TOP245P_1 POWERINT [Power Integrations, Inc.], TOP245P_1 Datasheet - Page 3

• Manufacturer Part Number: TOP245P_1
• Description: Title 32W (47W peak) Multiple Output supply
• Manufacturer: POWERINT [Power Integrations, Inc.]

DER-19
Figure 1 – Populated Circuit Board (Scale in cm).............................................................. 4
Figure 2– TOP245P Schematic for 32W cont / 46W peak................................................. 6
Figure 3 – Printed Circuit Layout (Scale not 1:1) ............................................................... 8
Figure 4 –Transformer Electrical Diagram....................................................................... 10
Figure 5 – Transformer Build Diagram ............................................................................ 11
Figure 6- Full Continuous Power Conversion Efficiency.................................................. 15
Figure 7 - Efficiency Variation with Load ......................................................................... 15
Figure 8 – Load Regulation, Room Temperature, 230V
Figure 9 – Line Regulation, Room Temperature, Full Load............................................. 17
Figure 10 - Cross Regulation........................................................................................... 17
Figure 11 - Key Component Temperature Rise variation with Line Voltage .................... 18
Figure 12 - 195 V
Figure 13 - 265 VAC, Full Continuous Load .................................................................... 18
Figure 14 -Start-up Profile, 230V
Figure 15 - Start-up Profile, 230V
Figure 16 - Start-up Profile, 230V
Figure 17 - 195 V
Figure 18 - 265 VAC Input and Maximum Load............................................................... 20
Figure 19 – Transient Response, 230 V
Figure 20 - Oscilloscope Probe Prepared for Ripple Measurement................................. 21
Figure 21 - Oscilloscope Probe with Probe Master 5125BA BNC Adapter...................... 21
Figure 22 – 3V3 Ripple, 230 V
Figure 23 – 3V3 Switching Noise, 230 V
Figure 24 – 5V Ripple, 230 V
Figure 25 – 5V Switching Noise, 230 V
Figure 26 – 12V Ripple, 230 V
Figure 27 – 12V Switching Noise, 230 V
Figure 28 – 20V Rail Ripple, 230 V
Figure 29 – 20V Rail Switching Noise, 230 V
Figure 30 - Conducted EMI, Full Continuous Power, 230 V
Figure 31 - Conducted EMI, Full Continuous Power, 230 V
Important Notes:
Although this board 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.
Design Reports contain a power supply design specification, schematic, bill of materials,
and transformer documentation. Performance data and typical operation characteristics
are included. Typically only a single prototype has been built.
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................................................................................................................................. 20
AC
AC
, Full Continuous Load...................................................................... 18
Input and Maximum Load. ............................................................... 20
TOP245P Multiple Output Set Top Box
AC
AC
AC
, Full Load....................................................................... 22
, Full Load..................................................................... 22
, Full Load..................................................................... 23
AC
AC
AC
Table Of Figures
.................................................................................. 19
AC
................................................................................. 19
................................................................................. 19
, Full Load. ............................................................ 23
AC
AC
AC
AC
, Full Load. ...................................................... 22
, 3A to 4A Step load change on 3V3. Full Load.
, Full Load. .................................................... 22
, Full Load. .................................................... 23
AC
, Full Load. ............................................. 23
Tel: [phone] Fax: [phone]
AC
Input...................................... 16
AC
AC
, and EN55022 B Limits. .. 24
, and EN55022 B Limits. .. 24
Power Integrations, Inc.
www.powerint.com
March 30, 2004