are at 25℃.The figures are
25
for PXC-M10-48WS24
Typical Output Ripple and Noise.
Vin(nom); Full Load
Transient Response to Dynamic Load Change from
100% to 75% to 100% of Full Load; Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Using ON/OFF Voltage Start-Up and Output Rise Characteristic
Vin(nom); Full Load
Application Note
www.us.tdk-lambda.com/lp
VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Output Voltage Adjustment
Output voltage adjustment is an optional function for PXC-M10-xxWSxx-xT.
It allows the user to increase or decrease the output voltage of the module. This is accomplished by connecting an external resistor
between the TRIM pin and either the +Vout or -Vout pins. With an external resistor between the TRIM and -OUTPUT pin, the output
voltage increases. With an external resistor between the TRIM and +OUTPUT pin, the output voltage decreases. The external TRIM
resistor needs to be at least 1/16W of rated power.
TRIM-UP
TRIM-DOWN
Output voltage adjustment configurations
TRIM TABLE
xxWS3P3-xT
Trim-Up
Vout
RU
(%)
(V)
(kΩ)
Trim-Down
Vout
RD
(%)
(V)
(kΩ)
TRIM-UP
1
3.333
385.837
2
3.366
191.894
3
3.399
127.246
4
3.432
94.922
5
3.465
75.527
6
3.498
62.598
7
3.531
53.362
8
3.564
46.436
9
3.597
41.049
10
3.630
36.739
3
3.201
33.554
4
3.168
23.378
5
3.135
17.273
6
3.102
13.202
7
3.069
10.295
8
3.036
8.114
9
3.003
6.418
10
2.970
5.061
3
5.148
82.734
4
5.198
61.538
5
5.248
48.820
6
5.298
40.342
7
5.348
34.286
8
5.398
29.744
9
5.448
26.211
10
5.498
23.385
3
4.848
78.066
4
4.798
56.762
5
4.748
43.980
6
4.698
35.458
7
4.648
29.371
8
4.598
24.806
9
4.548
21.255
10
4.498
18.415
3
12.361
64.148
4
12.481
46.836
5
12.601
36.449
6
12.721
29.524
7
12.841
24.578
8
12.961
20.868
9
13.081
17.983
10
13.201
15.674
3
11.641
248.985
4
11.521
182.964
5
11.401
143.351
6
11.281
116.943
7
11.161
98.079
8
11.041
83.932
9
10.921
72.928
10
10.801
64.126
TRIM-DOWN
xxWS05-xT
Trim-Up
Vout
RU
(%)
(V)
(kΩ)
Trim-Down
Vout
RD
(%)
(V)
(kΩ)
1
3.267
114.963
2
3.234
53.906
TRIM-UP
1
5.048
252.301
2
5.098
125.126
TRIM-DOWN
xxWS12-xT
Trim-Up
Vout
RU
(%)
(V)
(kΩ)
Trim-Down
Vout
RD
(%)
(V)
(kΩ)
1
4.948
248.499
2
4.898
120.674
TRIM-UP
1
12.121
202.645
2
12.241
98.772
TRIM-DOWN
26
1
11.881
777.155
Application Note
2
11.761
381.028
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VER: 03
2015/05/15
PXC-M10xxW-SINGLE
Output Voltage Adjustment (Continued)
TRIM TABLE (Continued)
xxWS15-xT
Trim-Up
Vout
RU
(%)
(V)
(kΩ)
Trim-Down
Vout
RD
(%)
(V)
(kΩ)
TRIM-UP
2
15.305
77.962
4
15.605
36.431
6
15.905
22.587
8
16.205
15.665
10
16.505
11.512
12
16.806
8.744
14
17.106
6.766
16
17.406
5.283
18
17.706
4.129
20
18.006
3.206
3
14.555
262.859
4
14.405
193.369
5
14.255
151.675
6
14.105
123.879
7
13.955
104.025
8
13.805
89.135
9
13.654
77.553
10
13.504
68.288
6
25.444
83.866
8
25.924
59.650
10
26.404
45.120
12
26.884
35.433
14
27.364
28.514
16
27.844
23.325
18
28.324
19.289
20
28.804
16.060
3
23.283
1603.934
4
23.043
1185.701
5
22.803
934.761
6
22.563
767.467
7
22.323
647.972
8
22.083
558.350
9
21.843
488.645
10
21.603
432.880
TRIM-DOWN
xxWS24-xT
Trim-Up
Vout
RU
(%)
(V)
(kΩ)
Trim-Down
Vout
RD
(%)
(V)
(kΩ)
1
14.855
818.776
2
14.705
401.838
TRIM-UP
2
24.484
277.598
4
24.964
132.299
TRIM-DOWN
1
23.764
4949.803
2
23.524
2440.402
Input Source Impedance
The power module should be connected to a low impedance input source. Highly inductive source impedance can affect the stability of
the power module. Install choke (LSIM) to simulate the impedance of power source. External input capacitors CFILTER serve primarily as
energy-storage elements, minimizing line voltage variations caused by transient IR drops in conductors from backplane to the DC/DC.
The capacitor must as close as possible to the input terminals of the power module for lower impedance. The input reflected-ripple
current measurement configuration is shown below:
Input reflected-ripple current measurement setup
PXC-M10-24WSxx
Component
LSIM
CFILTER
Value
12μH
47μF
Voltage
---100V
Reference
Inductor
Nippon chemi-con KY-series
Value
12μH
47μF
Voltage
---100V
Reference
Inductor
Nippon chemi-con KY-series
PXC-M10-48WSxx
Component
LSIM
CFILTER
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PXC-M10xxW-SINGLE
Output Over Current Protection
When excessive output currents occur in the system, circuit protection is required on all power supplies. Normally, overload current is
maintained at approximately 150 percent of rated current for PXC-M10W SERIES.
Hiccup-mode is a method of operation in a power supply whose purpose is to protect the power supply from being damaged during an
over-current fault condition. It also enables the power supply to restart when the fault is removed. There are other ways of protecting the
power supply when it is over-loaded, such as the maximum current limiting or current fold-back methods.
One of the problems resulting from over current is that excessive heat may be generated in power devices; especially MOSFET and
Schottky diodes and the temperature of those devices may exceed their specified limits. A protection mechanism has to be used to
prevent those power devices from being damaged.
The operation of hiccup is as follows. When the current sense circuit sees an over-current event, the controller shuts off the power
supply for a given time and then tries to start up the power supply again. If the over-load condition has been removed, the power supply
will start up and operate normally; otherwise, the controller will see another over-current event and shut off the power supply again,
repeating the previous cycle. Hiccup operation has none of the drawbacks of the other two protection methods, although its 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.
The hiccup operation can be done in various ways. For example, one can start hiccup operation any time an over-current event is
detected; or prohibit hiccup during a designated start-up is usually larger than during normal operation and it is easier for an
over-current event is detected; or prohibit hiccup during a designated start-up interval (usually a few milliseconds). The reason for the
latter operation is that during start-up, the power supply needs to provide extra current to charge up the output capacitor. Thus the
current demand during start-up is usually larger than during normal operation and it is easier for an over-current event to occur. If the
power supply starts to hiccup once there is an over-current, it might never start up successfully. Hiccup mode protection will give the
best protection for a power supply against over current situations, since it will limit the average current to the load at a low level, so
reducing power dissipation and case temperature in the power devices.
Output Short Circuitry Protection
Continuous 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.
Output Over Voltage Protection
The output over-voltage protection consists of circuitry that internally clamps the output voltage. If a more accurate output over-voltage
protection scheme is required then this should be implemented externally via use of the remote on/off pin.
Thermal Considerations
The power module operates in a variety of thermal environments; however, sufficient cooling should be provided to help ensure reliable
operation of the unit. Heat is removed by conduction, convection, and radiation to the surrounding environment. Proper cooling can be
verified by measuring the point as shown in the figure below. The temperature at this location should not exceed 105℃. When
operating, adequate cooling must be provided to maintain the test point temperature at or below 105℃. Although the maximum point
temperature of the power modules is 105℃, limiting this temperature to a lower value enhances the reliability.
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PXC-M10xxW-SINGLE
Remote On/off Control
Only for B-type pin connection option with suffix -P,. Ex.: PXC-M10-24WS05-P
The module is ON during logic Low and turns OFF during logic High. The Ctrl pin is an open collector/drain logic input signal that is
referenced to (-)Vin. If not using the remote on/off feature, the Ctrl and (-)Vin pins should be connected together (shorted) or apply
0-1.2V between these two pins for the module to be ON.
Remote ON/OFF Implementation
Isolated-Control Remote ON/OFF
Level Control Using TTL Output
Level Control Using Line Voltage
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PXC-M10xxW-SINGLE
EMS Considerations
The PXC-M10W series can meet Fast Transient EN61000-4-4 and Surge EN61000-4-5 performance criteria A with external
components connected to the input terminals of the module. Please see the following schematic:
SURGE / Fast Transient
PXC-M10-24WSxx
Component
C1
Value
470μF
Voltage
50V
Reference
Nippon chemi-con KY-series
Value
330μF
Voltage
100V
Reference
Nippon chemi-con KY-series
PXC-M10-48WSxx
Component
C1
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PXC-M10xxW-SINGLE
Mechanical Data
PXC-M10-xxWSxx A Type
PIN CONNECTION
PIN
1
11
12
13
15
23
24
1.
2.
3.
4.
PXC-M10-xxWSxx B Type
3.
4.
Application Note
All dimensions in Inch (mm)
Tolerance:
X.XX±0.02 (X.X±0.5)
X.XXX±0.01 (X.XX±0.25)
Pin pitch tolerance ±0.01 (0.25)
Pin dimension tolerance ±0.004 (0.1)
PIN CONNECTION
PIN
FUNCTION
1
Ctrl (Option) / No pin*
2
- Vin
10
Trim (Option) / No pin*
11
No pin / NC**
14
+Vout
16
-Vout
22
+Vin
23
+Vin
* If no Ctrl or Trim option, there is
no pin on the corresponding pin number.
** Pin 11 is “No pin” for
PXC-M10-xxSxxWB-T
PXC-M10-xxSxxWB-PT
Pin 11 is “NC” for
PXC-M10-xxSxxWB
PXC-M10-xxSxxWB-P
1.
2.
31
FUNCTION
+ Vin
No pin
-Vout
+Vout
No pin
- Vin
- Vin
www.us.tdk-lambda.com/lp
All dimensions in Inch (mm)
Tolerance:
X.XX±0.02 (X.X±0.5)
X.XXX±0.01 (X.XX±0.25)
Pin pitch tolerance ±0.01 (0.25)
Pin dimension tolerance ±0.004 (0.1)
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PXC-M10xxW-SINGLE
Recommended Pad Layout
PXC-M10-xxWSxx A Type
PXC-M10-xxWSxx B Type
1.
2.
3.
All dimensions in Inch (mm)
Tolerance:
X.XX±0.02 (X.X±0.5)
X.XXX±0.01 (X.XX±0.25)
Pin pitch tolerance ±0.01 (0.25)
Pin dimension tolerance ±0.004 (0.1)
Soldering Considerations
Lead free wave solder profile
Reference Solder: Sn-Ag-Cu;Sn-Cu
Hand Soldering (Reference):
Soldering iron: Power 150W
Soldering Time:3~6 sec
Temp:410~430℃
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PXC-M10xxW-SINGLE
Packaging Information
Tube
10pcs converters in a Tube
All dimensions in inches (mm)
Part Number Structure
PXC-M10 Series Name
48W
S
05
A
Input Voltage
(VDC)
24: 9~36
48: 18~75
Output
Quantity
S:Single
Output Voltage
(VDC)
3P3: 3.3
05: 5
12: 12
15: 15
24: 24
05: ±5
12: ±12
15: ±15
Pin Connection
Option
A: A type
: B type
D: Dual
Model
Number
PXC-M10-24WS3P3A/
PXC-M10-24WS05A/
PXC-M10-24WS12A/
PXC-M10-24WS15A/
PXC-M10-24WS24A/
PXC-M10-48WS3P3A/
PXC-M10-48WS05A/
PXC-M10-48WS12A/
PXC-M10-48WS15A/
PXC-M10-48WS24A/
-
P
T
Remote On/Off
Trim
Option
Option
: No On/Off control : No Trim
P: Remote On/Off
T: Trim
(Only for B type
(Only for B type
Pin connection)
Pin connection)
Input Range
Output Voltage
Output Current
@Full Load
Input Current
@ No Load
Efficiency
Maximum
Capacitor Load
VDC
VDC
3.3
5
12
15
24
3.3
5
12
15
24
mA
2500
2000
830
670
416
2500
2000
830
670
416
mA
6
6
6
6
6
4
4
4
4
4
%
83
86.5
89
89
89
82.5
86.5
89
89
88.5
μF
3000
2500
430
350
125
3000
2500
430
350
125
9 ~ 36
18 ~ 75
Safety and Installation Instructions
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 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. See suggested values below:
Model
PXC-M10-24WSxx
PXC-M10-48WSxx
Fuse Rating
(A)
2
1
Fuse Type
Slow-Blow
Slow-Blow
Based on the information provided in this data sheet on inrush energy and maximum dc input current at low Vin.
MTBF and Reliability
The MTBF has been calculated using:
MIL-HDBK 217F NOTICE2 FULL LOAD, Operating Temperature at 25℃. The resulting figure for MTBF is 3.849×106 hours.
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Application Note
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VER: 03
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