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PM8805 Datasheet Ieee 802.3bt Poe-pd Interface

Manufacturer: STMicroelectronics

Overview: PM8805 Datasheet IEEE 802.3bt PoE-PD interface with embedded dual active bridge Product label Product status link.

General Description

The PM8805 is a system-in-package for smart power supply of Power over Ethernet (PoE) Powered Devices (PD) and it is applicable for power level up to 99.9 W.

It embeds: two active bridges and their driving circuitry, a charge pump to drive the high-side MOSFETs, the hot swap MOSFET and the interface compliant with IEEE 802.3bt.

The device performs the physical layer classification, providing the indication of successful PSE type identification.

Key Features

  • Dual active bridge, hot swap MOSFET and PoE-PD interface in a system-inpackage.
  • 100 V N-ch MOSFETs with 0.2 Ω total path resistance for each active bridge.
  • 100 V, 0.1 Ω high-side N-ch hot swap MOSFET.
  • PoE-PD single-signature interface compliant with IEEE 802.3bt / at / af.
  • Supports 4-pair PoE.

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PM8805 Distributor