Si3452 - Silicon Laboratories

Si3452 QUAD HIGH-VOLTAGE PORT CONTROLLER

" on page 28. Rev. 1.5 1/15 Copyright © 2015 by Silicon Laboratories Si3452 Si3452 Description When connected directly to the host system or configured in Auto mode, each Si3452 high-voltage port controller provides all of the critical circuitry and sophisticated power measurement functionality for the high-voltage interfaces of four complete PSE ports. .

Features

 Each Si3452 high-voltage port
 Programmable architecture supports controller supports four PSE power IEEE 802.3af (PoE) and IEEE interfaces 802.3at (PoE+) PSEs
 Programmable current limits for PoE
Programmable current limits for (15.4 W), PoE+ (30 W), and PoE (350 mA) and PoE+ proprietary systems (up to 40 W) per (600 mA), and custom limits to port 850 mA
 I2C interface requires no external
Per-port current and voltage MCU for easy, low-cost management monitoring for sophisticated power of 4 to 48 ports by the host system management and control
 Unique mixed-signal .