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TPS23755 Datasheet Ieee 802.3at Poe Pd

Manufacturer: Texas Instruments

Overview: TPS23755 SLVSDW2B – DECEMBER 2018 – REVISED NOVEMBER 2020 TPS23755 IEEE 802.

General Description

The TPS23755 device combines a Power over Ethernet (PoE) powered device (PD) interface, a 150V switching power FET, and a current-mode DC-DC controller optimized for flyback topology.

The high level of integration along with primary side regulation (PSR), spread spectrum frequency dithering (SSFD), and advanced startup makes the TPS23755 an ideal solution for size-constrained applications.

The PoE implementation supports the IEEE 802.3at standard as a 13-W, Type 1 PD.

Key Features

  • Complete IEEE 802.3at PD solution for type 1 PoE.
  • Ethernet Alliance (EA) logo certified designs available.
  • Robust 100-V, 0.36-Ω (typ) hotswap MOSFET.
  • Programmable classification level.
  • Integrated PWM controller with 0.77-Ω (typ) 150-V power MOSFET.
  • Flyback controller with PSR.
  • Supports CCM operation with secondary side diode rectifier.
  • ±3% (typ, 12-V Output) Load regulation (5%-100% range).
  • Supports low-side switch.

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