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Si3473 - Octal or Quad 2-pair 802.3bt Ethernet Port PoE PSE Controller

General Description

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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.

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Datasheet Details

Part number Si3473
Manufacturer Skyworks Solutions
File Size 1.04 MB
Description Octal or Quad 2-pair 802.3bt Ethernet Port PoE PSE Controller
Datasheet download datasheet Si3473 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
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.