MAX6641AUB96+T

Thermal Management Overview

The MAX6641AUB96+T is an SMBus-compatible temperature monitor and automatic PWM fan-speed controller manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 3.0V to 5.5V and consumes approximately 500µA of current. The device features a slim 10-pin µMAX package with dimensions of 3mm x 5mm. It provides ±1°C remote temperature accuracy between +60°C and +145°C, and ±4°C internal temperature accuracy from 0°C to +125°C. The unit supports a serial clock frequency of 100 kHz and includes an active-low over-temperature alarm output.

Thermal Management Feature Summary

• Integrated local die and remote pn junction temperature sensing capabilities
• Automatic PWM fan-speed control with programmable duty cycle characteristics
• SMBus-compatible digital interface for register access and threshold programming
• Active-low open-drain over-temperature output for system protection signals

Thermal Management Applications

• Desktop Computers
• Notebook Computers
• Workstations
• Servers
• Networking Equipment

Thermal Management Procurement Notes

Verify the specific ordering suffix '96' corresponds to the required SMBus slave address configuration before procurement. Confirm that the tape-and-reel packaging format aligns with automated assembly requirements. Ensure the component meets RoHS3 compliance standards for the intended manufacturing environment. Cross-reference the manufacturer ID and device ID registers during initial integration testing to validate authenticity.

Thermal Management Selection Notes

Select this component when precise thermal monitoring of CPU or FPGA junctions is required alongside integrated fan management. The device is suitable for systems needing noise reduction through controlled fan speed adjustments based on real-time thermal data. Consider the 10-pin µMAX package constraints for PCB layout density. Verify compatibility with existing SMBus infrastructure and logic levels before implementation.

Thermal Management Part Context

This part belongs to the MAX6641 family of thermal monitors. Variants such as MAX6641AUB90+, MAX6641AUB92+, and MAX6641AUB94+ share identical functional specifications but differ in their default SMBus slave addresses. The '96' suffix designates a specific address code (011x) allowing multiple devices to coexist on the same bus without conflict.

Thermal Management Replacement Considerations

Direct substitutes include MAX6641AUB90+, MAX6641AUB92+, and MAX6641AUB94+. These parts are functionally equivalent but require verification of the SMBus address settings to ensure bus compatibility.