DER-50
Set Top Box Design using TOP245R
April 20, 2005
7.4 Transformer Build Diagram
PIN 2
PIN 1
½ Primary Winding
PIN 10
PIN 9
18V / 23V Winding
PIN 8
PIN 7
5V Winding
PIN 6
PIN 8
3V3 Winding
PIN 4
PIN 5
PIN 3
PIN 2
Bias Winding
½ Primary Winding
Core Shield Winding
PIN 1
N.C.
Figure 5 – Transformer Build Diagram.
10mm
0.1mm Thick
Foil
7mm
Insulation
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
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