IRAUDPS3 datasheet(2/20 Pages) IRF

2 / 20 page

Rev. 1.2

6/23/2015

International Rectifier

Page 2 of 20

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to others for manufacture or any other purpose except as specifically authorized in writing by

INTERNATIONAL RECTIFIER.

Table of Contents

INTRODUCTION........................................................................................................................3

IRS27951/2 DESCRIPTION.......................................................................................................3

EVALUATION BOARD SPECIFICATIONS ................................................................................4

3.1 Board Description ...................................................................................................................5

3.2 Schematic...............................................................................................................................6

3.3 Board PCB Layout ..................................................................................................................7

3.4 Bill of Materials .......................................................................................................................8

EVALUATION BOARD OPERATING PROCEDURE ...............................................................10

4.1 Load Connection ..................................................................................................................11

4.2 AC Input................................................................................................................................11

4.3 IRS27952 DC Supply Voltage ..............................................................................................11

4.4 Disconnect the Board ...........................................................................................................11

SYSTEM PERFORMANCE CHARACTERIZATION ................................................................12

5.1 Primary Waveforms ..............................................................................................................12

5.2 Dynamic Load Response and Regulation Waveforms..........................................................13

Test Conditions: Full Load (2A to +B and -B); No Load (0A).........................................................13

5.3 Output Waveforms with Audio Amplifier Load ......................................................................14

5.4 Output Ripple........................................................................................................................18

5.5 Efficiency ..............................................................................................................................18

5.6 Thermal Data ........................................................................................................................19

Transformer Spec.....................................................................................................................20

6.1 Electrical Diagram.................................................................................................................20

6.2 Resonant Transformer Winding Characteristics ...................................................................20

IRAUDPS3 데이터시트(PDF) 2 Page - International Rectifier