Dual-Output 5V at 300mA and 15V at 100mA Isolated Flyback From 85V to 440V AC Mains Reference Design
PMP10236
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Key Document
- PMP10236 Test Results
(PDF 702 KB)
28 Apr 2016
Description
This is an isolated quasi-resonant flyback converter, supplying 5 V at 300 mA and 15 V at 100 mA; both outputs are isolated from each other. The UCC28722 has been chosen to drive a low-cost high-voltage BJT transistor.
Features
- UCC28722-based isolated flyback
- 70% peak efficiency at full load 325-V DC input voltage
- Wide input voltage range: 85-V to 440-V AC
- Low cost due to main switch BJT transistor
- Magnetic feedback - no optocoupler needed
See the Important Notice and Disclaimer covering reference designs and other TI resources.