PMP12027 Reference Design

Texas Instruments

Valley Switching Flyback with 85 to 265VAC Input (48V @ 0.625A) Reference Design

Description

The PMP12027 reference design uses the UCC28740 flyback controller to generate a 48V/625mA output from a universal AC input.  The valley switching of the UCC28740 allows this design to achieve a maximum load efficiency over 90%; no load losses are less than 100mW. The constant current regulation mode of the UCC28740 provides accurate current limiting.

Features
  • Over 90% average 4 point efficiencyStandby (no load) power consumption is less than 100mWConducted emissions are below Class B levelsAccurate current limiting
Applications
Product Categories
  • Power management

Parts

Part Number Name Companion Part
TL431A TL431A Buy Datasheet
UCC28740 UCC28740 Buy Datasheet

Bill Of Materials

Download the bill of materials for PMP12027 Download

Design File

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Download the design file for PMP12027

Other Documents

Title Updated Type Size (KB)
PMP12027 Assembly Drawing (from PMP9144) 21 Mar 2016 PDF 74
PMP12027 BOM 21 Mar 2016 PDF 103