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屬于集成電路（IC） > 熱管理。亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的ADT7470ARQ熱管理熱管理 IC 是根據(jù)溫度控制電路電源的半導(dǎo)體器件。這些 IC 的功能包括風(fēng)扇控制、硬件監(jiān)控器、溫度監(jiān)控系統(tǒng)、熱監(jiān)控器、熱電偶放大器、熱電偶調(diào)節(jié)器和溫度計–溫控器。檢測溫度范圍為 -260℃ 至 +1800℃，輸出類型有 I2C、SMBus、低電平有效/高電平有效、模擬電壓、開漏、PWM、SPI、2 線串行和并行–串行。