Features

 Quad-Port Power Sourcing

Equipment (PSE) controller

 IEEE 802.3at Type I and II

compliant

 Port priority shutdown control

 Adds enhanced features for

maximum design flexibility:

Per-port current and voltage

monitoring

PoE Plus support with

programmable current limits

Multi-point detection

Programmable power MOSFET

gate drive control

Configurable watchdog timer

enables failsafe operation

 Maskable interrupt pin

 Comprehensive fault protection

circuitry includes:

Power undervoltage lockout

Output current limit and shortcircuit

protection

Thermal overload detection

 Supports pin-selectable

AUTO mode

 Extended operating temp range:

–40 to +85 °C

 5x7 mm 38-pin QFN package

(RoHS-compliant)

 On-chip dc-dc converter enables

single-rail power operation