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Primary-Side Regulated Flyback with 85 to 265VAC Input (12V @ 1A) Reference Design
PMP8780
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
See the Important Notice and Disclaimer covering reference designs and other TI resources.
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.
