LNK500P_1 Datasheet, PDF (2/19 Pages) Power Integrations, Inc. – 2.4W Cell Phone Charger

DER-12
2.4W Cell Phone Charger using LNK500P
February 4, 2004
Table Of Contents
1 Introduction................................................................................................................. 4
2 Power Supply Specification ........................................................................................ 4
3 Schematic................................................................................................................... 5
4 PCB Layout ................................................................................................................ 5
5 Bill Of Materials .......................................................................................................... 6
6 Transformer................................................................................................................ 7
6.1 Transformer Winding........................................................................................... 7
6.2 Electrical Specifications....................................................................................... 7
6.3 Transformer Construction.................................................................................... 8
6.4 Winding Instructions ............................................................................................ 8
6.5 Materials.............................................................................................................. 9
6.6 Design Notes:...................................................................................................... 9
7 Performance Data .................................................................................................... 10
7.1 Efficiency........................................................................................................... 10
7.2 Load Regulation ................................................................................................ 11
7.3 Line Regulation ................................................................................................. 11
7.4 No Load Input Power......................................................................................... 12
7.5 Output Ripple Measurements............................................................................ 13
7.5.1 Ripple Measurement Technique ................................................................ 13
7.5.2 Output Voltage Ripple ................................................................................ 14
8 Surge Test................................................................................................................ 14
9 EMI Tests ................................................................................................................. 15
10 Revision History.................................................................................................... 17
Page 2 of 19
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