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LTC4292 - 4-Port IEEE 802.3bt PoE PSE Controller

Description

The LTC®4292/LTC4291 chipset is a 4-port power sourcing equipment (PSE) controller designed for use in IEEE 802.3bt Type 3 and

Features

  • nn Four PSE Ports nn Two Power Channels Per Port nn Fully Compliant IEEE 802.3bt Type 3 and 4 PSE nn Compliant Support for Type 1, 2, 3, and 4 PDs nn Low Power Path Dissipation per Channel nn 150mΩ Sense Resistance nn 30mΩ or Lower MOSFET RDS(ON) nn Chipset Provides Electrical Isolation nn Eliminates Optos and Isolated 3.3V Supply nn Very High Reliability Multipoint PD Detection nn Connection Check Distinguishes SingleSignature and Dual-Signature PDs nn Continuous, Dedicated Per-Port Power and C.

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Full PDF Text Transcription

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FEATURES nn Four PSE Ports nn Two Power Channels Per Port nn Fully Compliant IEEE 802.3bt Type 3 and 4 PSE nn Compliant Support for Type 1, 2, 3, and 4 PDs nn Low Power Path Dissipation per Channel nn 150mΩ Sense Resistance nn 30mΩ or Lower MOSFET RDS(ON) nn Chipset Provides Electrical Isolation nn Eliminates Optos and Isolated 3.3V Supply nn Very High Reliability Multipoint PD Detection nn Connection Check Distinguishes SingleSignature and Dual-Signature PDs nn Continuous, Dedicated Per-Port Power and Current Monitoring nn Per-Port Power Policing nn 1MHz I2C Compatible Serial Control Interface nn Pin or I2C Programmable PD Power Up to 71.
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