ADM1033ARQZ-REEL7

Overview

The ADM1033ARQZ-REEL7 is a thermal monitor and fan speed controller featuring one local and one remote temperature channel. It operates on a 3.0 V to 5.5 V supply within a 16-lead QSOP package. The device provides ±1°C accuracy for internal sensors and supports SMBus 2.0, 1.1, and 1.0 interfaces. It includes programmable over/undertemperature limits, a fault queue, and an ALERT output. Fan control utilizes a look-up table for temperature-to-speed profiles in linear or discrete modes.

Feature Summary

• Monitors local ambient and remote diode temperatures with high accuracy.
• Controls cooling fan speed using configurable look-up tables.
• Communicates via SMBus with ARP-capable and fixed address modes.
• Provides fail-safe overtemperature comparator and fan stall detection.

Applications

• Desktop and notebook PCs
• Embedded systems
• Telecommunications equipment
• LCD projectors

Procurement Notes

Verify the specific ordering suffix matches the required tape-and-reel configuration. Confirm that the component is lead-free as indicated by the Z suffix. Ensure the package type corresponds to the 16-lead QSOP format. Check for any date code restrictions relevant to your manufacturing timeline.

Selection Notes

Select this component when system design requires integrated thermal monitoring and active fan control. It is suitable for microprocessor-based systems needing precise temperature tracking. Consider the SMBus interface requirements for master compatibility. Evaluate the need for remote sensor support versus local-only monitoring.

Part Context

This part belongs to the ADM1033 family of thermal management devices from onsemi. It serves as a dedicated controller for managing heat dissipation in electronic assemblies. The device integrates analog sensing with digital control logic to automate cooling strategies based on real-time thermal data.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.