Class 4, Cost-optimized, Flyback Converter Reference Design for PoE Applications
PMP6812
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Key Document

Description

This reference evaluation module, featuring the TPS23754 PoE interface and DC-to-DC controller is used for class 4 PoE applications.

The flyback topology with diode rectification results in a low-cost converter for PoE applications such as a security camera. With the appropriate BOM changes, PMP6812 can also operate as a 13W supply.

Features
  • Isolated non-synchronous flyback
  • 12V at 1.8A output
  • Good efficiency (84%) at low cost
  • Uses TPS23754 high-power, high-efficiency PoE interface PD and PWM controller
  • The circuit design is full-functional tested and recommended for new designs.

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Schematic/Block Diagram

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Test Data

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Design Files

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Parametrics
 PMP6812.1
(Output Voltage 1)
Vin (Min) (V)42
Vin (Max) (V)57
Vout (Nom) (V)12
Iout (Max) (A)1.8
Output Power (W)21.6
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyFlyback- Non Sync
POE

TI Devices (2)

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
TLV431A  1% 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)
TLV431A Download Download
Download 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 1206 16 Sep 2013
Design files (4)
Title Type Size (KB) Date
PDF 19 28 Jun 2017
PDF 103 28 Jun 2017
PDF 33 18 Sep 2013
ZIP 628 18 Sep 2013

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