PD70210AL datasheet(21/36 Pages) MICROCHIP

Part #	PD70210AL

Description	PD Controller with Switching Regulator for AF/AT/UPOE/ HDBaseT/4-pair PoE Applications

PDF	36 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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21 / 36 page

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Number

Designator

Description

4P_HD_FLAG

Open drain output. The pin gets actively pulled low when a 4-pair HDBaseT PD-

PSE mutually identify each other via classification. There is a minimum 80 ms delay

from the moment that the input capacitor is fully charged to this signal activity.

Signal is referenced to VPN_OUT.

VPP

Upper rail of the incoming PSE voltage rail—from the positive terminal of the two

OR-ed bridge rectifiers (the corresponding lower PoE rail is VPN_IN).

RDET

Internally connects to VPN_IN during detection phase and disengages after it is

over. A 25 KΩ (or 24.9K), 1% resistor is connected between this pin and VPP.

EPAD

Connected on PCB plane to VPN_IN.

PD70211

Pin Configuration

Datasheet

DS00003672A-page 21

PD70210AL Datasheet(PDF) 21 Page - Microchip Technology