PMP8780 Reference Design

Texas Instruments

Primary-Side Regulated Flyback with 85 to 265VAC Input (12V @ 1A) Reference Design

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 efficiencyPrimary side regulation eliminates optocoupler and error amplifier for a low cost solutionMeets Class B conducted EMI emissions
Applications
Product Categories
  • Power management

Parts

Part Number Name Companion Part
UCC28700 UCC28700 Buy Datasheet

Bill Of Materials

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Schematic

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Design File

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Test Data

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Other Documents

Title Updated Type Size (KB)
PMP8780 Assembly Drawing 07 Oct 2015 PDF 54
PMP8780 BOM 07 Oct 2015 PDF 79
PMP8780 Schematic 07 Oct 2015 PDF 122