DER-43 Datasheet, PDF (1/23 Pages) Power Integrations, Inc. – 24.5W Power Supply using DPA424G

Design Example Report
Title
Specification
Application
24.5W Power Supply using DPA424G
Input: -40 VDC
Output: -28V / 480mA, -65 V / 170mA
Telecom Line Card
Author
Power Integrations Applications Department
Document
Number
DER-43
Date
November 18, 2004
Revision
1.0
Summary and Features
• Very high efficiency (>92 % at full load)
• Built-in input under-voltage lockout
• Single converter for both generating dual output voltages
• Non-isolated design
• Compact design
• Transistor feedback signal (instead of opto-coupler)
• Low component count
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