PMP30251 Reference Design

Texas Instruments

50.6W Valley Switching Flyback with Universal AC Input Reference Design

Description

The PMP30251 reference design uses the UCC28740 flyback controller  to generate an isolated output 23V@2.2A from an universal AC input. The UCC28740 uses an optical coupler to regulate the output and to improve transient response. The valley-switching technique reduces switching losses and keeps the efficiency high.

Features
  • Isolated outputValley switchingGood transient responseIntegrated 700V startup switchTest report available
Applications
Product Categories
  • Power management