GENERAL DESCRIPTION

The ADT7466 dBCool controller is a complete thermal monitor and dual fan controller for noise-sensitive applications requiring active system cooling. It can monitor two analog voltages or the temperature of two thermistors, plus its own supply voltage. It can monitor the temperature of up to two remote sensor diodes, plus its own internal temperature. It can measure and control the speed of up to two fans so that they operate at the lowest possible speed for minimum acoustic noise. The automatic fan speed control loop optimizes fan speed for a given temperature.

FEATURES

Monitors two analog voltages or thermistor temperature inputs

One on-chip and up to two remote temperature sensors with series resistance cancellation

Controls and monitors the speed of up to two fans

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 PROCHOT input

3-wire fan speed measurement

Limit comparison of all monitored values

SMBus 1.1 serial interface

APPLICATIONS

Low acoustic noise notebook PCs

ADT7466ARQZ-REEL属于集成电路（IC） > 热管理。安森美半导体公司制造生产的ADT7466ARQZ-REEL热管理热管理 IC 是根据温度控制电路电源的半导体器件。这些 IC 的功能包括风扇控制、硬件监控器、温度监控系统、热监控器、热电偶放大器、热电偶调节器和温度计–温控器。检测温度范围为 -260℃ 至 +1800℃，输出类型有 I2C、SMBus、低电平有效/高电平有效、模拟电压、开漏、PWM、SPI、2 线串行和并行–串行。