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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 261

Hot swapping the CompactPCI bus

Robert Reay

Abstract

The use of the LTC1643L to make a CompactPCI board hot swappable, so that the system power can remain on when the board is inserted or removed, is described.

Keywords

CompactPCI bus

Hot Swap

power supply isolation

LTC1643L

One of the reasons for the increase in popularity of the CompactPCI bus is its ability to be hot swapped into and out of a live backplane without turning off the system power. One of the key elements required for hot swapping a CompactPCI board is the power supply isolation controller.

The LTC1643L is designed to meet the power supply isolation requirements found in the CompactPCI Hot Swap Specification PICMG 2.1. The chip will turn a board’s supply ...

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