21 W Standby Power Supply using
TNY280P
Title
Input: 85 – 295 VAC (110 – 420 VDC)
Outputs: 5 V / 4 A; 15 V / 67 mA
Specification
Application
Author
General PC-Standby Supply
Power Integrations Applications Department
Document
Number
DER-114
Date
June 28, 2006
1.0
Revision
Summary and Features
• High standby efficiency: PIN < 0.70 W @ POUT = 0.5 W, at 230 VAC input
• Under-voltage lockout (UVLO) function: glitch-free startup and shutdown
• Two means of implementing output overvoltage protection (OVP)
• EEL22 transformer core meets clearance and creepage requirements
• Output overload, short circuit and open feedback loop protection
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: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com