ADT7470ARQZ-REEL Datasheet PDF - ADI

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