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ADM1172 - Hot Swap Controller

Description

The ADM1172 is a hot swap controller that safely enables a printed circuit board to be removed and inserted to a live backplane.

This is achieved using an external N-channel power MOSFET with a current control loop that monitors the load current through a sense resistor.

Features

  • Controls supply rails from 2.7 V to 16.5 V Allows protected board removal and insertion to a live backplane External sense resistor provides adjustable analog current limit with circuit breaker Peak fault current limited with fast response Charge pumped gate drive for external N-FET switch Power-fail comparator Automatic retry or latch-off during current fault Undervoltage lockout 8-lead, TSOT package.

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Full PDF Text Transcription

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Data Sheet 2.7 V to 16.5 V Hot Swap Controller with Power-Fail Comparator ADM1172 FEATURES Controls supply rails from 2.7 V to 16.5 V Allows protected board removal and insertion to a live backplane External sense resistor provides adjustable analog current limit with circuit breaker Peak fault current limited with fast response Charge pumped gate drive for external N-FET switch Power-fail comparator Automatic retry or latch-off during current fault Undervoltage lockout 8-lead, TSOT package APPLICATIONS Hot swap board insertion: line cards, raid systems Industrial high-side switches/circuit breakers Electronic circuit breakers GENERAL DESCRIPTION The ADM1172 is a hot swap controller that safely enables a printed circuit board to be removed and inserted to a live backplane.
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