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Si3474 Datasheet Ethernet Port Poe Pse Controllers

Manufacturer: Skyworks Solutions

Overview: Si3474 Data Sheet Up to four 802.3bt or eight 802.3at Ethernet Port PoE PSE Controllers The Si3474 is a fully programmable, 50 to 57 V power management controller for IEEE 802.3af, 802.3at, and 802.3bt compliant Power Sourcing Equipment (PSE). Designed for use in PSE endpoints (switches), the Si3474 integrates eight independent ports, each with the IEEE-required powered device (PD) detection and classification functionality. When used in 802.3af/802.3at (two-pair power) mode each PSE port supports one Ethernet connection, for a total of eight PoE Ethernet connections. 802.3bt operation (four-pair power) uses two PSE ports per Ethernet connection, for a total of four PoE Ethernet connections.

Key Features

  • a fully-programmable architecture that enables powered device (PD) disconnect using dc-sense algorithms, a robust multipoint detection algorithm, software configurable per-port current and voltage monitoring, and programmable current limits to support the IEEE 802.3af, 802.3at, and 802.3bt standards. Intelligent protection circuitry includes input undervoltage detection, output current limit, and short-circuit protection. The Si3474 operates autonomously or by host processor control through a tw.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
Silicon Laboratories Logo Si3474 Up to four 802.3bt or eight 802.3at Ethernet Port PoE PSE Controller Silicon Laboratories
Vishay Logo SI3474DV N-Channel 100-V (D-S) MOSFET Vishay

More Datasheets from Skyworks Solutions

Part Number Description
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Si3404 1-Compliant POE PD Interface and High-Efficiency Switching Regulator
Si34061 POE+ PD Interface & Switching Regulators
Si34062 POE+ PD Interface & Switching Regulators
Si34071 90W Powered Device
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