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PD70101 - Power Over Ethernet 802.3af/at PD Controller

Key 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.

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Other Datasheets by Microsemi (now Microchip Technology)

Part Number Description
PD70100 IEEE 802.3af/at PD Front End IC
PD70200 IEEE 802.3af/at PD Front End IC
PD70201 Power Over Ethernet 802.3af/at PD Controller
PD70210 Front-End PD Interface Controller
PD70210A Front-End PD Interface Controller

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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PD70101 / PD70201 Datasheet Power Over Ethernet 802.3af/at PD Controller The PD70101 and PD70201 are integrated Powered Device Interface and PWM controllers for a DC-DC converter used in IEEE802.3af and IEEE802.3at applications. The PD70101 can be used for IEEE802.3af or IEEE802.3at Type 1 applications, while the PD70201 can also be used in IEEE802.3at Type 2 applications. A single PD70201 can be used in 4-pair applications which consumes up to 47.7W. 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. The system then begins the classification phase.