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
