ADM1033ARQZ-REEL

Overview

The ADM1033ARQZ-REEL is a thermal monitor and fan speed controller featuring one local and one remote temperature channel. It provides ±1°C accuracy for both channels and supports SMBus 2.0, 1.1, and 1.0 interfaces. The device operates on a 3.0 V to 5.5 V supply and includes a look-up table for temperature-to-fan speed control in linear or discrete modes. It utilizes a 16-lead QSOP package.

Feature Summary

• Monitors local ambient and remote diode temperatures with high accuracy
• Controls cooling fan speed using programmable look-up tables
• Supports SMBus 2.0 ARP-capable and fixed/discoverable addressing modes
• Provides fail-safe overtemperature comparator and fan stall detection outputs

Applications

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

Procurement Notes

Verify the specific ordering suffix matches the required package and tape/reel configuration. Confirm that the component is sourced from authorized distributors to ensure authenticity. Check for any end-of-life notices or production change notifications relevant to this specific revision before finalizing procurement plans.

Selection Notes

Select this component when system design requires integrated thermal monitoring and active fan control without CPU software intervention. It is suitable for applications needing precise temperature tracking via remote diodes and flexible fan speed profiles. Ensure the host system supports the required SMBus protocol version and voltage levels.

Part Context

This part belongs to the ADM1033 series of hardware monitors manufactured by onsemi. It is designed specifically for microprocessor-based systems to manage thermal conditions. The device integrates analog-to-digital conversion and serial communication capabilities into a single compact surface-mount package.

Replacement Considerations

Check for ADM1033 variants with different package options or pin configurations if physical constraints differ. Verify compatibility with existing SMBus addresses and register maps when substituting.