ADT7467ARQ

Overview

The ADT7467ARQ is a dBCOOL thermal monitor and fan controller designed for noise-sensitive or power-sensitive applications requiring active system cooling. It integrates one on-chip temperature sensor and supports two remote diode sensors, enabling comprehensive thermal monitoring across multiple zones. The device features an automatic fan speed control loop that optimizes fan operation based on measured temperatures to minimize acoustic noise. It includes dynamic TMIN control mode for intelligent thermal management and provides critical thermal protection via the bidirectional THERM pin.

Feature Summary

• Controls and monitors up to four fans with support for low or high frequency drive signals
• Monitors temperature using one internal sensor and up to two remote sensor diodes
• Features dynamic TMIN control mode to intelligently manage system thermals and acoustics
• Provides thermal protection through the bidirectional THERM pin output

Applications

• Noise-sensitive computer systems
• Power-sensitive electronic equipment
• Applications requiring active system cooling
• Intel Pentium 4 processor thermal monitoring

Procurement Notes

Verify the exact suffix against official Analog Devices documentation, as 'ARQ' may indicate specific packaging or tape-and-reel configurations distinct from standard tube variants. Confirm RoHS compliance status and ensure the component matches the required operating temperature range for your specific application environment before procurement.

Selection Notes

Select this component when active cooling noise reduction is critical. It is suitable for designs requiring precise thermal management of multiple fans and remote sensors. Ensure the design accommodates the SMBus interface requirements and utilizes the extended temperature measurement range capabilities if high-temperature monitoring is needed.

Part Context

The ADT7467 belongs to the dBCOOL family of thermal controllers from Analog Devices. This series focuses on optimizing acoustic performance in computing and industrial applications by dynamically adjusting fan speeds based on real-time thermal data. The device complements other thermal management solutions by providing integrated sensing and control logic.

Replacement Considerations

Check for direct substitutes within the ADT7467 family, such as the ADT7467ARQZ, which may differ only in packaging format. Verify compatibility with existing PCB footprints and firmware interfaces before substituting.