The PD70210A device from Microchip Technology is an advanced PD interface controller (front-end IC) for powered devices in PoE applications. It supports IEEE 802.3af, IEEE 802at, HDBaseT, and general 2-pair or 4-pair configurations. The PD70210 device includes an advanced classification block that supports 2, 3, 4, and 6 event classifications. Using the SUPPSx pins, they also identify which of the four pairs of the cable receive power and generates appropriate flags. The IC features an internal bleeder for rapidly discharging the input capacitor of the DC-DC converter to ensure fast re-detection and port power-up in case of sudden removal and re-insertion of the Ethernet cable into RJ-45. PD70210A products are ideal for IP, security camera, indoor/outdoor Power-over-Ethernet (PoE), and infrastructure applications.