TIDA-00617

Class 4 High-Efficiency Driven Flyback Converter (5V/5A) for PoE PD Applications Reference Design

TIDA-00617

Design files

Overview

The TIDA-00617 reference design uses the TPS23751 PoE PD controller in a high effciency (driven) synch flyback converter capable of 5V at 5A.

Features
  • Ethernet Alliance certified for receiving Class 4 power
  • IEEE802.3.at compliant
  • 93% high efficiency (converter only)
  • Test Report is Included
Output voltage options TIDA-00617.1
Vin (Min) (V) 21.6
Vin (Max) (V) 57
Vout (Nom) (V) 5
Iout (Max) (A) 5
Output Power (W) 25
Isolated/Non-Isolated Isolated
Input Type DC
Topology Flyback- Synchronous^POE

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUA99.PDF (1070 K)

Reference design overview and verified performance test data

TIDRFV9.PDF (111 K)

Detailed schematic diagram for design layout and components

TIDRFW0.PDF (253 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRFZ8.PDF (2617 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Powered devices

TPS23751IEEE 802.3at PoE interface with flyback DC-DC controller

Data sheet document-pdfAcrobat PDF open-in-new HTML
N-channel MOSFETs

CSD18504Q5A40-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 6.6 mOhm

Data sheet document-pdfAcrobat PDF open-in-new HTML
Shunt voltage references

TLV431A1% accuracy, low-voltage, adjustable precision shunt regulator

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* Design guide TIDA-00617 Test Results Jul. 07, 2015
Technical article Maximizing PoE PD efficiency on a budget Nov. 10, 2015
Technical article Power over Ethernet: New applications every day Oct. 14, 2015

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