Power Integrations

5245 Hellyer Avenue, San Jose, CA 95138 USA.

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www.powerint.com

Design Example Report

Title

3.5W CV/CC Adapter using TNY264P

Specification

Input: 90 – 265 VAC

Output: 5.5V /0.65A

Application

Cell Phone Charger

Author

Power Integrations Applications Department

Document

Number

DER-35

Date

April 5, 2004

Revision

1.0

Summary and Features

This document is an engineering report describing a cell phone charger power

supply utilizing a TNY264P, with the following features:

• Low cost

• No Y-cap

• Meets EMI

• Very Low Leakage Current

• Does not require a TL431

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 at

www.powerint.com.