The ADT7460 dBCOOL controller is a thermal monitor and multiple PWM fan controller for noise−sensitive applications requiring active system cooling. It can monitor the temperature of up to two remote sensor diodes plus its own internal temperature.

Features

• Controls and Monitors Up to 4 Fans

• 1 On−Chip and 2 Remote Temperature Sensors

• 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

• Monitors Performance Impact of Intel Pentium 4 Processor

• Processor Thermal Control Circuit via THERM Input

• 2−Wire and 3−Wire Fan Speed Measurement

• Limit Comparison of All Monitored Values

• Meets SMBus 2.0 Electrical Specifications (Fully SMBus 1.1−Compliant)

• This is a Pb−Free Device

APPLICATIONS

• Low Acoustic Noise PCs

• Networking and Telecommunications Equipment