PMP7499 Reference Design

Texas Instruments

Non-Standard (>25.5W) PoE - High Efficiency Forward Converter (12V@5A) Reference Design

Description

This converter provides a high power PoE output of 12V/5A. The TPS2379 PD controller allows the use of an external hot swap FET for increased efficiency. The UCC2897A PWM controller is used to implement a high efficiency active clamp forward converter.

Features
  • High efficiency (90% with PoE supply: 93.6% with adapter supply) 12V at 5A output Isolated Forward with synchornous rectifier Uses TPS2379 combined with UCC2897A to implement a high efficiency active forward converter Allows an external hot swap FET for increased efficiency This circuit design is full-functional tested and recommended for new designs
Applications
  • Video doorbell
  • Electronic smart lock
  • Thermal imaging camera
  • IP network camera
  • Residential lighting
Product Categories
  • Power management

Parts

Part Number Name Companion Part
CSD18533Q5A CSD18533Q5A Buy Datasheet
TL431A TL431A Buy Datasheet
TPS2379 TPS2379 Buy Datasheet
UCC2897A UCC2897A Buy Datasheet

Bill Of Materials

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Schematic

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Test Data

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Other Documents

Title Updated Type Size (KB)
PMP7499 Gerber 13 May 2014 ZIP 344
PMP7499 PCB 21 Mar 2013 PDF 202
PMP7499 BOM 21 Mar 2013 PDF 141
PMP7499 Schematic 21 Mar 2013 PDF 59