ADT7476A - ON Semiconductor

ADT7476A Remote Thermal Controller and Voltage Monitor

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 u.

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
• Thermal Protection Feature via THERM Output
• Monitors Performance Impact of Intel® Pentium® 4 Processor
• Thermal Control Circuit via THERM Input
• 3-wire and 4-wire Fan Sp.