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ADT7476 Datasheet dBCool Remote Thermal Controller and Voltage Monitor

Manufacturer: Analog Devices

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General Description

The ADT7476 dBCool controller is a thermal monitor and multiple PWM fan controller for noise-sensitive or powersensitive applications requiring active system cooling.

The ADT7476 can drive a fan using either a low or high frequency drive signal, monitor the temperature of up to two remote sensor diodes plus its own internal temperature, and measure and control the speed of up to four fans, so they operate at the lowest possible speed for minimum acoustic noise.

The automatic fan speed control loop optimizes fan speed for a given temperature.

Overview

www.DataSheet4U.com dBCool™ Remote Thermal Controller and Voltage Monitor.

Key Features

  • Monitors up to 5 voltages Controls and monitors up to 4 fans High and low frequency fan drive signal 1 on-chip and 2 remote temperature sensors Extended temperature measurement range up to 191°C Automatic fan speed control mode controls system cooling based on measured temperature Enhanced acoustic mode dramatically reduces user perception of changing fan speeds Thermal protection feature via THERM output Monitors performance impact of Intel® Pentium™ 4 processor Thermal control circuit via THER.

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