SI3461 Overview
Description
The Si3461 is a single-port power management controller for IEEE 802.3at-compliant Power Sourcing Equipment (PSE). The Si3461 can be powered from a 50 V input using a shunt regulator, or, to save power, it can be powered from 50 V and 3.3 V power supplies.
Key Features
- IEEE-compliant disconnect IEEE 802.3atTM compliant PSE
- Inrush current control
- Autonomous operation requires
- Short-circuit output fault no host processor interface protection
- Complete reference design
- LED status signal (detect, power good, output fault) available, including Si3461 controller and schematic
- UNH Interoperability Test Lab report available
- Low-cost BOM
- Compact PCB footprint
- Extended operating range
