EPR-000008 – 1.2 W Universal Input Non-Isolated TNY254
23-April-2001
Table Of Contents
1
2
3
Introduction......................................................................................................................3
Power Supply Specification.............................................................................................3
Schematic........................................................................................................................4
3.1 Configuration “1” – 2 kV (1.2/50 ꢀs) Surge Withstand .................................................4
3.2 Configuration “2” – 6 kV (1.2/50 ꢀs) Surge Withstand .................................................5
Circuit Description ...........................................................................................................6
Layout .............................................................................................................................7
Bill of Materials................................................................................................................8
6.1 Configuration ”1”, 2 kV.................................................................................................8
6.2 Configuration ”2”, 6 kV.................................................................................................8
Inductor ...........................................................................................................................9
7.1 Calculation...................................................................................................................9
7.2 Spreadsheet ..............................................................................................................10
4
5
6
7
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 ꢀs per IEC1000-4-5).......................17
Revision History....................................................................................................................19
Power Integrations, Inc.
Page 2 of 20
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
POWERINT [ Power Integrations ]
