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reference designTPS2379 | Demoboard PMP7499

Texas Instruments TPS2379 | Demoboard PMP7499

Non-Standard (>25.5W) PoE - High Efficiency Forward Converter (12V@5A) Reference Design

Overview

TopologyForward Converter
Input voltage42-57 V
IC revisionB

Description

This converter provides a high power PoE output of 12V/5A. The TPS2379 PD controller allows the use of an external hot swap FET for increased efficiency. The UCC2897A PWM controller is used to implement a high efficiency active clamp forward converter.Remark: BOM & Test-Result are added with schematic.

Features

  • High efficiency (90% with PoE supply, 93.6% with adapter supply)
  • 12V at 5A output
  • Isolated Forward with synchornous rectifier
  • Uses TPS2379 combined with UCC2897A to implement a high efficiency active forward converter
  • Allows an external hot swap FET for increased efficiency
  • This circuit design is full-functional tested and recommended for new designs

Typical applications

  • IP Camera

More information

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IR(A)
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7446722002
SPECWE-LF Common Mode Power Line Choke, 2 A, 2.2 mH
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LF Common Mode Power Line Choke
Rated Current2 A
Inductance [1]2.2 mH
DC Resistance [1]0.06 Ω
Rated Voltage250 V (AC)
Insulation Test Voltage1500 V (AC)
MaterialMnZn 
Length23 mm
Width23 mm
Height14.5 mm
MountTHT 
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