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TPS2370 - IEEE 802.3af Power Interface Switch

Description

Acting as an interface between the power sourcing equipment (PSE) and the powered device (PD), the TPS2370 performs all detection, classification, inrush current limiting, and switch FET control that is necessary for compliance with the IEEE 802.3af Standard.

Features

  • D Integrated Power Interface Switch for IEEE 802.3af Powered Devices (PDs) D Provides PD Detection Signature D Provides PD Classification Signature (Class 0.
  • 4) D Programmable Inrush Current Limit D Internal 0.3-Ω Low-Side FET D Interfaces to DC/DC Soft-Start for DC/DC Enable D Internal Thermal Protection.
  • Disconnects PD Load D Minimal External Parts Count D 8-Pin SOIC, 8-Pin TSSOP Packages.

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Full PDF Text Transcription

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TPS2370 www.ti.com SLUS537C − AUGUST 2002 − REVISED MARCH 2004 IEEE 802.3af POWER INTERFACE SWITCH FOR POWER OVER ETHERNET (PoE) POWERED DEVICES FEATURES D Integrated Power Interface Switch for IEEE 802.3af Powered Devices (PDs) D Provides PD Detection Signature D Provides PD Classification Signature (Class 0−4) D Programmable Inrush Current Limit D Internal 0.
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