TNY268P Datasheet, PDF (1/20 Pages) Power Integrations, Inc. – 15W PC Standby power supply

Design Example Report
Title
Specification
Application
Author
Document
Number
Date
Revision
15W power supply using TNY268P
Input: 120 - 420 Vdc
Output: 5V/3A, 13V/10mA
PC Standby
Power Integrations Applications Department
DER-11
February 4, 2004
1.0
Summary and Features
This report details the design of an isolated Flyback converter for a PC Standby power
supply.
• High light load efficiency
• Over 0.4W out at 1W in, as measured in the PC PSU
• Total output power 15 W with TNY268P and EE19 core
• Typical Efficiency 79 %
• Meets ± 5 % output voltage regulation over line and load changes
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.
Applications Hotline: Tel: [phone] Fax: [phone]
www.powerint.com