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Si3472 Datasheet Octal Or Quad 2-pair 802.3bt Ethernet Port Poe Pse Controller

Manufacturer: Skyworks Solutions

Overview: Si3473/72 Data Sheet Octal or Quad 2-pair 802.3bt Ethernet Port PoE PSE Controller The Si3473 and Si3472 are fully programmable, 50 V to 57 V power sourcing equipment (PSE) controllers for IEEE 802.3bt 2-pair, Type 3 applications. As 2-pair, Type 3 PSE controllers, Si3473/72 are compatible with IEEE 802.3af and IEEE 802.3at powered device (PD) loads. Designed for use in PSE endspans (switches) and midspans (injectors), the Si3473/72 integrates eight (Si3473) or four (Si3472) independent ports, each with the IEEE-required detection and classification functionality.

This datasheet includes multiple variants, all published together in a single manufacturer document.

Key Features

  • include 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 2-pair 802.3bt standards. Intelligent power protection circuitry includes input undervoltage detection, output power limit, and short-circuit protection. The Si3473/72 operates autonomously or by host processor control through a two wire, I2C-compatible se.

More Datasheets from Skyworks Solutions

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