PD70211 Datasheet (Microchip)

PD70211, PD Controller

5 2.

Electrical Specifications 7 2.1.

Absolute Maximum Ratings7 2.2.

Operating Ratings 8 2.3.

Thermal Properties8 2.4.

Electrical Characteristics 9 3.

Pin Configuration16 4.

Package Specifications 22 4.1.

Recommended PCB Layout

PD70211 PD Controller with Switching Regulator for AF/AT/UPOE/ HDBaseT/4-pair PoE Applications Product Overview Microchip's PD70211 is an advanced PD interface IC with integrated switching Pulse-Width Modulation (PWM) regulator control for powered devices in PoE applications.

It supports IEEE® 802.3af, IEEE 802at, HDBaseT, and general 2/4-pair configurations.

The PD70211 front-end includes an advanced classification block that supports 2, 3, 4, and 6 event classification.

Using the SUPP_Sx pins,

PD70211 Features

* an internal bleeder for discharging the input capacitor of the DC/DC converter rapidly to ensure fast re-detection and port power-up, in case of a sudden removal and re-insertion of the Ethernet cable into the RJ-45. The advanced PWM current-mode section supports synchronous Flyback and Active Clamp