EPR-000013 Datasheet, PDF (2/56 Pages) Power Integrations, Inc. – Engineering Prototype Report (EP13) 43 W / 57 W pk, 5 Output TOPSwitch팜-GX (TOP246Y) Power Supply

EPR-000013 – 43 W Multiple Output TOP246 Power Supply
08-May-2001
Table Of Contents
1 Introduction .................................................................................................................4
2 Power Supply Specification ........................................................................................5
3 Schematic ...................................................................................................................6
4 Circuit Description.......................................................................................................7
5 PCB Layout...............................................................................................................10
6 Bill Of Materials.........................................................................................................11
7 Transformer Specification .........................................................................................13
7.1 Electrical Specifications.........................................................................................13
7.2 Materials................................................................................................................13
7.3 Winding Instructions ..............................................................................................14
7.4 Transformer Sources.............................................................................................14
8 Transformer Spreadsheets .......................................................................................15
8.1 230 V_AC, 60 W Peak Load .....................................................................................15
8.2 230 V_AC, 45 W Steady State Load.........................................................................18
9 Performance Data.....................................................................................................21
9.1 Efficiency...............................................................................................................21
9.2 No-load Input Power..............................................................................................21
9.3 Regulation .............................................................................................................22
9.3.1 Maximum load all outputs ..............................................................................22
9.3.2 Peak load all outputs......................................................................................22
9.3.3 3.3 V Min. load, 12 V peak, other outputs fully loaded ...................................23
9.3.4 12 V Min. load, other outputs at maximum load condition..............................23
9.3.5 12 V Peak load, 30 V min. load, other outputs at max. load...........................24
9.3.6 5 V and 3.3 V min load, all other outputs maximum .......................................24
10 Thermal Performance ...............................................................................................25
11 Waveforms................................................................................................................26
11.1 Drain Voltage and Current, Normal Operation...................................................26
11.2 Output Voltage Start-up Profile..........................................................................26
11.3 Drain Voltage and Current Start-up Profile ........................................................27
11.4 Load Transient Response (75% to 100% Load Step)........................................28
11.5 Output Ripple Measurements ............................................................................29
11.5.1 Ripple Measurement Technique ....................................................................29
11.5.2 Measurement Results at 180 V_AC...................................................................30
11.5.3 Measurement Results at 230 V_AC...................................................................31
12 Control Loop Measurements.....................................................................................32
12.1 180 V_AC Maximum Load ....................................................................................32
12.2 230 V_AC Maximum Load ....................................................................................33
12.3 265 V_AC Maximum Load ....................................................................................34
13 Conducted EMI .........................................................................................................35
14 AC Surge and 100 kHz Ring Wave Immunity ...........................................................35
14.1 Common Mode Surge, 1.2/50 µsec ...................................................................36
14.2 Differential Mode Surge, 1.2/50 µsec ................................................................36
14.3 Common Mode, 100 kHz Ring Wave.................................................................37
14.4 Differential Mode, 100 kHz Ring Wave ..............................................................37
Power Integrations, Inc.
Tel: [phone] Fax: [phone]
www.powerint.com
Page 2 of 56