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ADT7476A Datasheet Remote Thermal Controller And Voltage Monitor

Manufacturer: onsemi

Overview: DATA SHEET www.onsemi.com Remote Thermal Controller and Voltage Monitor ADT7476A The ADT7476A controller is a thermal monitor and multiple PWM fan controller for noise-sensitive or power-sensitive applications requiring active system cooling. The ADT7476A can drive a fan using either a low or high frequency drive signal and can monitor the temperature of up to two remote sensor diodes plus its own internal temperature. The part also measures and controls the speed of up to four fans, so the fans operate at the lowest possible speed for minimum acoustic noise. The automatic fan speed control loop optimizes fan speed for a given temperature. The effectiveness of the system’s thermal solution can be monitored using the THERM input. The ADT7476A also provides critical thermal protection to the system using the bidirectional THERM pin as an output to prevent system or component overheating.

Key Features

  • Monitors Up to Five Voltages.
  • Improved TACH and PWM Performance.
  • Controls and Monitors Up to Four Fans.
  • High and Low Frequency Fan Drive Signal.
  • One On-Chip and Two Remote Temperature Sensors.
  • Extended Temperature Measurement Range Up to 191°C.
  • Automatic Fan Speed Control Mode Controls System Cooling Based on Measured Temperature.
  • Enhanced Acoustic Mode Dramatically Reduces User Perception of Changing Fan Speeds.
  • T.

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