Non-Standard PoE, UPOE High-Efficiency Flyback Converter Reference Design for PoE PD Applications

(ACTIVE) TIDA-00741

Description & Features

Technical Documents

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Description

TIDA-00741 uses two TPS2378 PD controllers for a forced 4-pair UPOE solution to 51W non-standard PoE PD applications. It incorportates the UCC2897A controller in a high-efficiency, great transient response (driven) synch flyback converter capble of 12V at 3.8A.

Features
  • Forced 4-Pair UPOE (51W)
  • 92% high efficiency (converter only)
  • Test Report is Included
  • Board can be purchased

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  



Schematic/Block Diagram

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Test Data

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Design Files

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Bill of Materials (BOM)

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Parametrics
 TIDA-00741.1
(Output Voltage 1)
Vin (Min) (V)42.5
Vin (Max) (V)57
Vout (Nom) (V)12
Iout (Max) (A)3.8
Output Power (W)45.6
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyFlyback- Synchronous
POE

TI Devices (5)

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
CSD18504Q5A  40V, N-Channel NexFET™ Power MOSFET  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
TL431A  1% Accuracy Adjustable Precision Shunt Regulator  Voltage references  Sample & Buy Not Available
TL7700  Voltage Supervisor  Power management  Sample & Buy Not Available
TPS2378  IEEE 802.3at PoE High-Power PD Interface with AUX Control  Power over Ethernet (PoE)  Sample & Buy View Design Kits & Evaluation Modules
UCC2897A  Advanced Current-Mode Active Clamp PWM Controller  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD18504Q5A VSONP (DQJ)| 8 Download Download
TL431A Download Download
Download Download
Download -
Download Download
Download Download
Download Download
Download Download
Download -
Download Download
TL7700 Download Download
Download Download
Download -
Download Download
TPS2378 Download
UCC2897A Download Download
Download -

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 841 09 Nov 2015 9
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 2914 09 Nov 2015 9
PDF 253 09 Nov 2015 6
PDF 296 09 Nov 2015 32

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