DER-94 Datasheet, PDF (1/34 Pages) Power Integrations, Inc. – 46 W Power Supply using TOP246Y

Design Example Report
Title
46 W Power Supply using TOP246Y
Specification
Input: 90 – 265 VAC
Output: 5 V / 2 A, 12 V / 3 A
Application LCD Monitor
Author
Power Integrations Applications Department
Document
Number
DER-94
Date
September 12, 2005
Revision
1.0
Notable Features
• Low Standby Power Consumption (< 1 W Input for 0.3 W Output @ 265 VAC)
• Meets 12 V Regulation Requirements for Low Cost LCD Panel without Linear
Regulator
• Meets Output Ripple Requirements During 12 V Burst Load Test
• Meets 5 V LPS Standard without Fuse (Auto-restart)
• Built-In OVP (Auto-restart)
• Meets CISPR22B Conducted EMI with Margin
• High Efficiency (81% Minimum, 84% Typical)
• Low Parts Count
• No TVS for Primary Snubber
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