ADT7490ARQZ

dBCool远程温度监控和风扇控制器PECI接口 dBCool Remote Thermal Monitor and Fan Controller with PECI Interface

The ADT7490 is a thermal monitor and multiple PWM fan controller for noise-sensitive or power-sensitive applications requiring active system cooling. The ADT7490 includes a local temperature sensor, two remote temperature sensors including series resistance cancellation, and monitors CPU temperature with a PECI interface. The ADT7490 can drive a fan using either a low or high frequency drive signal, and measure and control the speed of up to four fans so they operate at the lowest possible speed for minimum acoustic noise.

Features

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1 local on-chip temperature sensor

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2 remote temperature sensors

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3-current external temperature sensors with series resistance cancellation SRC

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PECI interface for CPU thermal information and support of up to 4 PECI inputs on one pin

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3 high frequency or low frequency PWM outputs for use with 3-wire or 4-wire fans

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4 TACH inputs to measure fan speed

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OS independent automatic fan speed control based on thermal information

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Dynamic TMIN control mode to optimize system acoustics

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Default startup at 100% PWM for all fans for robust operation