EPR-000014 Datasheet, PDF (2/28 Pages) Power Integrations, Inc. – Engineering Prototype Report - 3 W Universal Input TinySwitch-II TNY264 Power Supply

EPR-000014 – 9 V, 0.33 A, 3 W TNY264 Adapter
22-Feb-2002
Table of Contents
1 Introduction ................................................................................................................. 3
2 Power Supply Specification ........................................................................................ 4
3 Schematic ................................................................................................................... 5
4 Description.................................................................................................................. 5
5 PCB Layout................................................................................................................. 7
6 Bill of Materials ........................................................................................................... 7
7 Transformer Specification........................................................................................... 8
7.1 Electrical Specifications .......................................................................................... 8
7.2 Materials.................................................................................................................. 8
7.3 Transformer Diagram .............................................................................................. 9
7.4 Transformer Construction ....................................................................................... 9
7.5 Transformer Sources............................................................................................... 9
8 Performance Data..................................................................................................... 10
8.1 Output Regulation ................................................................................................. 10
8.2 Efficiency............................................................................................................... 11
8.3 Standby Power Consumption ................................................................................ 11
8.4 Output Overload.................................................................................................... 12
8.5 Thermal Performance............................................................................................ 12
8.6 Conducted Emissions............................................................................................ 14
8.7 Acoustic Emissions ............................................................................................... 16
9 Waveform Scope Plots ............................................................................................. 18
9.1 Output Ripple Measurement Results .................................................................... 18
9.1.1 DC Ripple Measurement Technique .............................................................. 19
9.2 DC Output Load Transient Response ................................................................... 20
9.2.1 10% to 50% load change, 265 V_AC................................................................. 20
9.2.2 10% to 100% load change, 265 V_AC............................................................... 20
9.3 Turn-On Delay and Overshoot .............................................................................. 21
9.4 Drain Switching Waveforms .................................................................................. 22
9.4.1 85 V_AC, Full load, 132 kHz operation.............................................................. 22
9.4.2 85 V_AC, Full load, ~100 kHz operation............................................................ 22
9.4.3 265 V_AC, Full load, 132 kHz operation............................................................ 23
9.4.4 265 V_AC, Full load, ~60 kHz operation............................................................ 23
10 AC Surge and 100 kHz Ring Wave Immunity ........................................................... 24
10.1 Differential Mode Surge Test Results................................................................ 24
10.2 Common Mode Surge Test Results................................................................... 25
10.3 Differential Mode 100 kHz Ring Wave Test Results ......................................... 25
10.4 Common Mode 100kHz Ring Wave Test Results ............................................. 26
11 Revision History........................................................................................................ 27
Important Note:
Although the EP14 is designed to satisfy safety isolation requirements, the engineering
prototype has not been agency approved. Therefore all testing should be performed
using an isolation transformer to provide the AC input to the prototype board.
Power Integrations, Inc.
Tel: [phone] Fax: [phone]
www.powerint.com
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