Datasheet

ManualsBrandsTDK-LAMBDA ManualsPSU ComponentsDC/DC converter (print) 5 V 8 A 40 W No. of outputs: 1 x

Features

 Single output current up to 10A

 40 watts maximum output power

 4:1 ultra wide input voltage range of 9-36 and 18-75VDC

 Six-sidedcontinuous shield

 Case grounding

 High efficiency up to 88%

 Low profile: 2.00 x2.00 x 0.40 inch (50.8x50.8x10.2 mm )

 Fixed switching frequency

 RoHS directive compliant

 Input to output isolation: 1600Vdc,min

 Over-temperature protection

 Input under-voltage protection

 Output over-voltage protection

 Over-current protection, auto-recovery

 Output short circuit protection,auto-recovery

 Remote ON/OFF

Options

 Heat sinks available for extended operation

 Remote ON/OFF logic configuration

PXF40xxWSxx Single Output DC/DC Converter

9 to 36 Vdc and 18 to 75 Vdc input, 3.3 to 15 Vdc Single Output, 40W

General Description

The PXF40-xxWSxx single output offers 40 watts of output power from a 2.00 x 2.00 x 0.4 inch package.

This series with 4:1 ultra wide input voltage of 9-36VDC and 18-75VDC, features 1600VDC of isolation,

short-circuit,over-voltage andover-temperature protection, as well as six sided shielding. All models are

particularly suited for telecommunications, industrial, mobile telecom and test equipment applications.

Table of Contents

Absolute Maximum Rating P2 Heat Sink Consideration P25

Output Specification P2 Remote ON/OFF Control P26

Input Specification P3 Mechanical Data P27

General Specification P4 Recommended Pad Layout P27

Characteristic Curves P5 Output Voltage Adjustment P28

Test Configurations P21 Remote Sense Application Circuit P29

EMC Considerations P22 Soldering Consideration P29

Input Source Impedance P24 Packaging Information P30

Output Over Current Protection P24 Part Number Structure P30

Output Over Voltage Protection P24 Safety and Installation Instruction P31

Thermal Consideration P25 MTBF and Reliability P31

Applications

 Wireless Network

 Telecom/Datacom

 Industry Control System

 Measurement Equipment

 Semiconductor Equipment

Summary of content (31 pages)

PAGE 1
PXF40xxWSxx Single Output DC/DC Converter 9 to 36 Vdc and 18 to 75 Vdc input, 3.3 to 15 Vdc Single Output, 40W Features  Single output current up to 10A  40 watts maximum output power  4:1 ultra wide input voltage range of 9-36 and 18-75VDC  Six-sided continuous shield  Case grounding  High efficiency up to 88%  Low profile: 2.00 x 2.00 x 0.40 inch (50.8x50.8x10.
PAGE 2
DataSheet 40W, Single Output Absolute Maximum Ratings Parameter Model Input Voltage Continuous Transient (100ms) Operating Ambient Temperature (with derating) Operating Case Temperature Storage Temperature 24WSxx 48WSxx 24WSxx 48WSxx All All All Min Max Unit 36 75 50 100 105 105 125 -40 -55 VDC °C °C °C Output Specifications Parameter Output Voltage (Vin = Vin(nom) ; Full Load ; TA=25°C) Voltage Adjustability Model Min Typ Max xxWS3P3 3.267 3.3 3.333 Unit xxWS05 4.95 5 5.
PAGE 3
DataSheet 40W, Single Output Input Specification Parameter Operating Input Voltage Input Current (Maximum value at Vin = Vin(nom); Full Load) Input Standby Current (Typical value at Vin = 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) Model Min Typ Max 24WSxx 9 24 36 48WSxx 18 48 75 24WS3P3 1677 24WS05 2008 24WS12 2008 24WS15 2008 48WS3P3 838 48WS05 992 48WS12 1
PAGE 4
DataSheet 40W, Single Output General Specifications Parameter Efficiency (Vin = Vin(nom) ; Full Load ; TA=25°C) Model Min Typ 24WS3P3 86 24WS05 87 24WS12 87 24WS15 87 48WS3P3 86 48WS05 88 48WS12 87 48WS15 87 Max Unit % Isolation Voltage Input to Output All Input (Output) to Case VDC 1600 1600 Isolation Resistance All 1 GΩ Isolation Capacitance All Switching Frequency All 300 KHz Weight All 60 g All 1.
PAGE 5
DataSheet 40W, Single Output Characteristic Curves All test conditions are at 25°C.The figures are for PXF40-24WS3P3. Efficiency Versus Output Current Efficiency Versus Input Voltage.
PAGE 6
DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-24WS3P3. Typical Output Ripple and Noise.
PAGE 7
DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-24WS05. Efficiency Versus Output Current Efficiency Versus Input Voltage.
PAGE 8
DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-24WS05. Typical Output Ripple and Noise.
PAGE 9
DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-24WS12. Efficiency Versus Output Current Efficiency Versus Input Voltage.
PAGE 10
DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-24WS12. Typical Output Ripple and Noise.
PAGE 11
DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C..The figures are for PXF40-24WS15. Efficiency Versus Output Current Efficiency Versus Input Voltage.
PAGE 12
DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-24WS15. Typical Output Ripple and Noise.
PAGE 13
DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25C. The figures are for PXF40-48WS3P3 Efficiency Versus Output Current Efficiency Versus Input Voltage.
PAGE 14
DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-48WS3P3. Typical Output Ripple and Noise.
PAGE 15
DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C..The figures are for PXF40-48WS05. Efficiency Versus Output Current Efficiency Versus Input Voltage.
PAGE 16
DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-48WS05. Typical Output Ripple and Noise.
PAGE 17
DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-48WS12. Efficiency Versus Output Current Efficiency Versus Input Voltage.
PAGE 18
DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-48WS12. Typical Output Ripple and Noise.
PAGE 19
DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are identical for PXF40-48WS15. Efficiency Versus Output Current Efficiency Versus Input Voltage.
PAGE 20
DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-48WS15. Typical Output Ripple and Noise.
PAGE 21
DataSheet 40W, Single Output Test Configurations Input reflected-ripple current measurement test: Component L C Value 12μH 47μF 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.
PAGE 22
DataSheet 40W, 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 the following components are needed: Value PXF40-24WSxx Voltage Component C1,C2 C3,C4 ---- ---- 1000pF 2KV Component C1,C2 C3,C4 Value 2.
PAGE 23
DataSheet 40W, 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 the following components are needed: Component C1,C3 C5,C6 L1 Value 4.7uF 1000pF 450uH Component Value C1,C2 2.2uF C3,C4 2.
PAGE 24
DataSheet 40W, Single Output 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 DC-DC 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 KZE series 47μF/100V.
PAGE 25
DataSheet 40W, Single Output Thermal Consideration The converter operates in a variety of thermal environments. 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°C.
PAGE 26
DataSheet 40W, Single Output Remote ON/OFF Control The Remote ON/OFF Pin is used to turn the converter on and off. The user must use a switch to control the logic voltage (high or low level) of the pin referenced to Vi (-). The switch can be an open collector transistor, FET or Opto-Coupler. The switch must be capable of sinking up to 0.5 mA at low-level logic voltage. Using High-level logic, the maximum allowable leakage current of the switch at 12V is 0.5 mA.
PAGE 27
DataSheet 40W, Single Output Mechanical Data 2.00 (50.8) DIA. 0.04(1.0) 1.10 (27.9) 0.400 (10.16) 3 2 1 6 5 1.800 (45.72) 2.00 (50.8) BOTTOM VIEW 8 7 4 0.10 (2.5) 0.100 (2.54) 0.300 (7.62) 0.600 (15.24) 0.800 (20.32) PIN 1 2 3 4 5 6 7 8 0.40(10.2) 0.200 (5.08) 0.200 (5.08) 0.22 (5.6) 1. All dimensions in Inches (mm) Tolerance: X.XX±0.02 (X.X±0.5) X.XXX±0.01 (X.XX±0.25) 2. Pin pitch tolerance ±0.01(0.25) 3. Pin dimension tolerance ±0.004 (0.
PAGE 28
DataSheet 40W, 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 SENSE(+) or SENSE(-) pins. With an external resistor between the TRIM and SENSE(-) pin, the output voltage set point increases. With an external resistor between the TRIM and SENSE(+) pin, the output voltage set point decreases.
PAGE 29
DataSheet 40W, Single Output Remote Sense Application Circuit The Remote Sense function, when used, regulates the voltage at the load terminals; this compensates for any voltage drop that may exist between the output of the converter and the load. The voltage compensation is limited to less than 10 % of the nominal output voltage rating of the converter. i.e.
PAGE 30
DataSheet 40W, Single Output Packaging Information 10 PCS per TUBE Part Number Structure PXF 40 – 48 WS 05 – N Max. Output Power 40Watts Negative Logic Output Voltage 3P3 : 3.3V 05 : 5V 12 : 12V 15 : 15V Input Voltage Range 24 : 9 ~ 36V 48 : 18 ~ 75V Single Output Model Number Input Range Output Voltage PXF40-24WS3P3 9 – 36 VDC 3.3 VDC PXF40-24WS05 9 – 36 VDC 5 VDC PXF40-24WS12 9 – 36 VDC 12 VDC PXF40-24WS15 9 – 36 VDC 15 VDC PXF40-48WS3P3 18 – 75 VDC 3.
PAGE 31
DataSheet 40W, 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 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.