Primary-Side Regulated Flyback with 85 to 265VAC Input (12V @ 1A) Reference Design
PMP8780
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Key Document
- PMP8780 Test Results
(PDF 2590 KB)
07 Oct 2015
Description
The PMP8780 reference design uses the UCC28700 primary-side regulated flyback controller to generate a 12V/1A output from a univeral AC input. The valley switching of the UCC28700 allows this low-cost design to achieve an average efficiency over 83%; no load losses are less than 40mW.
Features
- Over 83% average efficiency
- Primary side regulation eliminates optocoupler and error amplifier for a low cost solution
- Meets Class B conducted EMI emissions
See the Important Notice and Disclaimer covering reference designs and other TI resources.