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SI3460 Datasheet IEEE 802.3af PSE INTERFACE AND DC-DC CONTROLLER

Manufacturer: Silicon Laboratories

Overview: www.DataSheet.co.kr Si3460 IEEE 802.3af PSE INTERFACE.

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General Description

The Si3460 is a single-port –48 V power management controller for IEEE 802.3af-compliant Power Sourcing Equipment (PSE).

Designed to minimize system cost and ease of implementation in embedded PSE endpoint (switches) or midspan (power injector) applications, the Si3460 operates directly from a 12 or 15 V input supply and integrates a digital PWM-based dc-dc converter for generating the –48 V PSE output supply.

The IEEE-required Powered Device (PD) detection

Key Features

  • IEEE 802.3af™ compliant PSE and dc-dc controller Autonomous operation requires no host processor interface Complete reference design available, including Si3460 controller, PSE firmware, and schematic: Low-cost BOM with compact PCB footprint Operates directly from a +12 or +15 V isolated supply dc-dc controller generates.
  • 48 V PSE output for SELV compatibility with telephony interfaces Supports up to 15.4 W maximum output power (Class 0) Robust 3-point detection algorithm eliminates fals.

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