MAX5995B
Description
The MAX5995A/MAX5995B/MAX5995C provide a plete interface for a powered device (PD) to ply with the IEEE® 802.3af/at/bt standard in a Power-Over-Ethernet (Po E) system. The devices provide the PD with a detection signature, classification signature, and an integrated isolation power switch with startup inrush current control. During the startup period, the devices limit the current to 135m A (typ) before switching to the higher current limit (1800m A to 2400m A, typ) when the isolation power MOSFET is fully enhanced. The devices feature
Multi-Event classification, Intelligent MPS (MAX5995B/MAX5995C), Autoclass (MAX5995C), and an input UVLO with wide hysteresis and long deglitch time to pensate for twisted-pair cable resistive drop and to assure glitch-free transition during power-on/-off conditions. The devices can withstand a maximum voltage of 100V at the input.
The devices support a Multi-Event classification method, as specified in the IEEE 802.3bt standard, and provide a...
