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( File format: PDF, 469.0kB )
Remote Thermal Controller and Voltage Monitor
ON Semiconductor Corp

Description
The ADT7466 controller is a complete thermal monitor and dual fan controller for noise-sensitive applications requiring active system cooling. It can monitor two analog voltages or the temperature of two thermistors, plus its own supply voltage. It can monitor the temperature of up to two remote sensor diodes, plus its own internal temperature. It can measure and control the speed of up to two fans so that they operate at the lowest possible speed for minimum acoustic noise. The automatic fan speed control loop optimizes fan speed for a given temperature.
Features
Monitors 2 Analog Voltages or Thermistor Temperature Inputs 1 On-Chip and 1 Remote Temperature Sensor with Series Resistance Cancellation Controls and Monitors Up To 2 Fan Speeds 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 PROCHOT input 3-wire Fan Speed Measurement Limit Comparison of all Monitored Values




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