Power Integrations, Inc.

5245 Hellyer Avenue, San Jose, CA 95138 USA.

Tel: +1 408 414 9200 Fax: +1 408 414 9201

www.powerint.com

Title

Engineering Prototype Report for EP-32

−

DVD, Set-top Box Power Supply Using

TOP245P

Specification

85 VAC to 265 VAC Input, 3.3 V, 5 V, 12 V,

-24 V, 20 W continuous / 25 W peak output

Application

DVD player, Set-top box and other multiple

output applications

Author

Power Integrations Applications Department

Document

Number

EPR-32

Date

13-Jul-06

Revision

1.1

Summary and Features

• Low parts count, low cost design

• Excellent cross-regulation without linear post-regulators

• Simple input EMI filter

• Meets EN55022 B / CISPR22 B EMI with >20 dB margin

• Low no-load input power (<65 mW at 115 VAC, <90 mW at 230 VAC)

• High standby efficiency, <0.9 W input power with 0.5 W load

• High efficiency, >75%

The products and applications illustrated herein (including circuits external to the products and transformer

construction) may be covered by one or more U.S. and foreign patents or potentially by pending U.S. and foreign

patent applications assigned to Power Integrations. A complete list of Power Integrations’ patents may be found