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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 315

Power monitor for automotive and telecom applications includes ADC and I2C interface

Dilian Reyes

Abstract

The LTC4151, an easy to use but feature-rich power monitoring device suitable for a wide variety of automotive, telecom and industrial applications, is described.

Keywords

Power monitor

automotive

telecom

LTC4151

Introduction

The LTC4151 is a high side power monitor that includes a 12-bit ADC for measuring current and voltage, as well as the voltage on an auxiliary input. Data is read through the widely used I2C interface. An unusual feature in this device is its 7V to 80V operating range, allowing it to cover applications from 12V automotive to 48V telecom.

Automotive power monitoring

Automobile batteries serve ...

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