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TPS23757 - High Efficiency PoE Interface and DC/DC Controller

Description

The TPS23757 is a combined Power over Ethernet (PoE) powered device (PD) interface and currentmode dc/dc controller optimized specifically for isolated converters.

The PoE interface supports the IEEE 802.3at standard for a type 1 PD, which is equivalent to the 13W standard of IEEE 802.3-2008.

Features

  • 1.
  • Powers up to 13 W (Input) PDs.
  • Legacy and IEEE 802.3at Type 1 PDs.
  • Optimized for Isolated DC/DC Converters.
  • Supports High-Efficiency Topologies.
  • Complete PoE Interface.
  • Adapter ORing Support.
  • Programmable Frequency with Synch.
  • Robust 100 V, 0.5 Ω Hotswap MOSFET.
  • Pin Compatible with TPS23754/6.
  • 40°C to 125°C Junction Temperature Range.
  • Industry Standard TSSOP-20.

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Full PDF Text Transcription

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www.ti.com TPS23757 SLVS948D – JULY 2009 – REVISED NOVEMBER 2013 High Efficiency PoE Interface and DC/DC Controller FEATURES 1 • Powers up to 13 W (Input) PDs • Legacy and IEEE 802.3at Type 1 PDs • Optimized for Isolated DC/DC Converters • Supports High-Efficiency Topologies • Complete PoE Interface • Adapter ORing Support • Programmable Frequency with Synch. • Robust 100 V, 0.5 Ω Hotswap MOSFET • Pin Compatible with TPS23754/6 • –40°C to 125°C Junction Temperature Range • Industry Standard TSSOP-20 APPLICATIONS • IEEE 802.3at Type 1 Compliant Devices • Video and VoIP Telephones • Access Points • Security Cameras DESCRIPTION The TPS23757 is a combined Power over Ethernet (PoE) powered device (PD) interface and currentmode dc/dc controller optimized specifically for isolated converters.
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