Si3453

Si3453 QUAD HIGH-VOLTAGE PORT CONTROLLER FOR POE AND POE+ PSES Features  Each Si3453 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 IC high-voltage Power policing mode component integration simplifies Robust multi-point detection design, lowers power dissipation, Supports 1-Event and 2-Event minimizes external BOM, and classification algorithms reduces PCB footprint  Comprehensive, robust, fault- Inter...