PXE30-xxWSxx Single Output DC/DC Converters
10 to 40 Vdc or 18 to 75 Vdc input, 1.5 to 15 Vdc Single Output, 30W
Features
30 WATTS MAXIMUM OUTPUT POWER
OUTPUT CURRENT UP TO 8A
STANDARD 2” X 1.6” X 0.4” PACKAGE
HIGH EFFICIENCY UP TO 88%
4:1 WIDE INPUT VOLTAGE RANGE
SIX-SIDED CONTINUOUS SHIELD
FIXED SWITCHING FREQUENCY
CE MARK MEETS 2006/95/EC, 93/68/EEC AND 2004/108/EC
UL60950-1, EN60950-1 AND IEC60950-1 LICENSED
ISO9001 CERTIFIED MANUFACTURING FACILITIES
COMPLIANT TO RoHS EU DIRECTIVE 2002/95/EC
Options
Negative logic Remote On/Off
APPLICATIONS
Wireless Network
Telecom/Datacom
Industry Control System
Measurement
Semiconductor Equipment
General Description
The PXE30-xxWSxx series offers 30 watts of output power from a 2 x 1.6 x 0.4 inch package .It has a 4:1 wide
input voltage of 10-40VDC or 18-75VDC and features 1600VDC of isolation, short-circuit and over-voltage
protection.
Table of Contents
Absolute Maximum Rating
Output Specification
Input Specification
General Specification
Characteristic Curves
Test Configurations
EMC Considerations
Input Source Impedance
Output Over Current Protection
Output Over Voltage Protection
Short Circuit Protection
Thermal Consideration
P2
P2
P3
P4
P5
P33
P34
P36
P36
P37
P37
P37
Heat Sink Consideration
Remote ON/OFF Control
Mechanical Data
Recommended Pad Layout
Output Voltage Adjustment
Soldering and Reflow Consideration
Packaging Information
Part Number Structure
Safety and Installation Instruction
MTBF and Reliability
P38
P39
P40
P41
P42
P44
P44
P45
P46
P46
DataSheet
30W, Single Output
Absolute Maximum Rating
Parameter
Model
Input Voltage
Continuous
Transient (100ms)
Input Voltage Variation
(complies with EST300 132 part 4.4)
Operating Ambient Temperature (with derating)
Operating Case Temperature
Storage Temperature
Min
Max
Unit
24WSxx
48WSxx
40
75
24WSxx
48WSxx
50
100
All
5
V/ms
85
100
105
°C
°C
°C
All
All
All
-40
-55
Vdc
Output Specification
Parameter
Output Voltage
(Vin = Vin(nom) ; Full Load ; TA=25°C)
Voltage Adjustability
Min
Typ
Max
xxWS1P5
Model
1.485
1.5
1.515
xxWS1P8
1.782
1.8
1.818
xxWS2P5
2.475
2.5
2.525
xxWS3P3
3.267
3.3
3.333
xxWS05
4.95
5
5.05
xxWS12
11.88
12
12.12
xxWS15
14.85
15
15.15
Unit
Vdc
All
-10
+10
%
All
-0.5
+0.5
%
Output Regulation
Line (Vin(min) to Vin(max) at Full Load)
Load (Min. to 100% of Full Load)
Output Ripple & Noise
-0.5
+0.5
xxWS1P5
60
Peak-to-Peak (20MHz bandwidth)
xxWS1P8
60
(Measured with a 0.1μF/50V MLCC)
xxWS2P5
60
xxWS3P3
60
xxWS05
75
xxWS12
100
xxWS15
Temperature Coefficient
Output Voltage Overshoot
(Vin(min) to Vin(max) ; Full Load ; TA=25°C)
All
mVp-p
100
-0.02
+0.02
%/°C
5
% Vo
All
0
All
250
mV
All
250
μS
Dynamic Load Response
(Vin = Vin(nom) ; TA=25°C)
Load step change from
75% to 100% or 100 to 75% of Full Load
Peak Deviation
Setting Time (VOUT-10% peak deviation)
Output Current
xxWS1P5
0
8000
xxWS1P8
0
8000
xxWS2P5
0
8000
xxWS3P3
0
6000
xxWS05
0
6000
xxWS12
0
2500
xxWS15
0
2000
mA
VER:00 Page 2 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Output Specification(Continued)
Parameter
Model
Output Over Voltage Protection
(Zener diode clamp)
Min
Typ
xxWS1P5
3.9
xxWS1P8
3.9
xxWS2P5
3.9
xxWS3P3
3.9
xxWS05
6.2
xxWS12
15
xxWS15
18
Output Over Current Protection
All
Output Short Circuit Protection
All
Max
Unit
Vdc
150
% FL.
Hiccup, automatics recovery
Input Specification
Parameter
Operating Input Voltage
Input Current
(Maximum value at Vin = Vin(nom); Full Load)
Min
Typ
Max
24WSxx
Model
10
24
40
48WSxx
18
48
75
24WS1P5
(Typical value at Vin = Vin(nom); No Load)
Under Voltage Lockout Turn-on Threshold
Vdc
658
24WS1P8
759
24WS2P5
1029
24WS3P3
994
24WS05
1506
24WS12
1506
24WS15
1488
48WS1P5
329
48WS1P8
380
48WS2P5
508
48WS3P3
497
48WS05
744
48WS12
753
48WS15
Input Standby Current
Unit
mA
744
24WS1P5
35
24WS1P8
35
24WS2P5
40
24WS3P3
50
24WS05
65
24WS12
65
24WS15
70
48WS1P5
20
48WS1P8
20
48WS2P5
25
48SW3P3
30
48WS05
30
48WS12
35
48WS15
45
mA
24WSxx
10
48WSxx
18
Vdc
VER:00 Page 3 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Input Specification(Continued)
Parameter
Model
Under Voltage Lockout Turn-off Threshold
Input Reflected Ripple Current
(5 to 20MHz, 12μH Source Impedance)
Min
Typ
24WSxx
8
48WSxx
16
All
20
All
10
Max
Unit
Vdc
mAp-p
Start Up Time
(Vin = Vin(nom) and Constant Resistive Load)
Power Up
Remote ON/OFF
mS
10
Remote ON/OFF Control
(The ON/OFF pin voltage is referenced to -VIN)
Positive Logic
DC-DC ON(Open)
DC-DC OFF(Short)
All
Negative Logic DC-DC ON(Short)
DC-DC OFF(Open)
Remote Off Input Current
All
Input Current of Remote Control Pin
All
3
12
0
1.2
0
1.2
3
12
3
-0.5
Vdc
mA
0.5
mA
Max
Unit
General Specification
Parameter
Efficiency
(Vin = Vin(nom) ; Full Load ; TA=25°C)
Model
Min
Typ
24WS1P5
80
24WS1P8
83
24WS2P5
85
24WS3P3
87
24WS05
87
24WS12
87
24WS15
88
48WS1P5
80
48WS1P8
83
48WS2P5
86
48WS3P3
87
48WS05
88
48WS12
87
48WS15
88
%
Isolation Voltage
Input to Output
All
Input to Case, Output to Case
1600
Vdc
1600
Isolation Resistance
All
Isolation Capacitance
All
1
GΩ
Switching Frequency
All
300
KHz
Weight
All
48
g
All
1.315×106
3.456×105
hours
All
115
°C
1000
pF
MTBF
Bellcore TR-NWT-000332, TC=40°C
MIL-HDBK-217F
Over Temperature Protection
VER:00 Page 4 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves
All test conditions are at 25°C.The figures are for PXE30-24WS1P5
Efficiency Versus Output Current
Efficiency Versus Input Voltage. Full Load
Power Dissipation Versus Output Current
Derating OutputCurrentVersusAmbientTemperature and
Airflow Vin=Vin(nom)
Derating OutputCurrent VersusAmbientTemperature with Heat-Sink
andAirflow, Vin = Vin(nom)
VER:00 Page 5 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-24WS1P5
Typical Output Ripple and Noise.
Transient Response to Dynamic Load Change from
Vin=Vin(nom), Full Load
100% to 75% to 100% of Full Load ; Vin=Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Using ON/OFF Voltage Start-Up and Vo Rise Characteristic
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
Conduction Emission of EN55022 Class A
Conduction Emission of EN55022 Class B
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
VER:00 Page 6 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-24WS1P8
Efficiency Versus Output Current
Efficiency Versus Input Voltage. Full Load
Power Dissipation Versus Output Current
Derating OutputCurrentVersusAmbientTemperature and
Airflow Vin=Vin(nom)
Derating OutputCurrentVersusAmbientTemperature with Heat-Sink
andAirflow, Vin = Vin(nom)
VER:00 Page 7 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-24WS1P8
Typical Output Ripple and Noise.
Transient Response to Dynamic Load Change from
Vin=Vin(nom), Full Load
100% to 75% to 100% of Full Load ; Vin=Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Using ON/OFF Voltage Start-Up and Vo Rise Characteristic
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
Conduction Emission of EN55022 Class A
Conduction Emission of EN55022 Class B
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
VER:00 Page 8 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-24WS2P5
Efficiency Versus Output Current
Efficiency Versus Input Voltage. Full Load
Power Dissipation Versus Output Current
Derating OutputCurrentVersusAmbientTemperature and
Airflow Vin=Vin(nom)
Derating OutputCurrentVersusAmbientTemperature with Heat-Sink
andAirflow,Vin = Vin(nom)
VER:00 Page 9 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-24WS2P5
Typical Output Ripple and Noise.
Transient Response to Dynamic Load Change from
Vin=Vin(nom), Full Load
100% to 75% to 100% of Full Load ; Vin=Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Using ON/OFF Voltage Start-Up and Vo Rise Characteristic
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
Conduction Emission of EN55022 Class A
Conduction Emission of EN55022 Class B
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
VER:00 Page 10 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are identical for PXE30-24WS3P3
Efficiency Versus Output Current
Efficiency Versus Input Voltage. Full Load
Power Dissipation Versus Output Current
Derating OutputCurrentVersusAmbientTemperature and
Airflow Vin=Vin(nom)
Derating OutputCurrentVersusAmbientTemperature with Heat-Sink
andAirflow,Vin = Vin(nom)
VER:00 Page 11 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-24WS3P3
Typical Output Ripple and Noise.
Transient Response to Dynamic Load Change from
Vin=Vin(nom), Full Load
100% to 75% to 100% of Full Load ; Vin=Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Using ON/OFF Voltage Start-Up and Vo Rise Characteristic
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
Conduction Emission of EN55022 Class A
Conduction Emission of EN55022 Class B
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
VER:00 Page 12 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-24WS05
Efficiency Versus Output Current
Efficiency Versus Input Voltage. Full Load
Power Dissipation Versus Output Current
Derating OutputCurrentVersusAmbientTemperature and
Airflow Vin=Vin(nom)
Derating OutputCurrentVersusAmbientTemperature with Heat-Sink
andAirflow,Vin = Vin(nom)
VER:00 Page 13 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-24WS05
Typical Output Ripple and Noise.
Transient Response to Dynamic Load Change from
Vin=Vin(nom), Full Load
100% to 75% to 100% of Full Load ; Vin=Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Using ON/OFF Voltage Start-Up and Vo Rise Characteristic
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
Conduction Emission of EN55022 Class A
Conduction Emission of EN55022 Class B
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
VER:00 Page 14 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-24WS12
Efficiency Versus Output Current
Efficiency Versus Input Voltage. Full Load
Power Dissipation Versus Output Current
Derating OutputCurrentVersusAmbientTemperature and
Airflow Vin=Vin(nom)
Derating OutputCurrentVersusAmbientTemperature with Heat-Sink
andAirflow,Vin = Vin(nom)
VER:00 Page 15 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-24WS12
Typical Output Ripple and Noise.
Transient Response to Dynamic Load Change from
Vin=Vin(nom), Full Load
100% to 75% to 100% of Full Load ; Vin=Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Using ON/OFF Voltage Start-Up and Vo Rise Characteristic
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
Conduction Emission of EN55022 Class A
Conduction Emission of EN55022 Class B
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
VER:00 Page 16 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-24WS15
Efficiency Versus Output Current
Efficiency Versus Input Voltage. Full Load
Power Dissipation Versus Output Current
Derating OutputCurrentVersusAmbientTemperature and
Airflow Vin=Vin(nom)
Derating OutputCurrentVersusAmbientTemperature with Heat-Sink
andAirflow,Vin = Vin(nom)
VER:00 Page 17 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are identical for PXE30-24WS15
Typical Output Ripple and Noise.
Transient Response to Dynamic Load Change from
Vin=Vin(nom), Full Load
100% to 75% to 100% of Full Load ; Vin=Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Using ON/OFF Voltage Start-Up and Vo Rise Characteristic
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
Conduction Emission of EN55022 Class A
Conduction Emission of EN55022 Class B
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
VER:00 Page 18 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-48WS1P5
Efficiency Versus Output Current
Efficiency Versus Input Voltage. Full Load
Power Dissipation Versus Output Current
Derating OutputCurrentVersusAmbientTemperature and
Airflow Vin=Vin(nom)
Derating OutputCurrentVersusAmbientTemperature with Heat-Sink
andAirflow,Vin = Vin(nom)
VER:00 Page 19 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-48WS1P5
Typical Output Ripple and Noise.
Transient Response to Dynamic Load Change from
Vin=Vin(nom), Full Load
100% to 75% to 100% of Full Load ; Vin=Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Using ON/OFF Voltage Start-Up and Vo Rise Characteristic
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
Conduction Emission of EN55022 Class A
Conduction Emission of EN55022 Class B
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
VER:00 Page 20 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-48WS1P8
Efficiency Versus Output Current
Efficiency Versus Input Voltage. Full Load
Power Dissipation Versus Output Current
Derating OutputCurrentVersusAmbientTemperature and
Airflow Vin=Vin(nom)
Derating OutputCurrentVersusAmbientTemperature with Heat-Sink
andAirflow,Vin = Vin(nom)
VER:00 Page 21 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-48WS1P8
Typical Output Ripple and Noise.
Transient Response to Dynamic Load Change from
Vin=Vin(nom), Full Load
100% to 75% to 100% of Full Load ; Vin=Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Using ON/OFF Voltage Start-Up and Vo Rise Characteristic
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
Conduction Emission of EN55022 Class A
Conduction Emission of EN55022 Class B
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
VER:00 Page 22 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-48WS2P5
Efficiency Versus Output Current
Efficiency Versus Input Voltage. Full Load
Power Dissipation Versus Output Current
Derating OutputCurrentVersusAmbientTemperature and
Airflow Vin=Vin(nom)
Derating OutputCurrentVersusAmbientTemperature with Heat-Sink
andAirflow,Vin = Vin(nom)
VER:00 Page 23 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-48WS2P5
Typical Output Ripple and Noise.
Transient Response to Dynamic Load Change from
Vin=Vin(nom), Full Load
100% to 75% to 100% of Full Load ; Vin=Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Using ON/OFF Voltage Start-Up and Vo Rise Characteristic
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
Conduction Emission of EN55022 Class A
Conduction Emission of EN55022 Class B
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
VER:00 Page 24 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-48WS3P3
Efficiency Versus Output Current
Efficiency Versus Input Voltage. Full Load
Power Dissipation Versus Output Current
Derating OutputCurrentVersusAmbientTemperature and
Airflow Vin=Vin(nom)
Derating OutputCurrentVersusAmbientTemperature with Heat-Sink
andAirflow,Vin = Vin(nom)
VER:00 Page 25 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-48WS3P3
Typical Output Ripple and Noise.
Transient Response to Dynamic Load Change from
Vin=Vin(nom), Full Load
100% to 75% to 100% of Full Load ; Vin=Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Using ON/OFF Voltage Start-Up and Vo Rise Characteristic
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
Conduction Emission of EN55022 Class A
Conduction Emission of EN55022 Class B
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
VER:00 Page 26 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-48WS05
Efficiency Versus Output Current
Efficiency Versus Input Voltage. Full Load
Power Dissipation Versus Output Current
Derating OutputCurrentVersusAmbientTemperature and
Airflow Vin=Vin(nom)
Derating OutputCurrentVersusAmbientTemperature with Heat-Sink
andAirflow,Vin = Vin(nom)
VER:00 Page 27 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are identical for PXE30-48WS05
Typical Output Ripple and Noise.
Transient Response to Dynamic Load Change from
Vin=Vin(nom), Full Load
100% to 75% to 100% of Full Load ; Vin=Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Using ON/OFF Voltage Start-Up and Vo Rise Characteristic
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
Conduction Emission of EN55022 Class A
Conduction Emission of EN55022 Class B
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
VER:00 Page 28 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-48WS12
Efficiency Versus Output Current
Efficiency Versus Input Voltage. Full Load
Power Dissipation Versus Output Current
Derating OutputCurrentVersusAmbientTemperature and
Airflow Vin=Vin(nom)
Derating OutputCurrentVersusAmbientTemperature with Heat-Sink
andAirflow,Vin = Vin(nom)
VER:00 Page 29 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-48WS12
Typical Output Ripple and Noise.
Transient Response to Dynamic Load Change from
Vin=Vin(nom), Full Load
100% to 75% to 100% of Full Load ; Vin=Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Using ON/OFF Voltage Start-Up and Vo Rise Characteristic
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
Conduction Emission of EN55022 Class A
Conduction Emission of EN55022 Class B
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
VER:00 Page 30 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-48WS15
Efficiency Versus Output Current
Efficiency Versus Input Voltage. Full Load
Power Dissipation Versus Output Current
Derating OutputCurrentVersusAmbientTemperature and
Airflow Vin=Vin(nom)
Derating OutputCurrentVersusAmbientTemperature with Heat-Sink
andAirflow,Vin = Vin(nom)
VER:00 Page 31 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Characteristic Curves (Continued)
All test conditions are at 25°C.The figures are for PXE30-48WS15
Typical Output Ripple and Noise.
Transient Response to Dynamic Load Change from
Vin=Vin(nom), Full Load
100% to 75% to 100% of Full Load ; Vin=Vin(nom)
Typical Input Start-Up and Output Rise Characteristic
Using ON/OFF Voltage Start-Up and Vo Rise Characteristic
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
Conduction Emission of EN55022 Class A
Conduction Emission of EN55022 Class B
Vin=Vin(nom), Full Load
Vin=Vin(nom), Full Load
VER:00 Page 32 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Test Configurations
Input reflected-ripple current measurement test:
Component
L
C
Value
12μH
220μF
Voltage
---100V
Reference
---Aluminum Electrolytic Capacitor
Peak-to-peak output ripple & noise measurement test:
Output voltage and efficiency measurement test:
Note:All measurements are taken at the module terminals.
V Io
Efficiency o
Vin I in
100%
VER:00 Page 33 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
EMC Considerations
Suggested Schematic for EN55022 Conducted Emission Class A Limits
Recommended Layout with Input Filter
To meet conducted emissions EN55022 CLASS A needed the following components:
PXE30-24WSxx
Component
C1
C3,C4
Value
6.8uF
1000pF
Voltage
50V
2KV
1812 MLCC
1808 MLCC
PXE30-48WSxx
Component
C1,C2
C3,C4
Value
2.2uF
1000pF
Voltage
100V
2KV
1812 MLCC
1808 MLCC
Reference
Reference
VER:00 Page 34 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
EMC Considerations (Continued)
Suggested Schematic for EN55022 Conducted Emission Class B Limits
Recommended Layout with Input Filter
To meet conducted emissions EN55022 CLASS B needed the following components:
PXE30-24WSxx
Component
C1,C3
C5,C6
L1
Value
6.8uF
1000pF
450uH
Voltage
50V
2KV
----
Reference
1812 MLCC
1808 MLCC
Common Choke
PXE30-48WSxx
Component
C1,C2
C3,C4
C5,C6
L1
Value
2.2uF
2.2uF
1000pF
450uH
Voltage
100V
100V
2KV
----
Reference
1812 MLCC
1812 MLCC
1808 MLCC
Common Choke
VER:00 Page 35 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
EMC Considerations (Continued)
Common Choke L1 is defined as follows:
■
L:450μH±35% / DCR:25mΩ, max
A height: 9.8 mm, Max
■ All dimensions in millimeters
Input Source Impedance
The converter should be connected to a low impedance input source. Highly inductive source impedance can
affect the stability of the converter. Input external L-C filter is recommended to minimize input reflected ripple current.
The inductor has a simulated source impedance of 12μH and the capacitor is Nippon chemi-con KY series
220μF/100V. The capacitor must be located as close as possible to the input terminals of the converter for lowest
impedance.
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 PXF40-xxSxx series.
Hiccup-mode is a method of operation in a converter whose purpose is to protect the power supply 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
current foldback 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 these devices may exceed their specified limits. A
protection mechanism has to be used to prevent these 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 converter for a given time and then tries to start up the converter again. If the over-load condition has
been removed, the converter will start up and operate normally; otherwise, the controller will see another over-current
event and will shut off the converter 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.
VER:00 Page 36 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Output Over Voltage Protection
The output over-voltage protection consists of an output Zener diode that monitors the voltage on the output
terminals. If the voltage on the output terminals exceeds the over-voltage protection threshold, then the Zener diode
clamps the output voltage.
Short Circuitry Protection
Continuous, hiccup and auto-recovery mode.
During a short circuit condition the converter will shut down. The average current during this condition will be very
low.
Thermal Consideration
The converter 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 100°C. When operating, adequate cooling must be provided to maintain the test point
temperature at or below 100°C. Although the maximum point temperature of the converter is 100°C, limiting this
temperature to a lower value will yield higher reliability.
VER:00 Page 37 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Heat Sink Consideration
Use heat-sink (7G-0011C-F) f for lowering temperature and higher reliability of the module..
All dimensions in millimeters
VER:00 Page 38 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Remote ON/OFF Control
The Remote ON/OFF Pin is used to turn on and off the DC-DC converter. The user must use a switch to control
the logic voltage (high or low level) of the ON/OFF pin, referenced to -Vi. The switch can be open collector transistor,
FET or Opto-Coupler that is capable of sinking up to 0.5 mA at low-level logic Voltage. High-level logic of the
ON/OFF signal (maximum voltage): the allowable leakage current of the switch at 12V is 0.5mA.
Remote ON/OFF Implementation Circuits
Isolated-Clontrol Remote ON/OFF
Level Control Using TTL Output
Level Control Using Line Voltage
There are two remote control options available, Positive Logic and Negative Logic.
a. Positive logic:
PXE30-xxWSxx module is turned off PXE30-xxWSxx module is turned on
using Low-level logic
b.
using High-level logic
Negative logic:
PXE30-xxWSxx module is turned on PXE30-xxWSxx module is turned off
using Low-level logic
using High-level logic
VER:00 Page 39 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Mechanical Data
PIN CONNECTION
PIN
1
2
4
5
6
7
8
FUNCTION
+INPUT
-INPUT
CTRL
NO PIN
+OUTPUT
-OUTPUT
TRIM
EXTERNAL OUTPUT TRIMMING
Output can be externally trimmed by using
the method shown below.
TRIM UP
TRIM DOWN
7
8
RU
8
RD
6
VER:00 Page 40 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Recommended Pad Layout
VER:00 Page 41 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Output Voltage Adjustment
Output voltage set point adjustment allows the user to increase or decrease the output voltage set point of a
module. This is accomplished by connecting an external resistor between the TRIM pin and either the Vo(+) or Vo(-)
pins. With an external resistor between the TRIM and Vo(-) pin, the output voltage set point increases. With an external
resistor between the TRIM and Vo(+) pin, the output voltage set point decreases.
TRIM UP
TRIM DOWN
7
8
RU
RD
6
8
TRIM TABLE
PXE30-xxWS1P5
Trim up (%)
1
2
3
VOUT (Volts)=
RU (K Ohms)=
4
5
1.515
1.53
4.578
2.605
6
7
8
9
1.545
1.56
1.227
0.808
10
1.575
1.59
1.605
1.62
1.635
1.65
0.557
0.389
0.27
0.18
0.11
0.054
Trim down (%)
1
2
3
4
5
6
7
8
9
10
VOUT (Volts)=
1.485
1.47
1.455
1.44
1.425
1.41
1.395
1.38
1.365
1.35
RD (K Ohms)=
5.704
2.571
1.527
1.005
0.692
0.483
0.334
0.222
0.135
0.065
PXE30-xxWS1P8
Trim up (%)
1
2
3
4
5
6
7
8
9
10
VOUT (Volts)=
1.818
1.836
1.854
1.872
1.89
1.908
1.926
1.944
1.962
1.98
RU (K Ohms)=
11.639
5.205
3.06
1.988
1.344
0.915
0.609
0.379
0.2
0.057
Trim down (%)
1
2
3
4
5
6
7
8
9
10
VOUT (Volts)=
1.782
1.764
1.746
1.728
1.71
1.692
1.674
1.656
1.638
1.62
RD (K Ohms)=
14.66
6.57
3.874
2.525
1.716
1.177
0.792
0.503
0.278
0.098
PXE30-xxWS2P5
Trim up (%)
1
2
3
4
5
6
7
8
9
10
VOUT (Volts)=
2.525
2.55
2.575
2.6
2.625
2.65
2.675
2.7
2.725
2.75
RU (K Ohms)=
37.076
16.675
9.874
6.474
4.434
3.074
2.102
1.374
0.807
0.354
Trim down (%)
1
2
3
4
5
6
7
8
9
10
VOUT (Volts)=
2.475
2.45
2.425
2.4
2.375
2.35
2.325
2.3
2.275
2.25
RD (K Ohms)=
49.641
22.481
13.428
8.902
6.186
4.375
3.082
2.112
1.358
0.754
PXE30-xxWS3P3
Trim up (%)
1
2
3
4
5
6
7
8
9
10
VOUT (Volts)=
3.333
3.366
3.399
3.432
3.465
3.498
3.531
3.564
3.597
3.630
RU (K Ohms)=
57.930
26.165
15.577
10.283
7.106
4.988
3.476
2.341
1.459
0.753
Trim down (%)
1
2
3
4
5
6
7
8
9
10
VOUT (Volts)=
3.267
3.234
3.201
3.168
3.135
3.102
3.069
3.036
3.003
2.970
RD (K Ohms)=
69.470
31.235
18.490
12.117
8.294
5.745
3.924
2.559
1.497
0.647
VER:00 Page 42 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Output Voltage Adjustment(Continued)
PXE30-xxWS05
Trim up (%)
1
2
3
4
5
6
7
8
9
10
VOUT (Volts)=
5.050
5.100
5.150
5.200
5.250
5.300
5.350
5.400
5.450
5.500
RU (K Ohms)=
36.570
16.580
9.917
6.585
4.586
3.253
2.302
1.588
1.032
0.588
Trim down (%)
1
2
3
4
5
6
7
8
9
10
VOUT (Volts)=
4.950
4.900
4.850
4.800
4.750
4.700
4.650
4.600
4.550
4.500
RD (K Ohms)=
45.533
20.612
12.306
8.152
5.660
3.999
2.812
1.922
1.230
0.676
PXE30-xxWS12
Trim up (%)
1
2
3
4
5
6
7
8
9
10
VOUT (Volts)=
12.120
12.240
12.360
12.480
12.600
12.720
12.840
12.960
13.080
13.200
RU (K Ohms)=
367.910
165.950
98.636
64.977
44.782
31.318
21.701
14.488
8.879
4.391
Trim down (%)
1
2
3
4
5
6
7
8
9
10
VOUT (Volts)=
RD (K Ohms)=
11.880
11.760
11.640
460.990
207.950
123.600
11.520
81.423
11.400
56.118
11.280
11.160
11.040
39.249
27.199
18.162
10.920
10.800
11.132
5.509
PXE30-xxWS15
Trim up (%)
1
2
3
4
5
6
7
8
9
10
VOUT (Volts)=
15.150
15.300
15.450
15.600
15.750
15.900
16.050
16.200
16.350
16.500
RU (K Ohms)=
404.180
180.590
106.060
68.796
46.437
31.531
20.883
12.898
6.687
1.718
Trim down (%)
1
2
3
4
5
6
7
8
9
10
VOUT (Volts)=
14.850
14.700
14.550
14.400
14.250
14.100
13.950
13.800
13.650
13.500
RD (K Ohms)=
499.820
223.410
131.270
85.204
57.563
39.136
25.974
16.102
8.424
2.282
VER:00 Page 43 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Soldering and Reflow Consideration
Lead free wave solder profile for PXE30-xxWSxx DIP type
Zone
Preheat zone
Reference Parameter
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.: 380-400 °C
Packaging Information
12 PCS per TUBE
VER:00 Page 44 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Part Number Structure
PXE 30 – 24 WS 12
Max. Output Power
30Watts
Output Voltage
1P5W : 1.5Vdc
1P8W : 1.8 Vdc
2P5W : 2.5 Vdc
3P3W : 3.3 Vdc
05W : 5Vdc
12W : 12Vdc
15W : 15Vdc
Input Voltage Range
24 : 10 ~ 40V
48 : 18 ~ 75V
Single Output
Model
Number
Input
Range
Output
Voltage
PXE30-24WS1P5
10 – 40 VDC
1.5 VDC
PXE30-24WS1P8
10 – 40 VDC
1.8 VDC
PXE30-24WS2P5
10 – 40 VDC
2.5 VDC
PXE30-24WS3P3
10 – 40 VDC
3.3 VDC
PXE30-24WS05
10 – 40 VDC
5 VDC
PXE30-24WS12
10 – 40 VDC
12 VDC
PXE30-24WS15
10 – 40 VDC
15 VDC
PXE30-48WS1P5
18 – 75 VDC
1.5 VDC
PXE30-48WS1P8
18 – 75 VDC
1.8 VDC
PXE30-48WS2P5
18 – 75 VDC
2.5 VDC
PXE30-48WS3P3
18 – 75 VDC
3.3 VDC
PXE30-48WS05
18 – 75 VDC
5 VDC
PXE30-48WS12
18 – 75 VDC
12 VDC
PXE30-48WS15
18 – 75 VDC
15 VDC
Note 1. Typical value at nominal input voltage and no load.
Note 2. Maximum value at nominal input voltage and full load.
Note 3. Typical value at nominal input voltage and full load.
Output Current
Min. load
0mA
0mA
0mA
0mA
0mA
0mA
0mA
0mA
0mA
0mA
0mA
0mA
0mA
0mA
(3)
Input Current
(1)
Full Load No load
8000mA
35mA
8000mA
35mA
8000mA
40mA
6000mA
50mA
6000mA
65mA
2500mA
65mA
2000mA
70mA
8000mA
20mA
8000mA
20mA
8000mA
25mA
6000mA
30mA
6000mA
30mA
2500mA
35mA
2000mA
45mA
(2)
Full Load
658mA
759mA
1029mA
994mA
1506mA
1506mA
1488mA
329mA
380mA
508mA
497mA
744mA
753mA
744mA
Eff
(%)
80
83
85
87
87
87
88
80
83
86
87
88
87
88
VER:00 Page 45 of 46 Issued Date：2009/03/02
DataSheet
30W, Single Output
Safety and Installation Instruction
Fusing Consideration
Caution: This converter is not internally fused. An input line fuse must always be used.
This encapsulated converter 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. The safety
agencies require a slow-blow fuse with maximum rating of 6A. 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.
MTBF and Reliability
The MTBF of PXE30-xxWSxx DC/DC converter has been calculated using
Bellcore TR-NWT-000332 Case I: 50% stress, Operating Temperature at 40°C (Ground fixed and controlled
6
environment ). The resulting figure for MTBF is 1.315×10 hours.
MIL-HDBK-217F NOTICE2 FULL LOAD, Operating Temperature at 25°C ℃. The resulting figure for MTBF is
5
3.456×10 hours.
VER:00 Page 46 of 46 Issued Date：2009/03/02
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