EPR-000008 Datasheet, PDF (2/20 Pages) Power Integrations, Inc. – Engineering Prototype Report 1.2 W, Universal Input, Non-isolated, TNY254 (EP8)

EPR-000008 – 1.2 W Universal Input Non-Isolated TNY254
23-April-2001
Table Of Contents
1 Introduction...................................................................................................................... 3
2 Power Supply Specification ............................................................................................. 3
3 Schematic........................................................................................................................ 4
3.1 Configuration “1” – 2 kV (1.2/50 ms) Surge Withstand ................................................. 4
3.2 Configuration “2” – 6 kV (1.2/50 ms) Surge Withstand ................................................. 5
4 Circuit Description ...........................................................................................................6
5 Layout ............................................................................................................................. 7
6 Bill of Materials ................................................................................................................ 8
6.1 Configuration ”1”, 2 kV ................................................................................................. 8
6.2 Configuration ”2”, 6 kV ................................................................................................. 8
7 Inductor ........................................................................................................................... 9
7.1 Calculation ................................................................................................................... 9
7.2 Spreadsheet .............................................................................................................. 10
8.0 Performance Data ......................................................................................................... 11
8.1 Efficiency ................................................................................................................... 11
8.2 Regulation..................................................................................................................12
8.3 Temperature .............................................................................................................. 12
8.4 Waveforms................................................................................................................. 13
8.5 Transient Response................................................................................................... 16
8.6 Surge Voltage Immunity (2 kV and 6 kV, 1.2/50 ms per IEC1000-4-5)....................... 17
Revision History.................................................................................................................... 19
Power Integrations, Inc.
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www.powerint.com
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