PDF《Product Overview》

Product Overview ADT7473: Remote Thermal Monitor and Fan Controller For complete documentation, see the data sheet.

The ADT7473/ADT7473-1 controller is a thermal monitor and multiple PWM fan controller for noise sensitive or power sensitive applications requiring active system cooling. The ADT7473/ADT7473-1 can drive a fan using either a low or high frequency drive signal, monitor the temperature of up to two remote sensor diodes plus its own internal temperature, and measure and control the speed of up to four fans so they operate at the lowest possible speed for minimum acoustic noise. Features ? Controls and monitors up to

4 fans ? High and low frequency fan drive signal ?

1 on-chip and

2 remote temperature sensors ? Series resistance cancellation on the remote channel ? Extended temp measurement range, up to 191°C ? Dynamic TMIN control mode optimizes system acoustics intelligently ? 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 ? Thermal control circuit via THERM input For more features, see the data sheet Applications End Products ? Thermal Management ? Notebook and Desktop Computers ? Servers ? Game Consoles ? RFID Readers Part Electrical Specifications Product Compliance Status Data Transmission Standard ICC Max (mA) VCC Min (V) VCC Max (V) T Min (°C) T Max (°C) Package Type ADT7473ARQZ-1RL Pb-free Halide free Active SMBus

3 3 3.6 -40

125 QSOP-16 ADT7473ARQZ-REEL Pb-free Halide free Active SMBus

3 3 3.6 -40

125 QSOP-16 Application Diagram For more information please contact your local sales support at www.onsemi.com. Created on: 10/23/2017