DER-92 Datasheet, PDF (1/14 Pages) Power Integrations, Inc. – 0.5W Non-Isolated Buck-Boost Converter using the LNK302P

Design Example Report
Title
0.5W Non-Isolated Buck-Boost Converter
using the LNK302P
Specification
Input: 85-265 VAC
Output: 0.5W, 40mA Constant current
Application LED Driver
Author
Power Integrations Applications Department
Document
Number
DER-92
Date
August 11, 2005
Revision
1.0
Summary and Features
• Low component count (only 9 components required)
• Low Cost, light weight, compact solution
• No Opto-Coupler required
• Open loop operation
• High efficiency (~70%)
• Meets EN55022 B EMI limits with > 8 dB margin
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.
Power Integrations
5245 Hellyer Avenue, San Jose, CA 95138 USA.
Tel: [phone] Fax: [phone]
www.powerint.com