GENERAL DESCRIPTION

The ADT74701 controller is a multichannel temperature sensor and PWM fan controller and fan speed monitor for systems requiring active cooling. It is designed to interface directly to an I2C® bus. The ADT7470 can monitor up to 10 daisy-chained TMP05 temperature sensors. It can also monitor and control the speed of four fans, in automatic or in manual control loops.

FEATURES

Monitors up to 10 remote temperature sensors

Monitors and controls speed of up to 4 fans independently

PWM outputs drive each fan under software control

FULL_SPEED input allows fans to be blasted to maximum speed by external hardware

SMBALERT interrupt signals failures to system controller

Three-state ADDR pin allows up to 3 devices on a single bus

Temperature decoder interprets TMP05 temperature sensors and communicates values over I2C bus

Limit comparison of all monitored values

Supports fast I2C standard (400 kHz max)

Meets SMBus 2.0 electrical specifications(fully SMBus 1.1-compliant)

APPLICATIONS

Servers

Networking and telecommunications equipment

Desktops

ADT7470ARQ属于集成电路（IC） > 热管理。亚德诺半导体技术有限公司制造生产的ADT7470ARQ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。