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PD70201 - 802.3af/at PD Controller

This page provides the datasheet information for the PD70201, a member of the PD70101 802.3af/at PD Controller family.

Datasheet Summary

Features

  • designed to improve efficiency and reliability:.
  • Detection and Classification: The front-end interface includes detection and classification circuitry. The detection signature resistor is disconnected upon completion of the detection phase. The system then begins the classification phase. Classification can be configured for Classes 0 to 4 via an external resistor. The PD70201 includes a two-events classification identification circuit, which generates a flag to inform the PD applicatio.

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Datasheet preview – PD70201

Datasheet Details

Part number PD70201
Manufacturer Microchip
File Size 1.76 MB
Description 802.3af/at PD Controller
Datasheet download datasheet PD70201 Datasheet
Additional preview pages of the PD70201 datasheet.

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Full PDF Text Transcription

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PD70101 and PD70201 PoE IEEE® 802.3af/at PD Controller Introduction The PD70101 and PD70201 devices are integrated Powered Device (PD) interface and PWM controllers for a DC-DC converter used in IEEE® 802.3af and IEEE® 802.3at applications. The PD70101 device can be used for IEEE 802.3af or IEEE 802.3at Type 1 applications, while the PD70201 device can also be used in IEEE 802.3at Type 2 applications. A single PD70201 device can be used in 4-pair applications that consume up to 47.7 W. These devices have a number of features designed to improve efficiency and reliability: • Detection and Classification: The front-end interface includes detection and classification circuitry. The detection signature resistor is disconnected upon completion of the detection phase.
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