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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 248

Hot Swap solution meets AMC and MicroTCA standards

Vladimir Ostrerov

Abstract

The LTC4223, which aims to simplify Hot Swap control for Advanced Mezzanine Cards in ATCA and MicroTCA systems, is described.

Keywords

Dual Hot Swap controller

Advanced Mezzanine Card

MicroTCA

LTC4223

Introduction

The LTC4223 is a dual Hot Swap controller that meets the power requirements of the Micro Telecommunication Computing Architecture (MicroTCA) specification recently ratified by the PCI Industrial Computer Manufacturers Group (PICMG).

The LTC4223 includes an internal pass FET for the 3.3V auxiliary supply and a driver for an external N-channel pass FET for the 12V payload supply. Inrush current for both supplies is controlled: the auxiliary ...

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