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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 260

Dual channel Hot Swap controller/power sequencer allows insertion into a live backplane

Bill Poucher

Abstract

The LTC1645, a two-channel Hot Swap controller and power sequencer that allows a board to be safely inserted and removed from a live backplane, is described.

Keywords

Hot Swap controller

power sequencer

LTC1645

The LTC1645 is a two-channel Hot Swap controller and power sequencer that allows a board to be safely inserted and removed from a live backplane. When a board is hot swapped, the supply bypass capacitors on the board can draw huge transient currents from the backplane power bus as they charge. These transient currents can cause permanent damage to the capacitors, connector pins and board traces and can disrupt ...

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