ADM1034ARQZ-REEL

Overview

The ADM1034ARQZ-REEL is a thermal monitor and fan speed controller manufactured by onsemi. It features one local and two remote temperature channels with ±1°C accuracy. The device supports SMBus 2.0, 1.1, and 1.0 interfaces and includes a look-up table for temperature-to-fan speed control in linear or discrete modes. Operating voltage ranges from 3.0 V to 5.5 V.

Feature Summary

• Dual remote and single local temperature sensing channels
• SMBus 2.0 interface with ARP-capable and fixed address modes
• Programmable fan speed control via look-up table
• Fail-safe overtemperature comparator output

Applications

• Desktop and Notebook PCs
• Embedded Systems
• Telecommunications Equipment
• LCD Projectors

Procurement Notes

Verify the specific ordering suffix REEL against current manufacturer documentation to confirm tape-and-reel packaging specifications. Confirm that the component remains active or check for end-of-life notices prior to final design approval. Ensure compatibility with existing system power rails and communication protocols.

Selection Notes

Select this component when precise thermal monitoring of multiple diodes is required alongside automated fan regulation. The integrated look-up table simplifies thermal management logic compared to software-only solutions. Verify that the 16-lead QSOP package fits within the available board space constraints.

Part Context

This part belongs to the ADM1034 series of thermal monitors. It succeeds earlier models like the ADM1030 by adding a second remote channel and enhanced SMBus capabilities. The device integrates analog multiplexing and ADC functions specifically optimized for microprocessor cooling applications.

Replacement Considerations

ADM1034ARQZ