Class 3 - Mulitple Output, High Efficiency Self-Driven Flyback Converter for PoE Applications

(ACTIVE) PMP8454

Description & Features

Technical Documents

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Description

This converter is used for Class 3 PoE applications where high efficiency and multiple outputs are required. PMP8454.1 has an output of 3.3V@2A. The flyback converter with synchronous rectifier provides excellent efficiency and small size for PoE applications such as a IP Phones. The TPS23785B contains both the PoE Powered Device and the PWM controller functions.

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Bill of Materials (BOM)

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Parametrics
 PMP8454.1
(Output Voltage 1)
PMP8454.2
(Output Voltage 2)
Vin (Min) (V)3636
Vin (Max) (V)5757
Vout (Nom) (V)3.35
Iout (Max) (A)21
Output Power (W)6.65
Isolated/Non-IsolatedIsolatedIsolated
Input TypeDCDC
TopologyFlyback- Synchronous
POE
Flyback- Synchronous
POE

TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD17527Q5A  30V, N-Channel NexFET™ Power MOSFETs  MOSFETs  Not Available Not Available
TLV431A  1% Accuracy Low-Voltage Adjustable Precision Shunt Regulator  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
TPS23785B  High-Power, High-Efficiency PoE PD and DC-to-DC Controller  Power over Ethernet (PoE)  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD17527Q5A VSONP (DQJ)| 8 Download Download
TLV431A Download Download
Download Download
Download -
Download Download
Download -
Download Download
TPS23785B 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 614 01 Feb 2013 4
Design files (4)
Title Abstract Type Size (KB) Date Views
ZIP 320 01 Feb 2013 8
PDF 249 01 Feb 2013 4
PDF 21 01 Feb 2013 4
PDF 44 01 Feb 2013 10

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