Class 4- 3.3V/7.6A Active Clamp Forward Converter Reference Design for PoE Applications
PMP7452
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Description & Features

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Description

This converter reference design is used for Class 4 PoE applications where high efficiency is required. The active clamp forward converter with synchronous rectifiers provides excellent efficiency and small size for PoE applications such as a wireless access point. The TPS23754 contains both the PoE Powered Device and the PWM controller functions.

Features
  • High efficiency(90%)
  • 3.3V at 7.6A output
  • Isolated Forward with synchornous rectifier
  • Uses TPS23754 high-power, high-efficiency PoE interface PD and PWM controller
  • Small size solution
  • This circuit design is full-functional tested and recommended for new designs

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Schematic/Block Diagram

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Design Files

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Parametrics
 PMP7452.1
(Output Voltage 1)
Vin (Min) (V)36
Vin (Max) (V)57
Vout (Nom) (V)3.3
Iout (Max) (A)7.6
Output Power (W)25.08
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyForward- Active Clamp
POE

TI Devices (3)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD17510Q5A  30V N-Channel Low Side NexFET Power MOSFET with 20 Volt Vgs  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
TLV431  1.5% Accuracy Low-Voltage Adjustable Precision Shunt Regulator  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
TPS23754  IEEE 802.3at, high efficiency, PoE interface and DC/DC controller  Power over Ethernet (PoE)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD17510Q5A VSONP (DQJ)| 8 Download Download
TLV431 Download Download
Download Download
Download -
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TPS23754 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 390 18 Jan 2013
Design files (4)
Title Type Size (KB) Date
ZIP 11 13 May 2014
ZIP 239 13 May 2014
PDF 51 18 Jan 2013
PDF 136 18 Jan 2013

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