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PM8800 - Integrated IEEE 802.3af compliant PoE-PD interface and PWM controller

General Description

The PM8800 integrates a standard Power over Ethernet (PoE) interface and a current mode PWM controller to simplify the design of the power supply sections of all Powered Devices.

Key Features

  • IEEE 802.3af compliant PD Interface.
  • Works with power supplied from Ethernet LAN cables or from local auxiliary sources.
  • Integrated 100V, 0. 5Ω, 800mA Hot-Swap MOSFET.
  • Integrated signature resistor.
  • Programmable in-rush current limit.
  • Programmable classification current.
  • Programmable DC current limit up to 800 mA.
  • High voltage start-up bias regulator.
  • Thermal Shutdown protection.
  • Current mode pulse width modulator.
  • Programmable Oscillator F.

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Datasheet Details

Part number PM8800
Manufacturer STMicroelectronics
File Size 193.21 KB
Description Integrated IEEE 802.3af compliant PoE-PD interface and PWM controller
Datasheet download datasheet PM8800 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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PM8800 Integrated IEEE 802.3af compliant PoE-PD interface and PWM controller with support of external source Preliminary Data Features ■ IEEE 802.3af compliant PD Interface ■ Works with power supplied from Ethernet LAN cables or from local auxiliary sources ■ Integrated 100V, 0. 5Ω, 800mA Hot-Swap MOSFET ■ Integrated signature resistor ■ Programmable in-rush current limit ■ Programmable classification current ■ Programmable DC current limit up to 800 mA ■ High voltage start-up bias regulator ■ Thermal Shutdown protection ■ Current mode pulse width modulator ■ Programmable Oscillator Frequency ■ Programmable Soft-start ■ Power Good Indication ■ 80% maximum duty cycle with internal slope compensation ■ Supports both Isolated and Non-Isolated Applications.