150-VDC - 430-VDC input, multiple output valley-switching flyback reference design
PMP30825
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Key Document
- 150-VDC - 430-VDC Input, Multiple-Output Valley-Switching Flyback Reference...
(PDF 3630 KB)
24 Apr 2020
Description
This 10-W non-isolated flyback reference design uses the UCC28742 controller to generate four outputs (5 V at 150 mA, 12 V at 690 mA, 15 V at 80 mA, 18 V at 20 mA). The controller provides constant-voltage and constant-current regulation. Transistors are used in place of an optocoupler feedback circuit to reduce the overall BOM cost.
Features
- 150-VDC - 430-VDC input to four outputs
- Protection functions: over voltage, low line, over current and short circuit
- Resonant valley switching for reduced switching losses
- Tested design with available design files and test report
See the Important Notice and Disclaimer covering reference designs and other TI resources.