ADM1034ARQ-REEL7

Overview

The ADM1034ARQ-REEL7 is a thermal monitor and fan speed controller manufactured by Analog Devices Inc. It integrates one local and two remote temperature sensing channels with ±1°C accuracy, supporting fast measurement rates up to 64 per second. The device features an SMBus interface compliant with versions 2.0, 1.1, and 1.0, allowing for programmable over/undertemperature limits and fault queue configuration. It includes a fan speed controller with look-up table options for temperature-to-fan speed control, providing FAN_FAULT output and THERM input for PROCHOT assertions. Operating on a 3.0 V to 5.5 V supply, it is housed in a small 16-lead QSOP package.

Feature Summary

• Integrates dual-channel remote and single local temperature sensing with high accuracy
• Supports SMBus communication with configurable address and alert outputs
• Provides programmable fan speed control using look-up tables or linear options

Applications

• Desktop and notebook personal computers
• Embedded systems requiring thermal management
• Telecommunications equipment cooling control
• LCD projectors with active thermal regulation

Procurement Notes

Verify the specific suffix and manufacturer source when ordering, as this component has been produced by both Analog Devices and ON Semiconductor. Confirm the package type matches the design requirements, as variations exist between QSOP and SSOP footprints across different production batches. Ensure compatibility with existing SMBbus addresses and voltage levels before integration into the system design.

Selection Notes

Select this component for applications requiring precise multi-zone thermal monitoring and automated fan regulation. It is suitable for designs needing ACPI-compatible temperature报警 and CPU throttling signals via the THERM pin. Consider the available look-up table configurations if non-linear fan speed response is required based on temperature thresholds.

Part Context

This part belongs to the ADM1034 family of thermal monitors and fan controllers. It serves as a dedicated solution for managing heat dissipation in computing and telecommunications hardware. The device replaces discrete thermal sensing and control circuits, simplifying board layout while providing robust protection against overheating through integrated comparators and digital interfaces.

Replacement Considerations

ADM1034ARQZ-REEL (ON Semiconductor version) shares identical functional descriptions but may differ in physical footprint or electrical characteristics; verify pinout compatibility before substitution.