LM81BIMT-3

Thermal Management Overview

The LM81BIMT-3 is a serial interface ACPI-compatible microprocessor system hardware monitor manufactured by Texas Instruments. It operates within a supply voltage range of 2.8 V to 3.8 V and features threshold voltages of 2.5 V, 3.3 V, 5 V, and 12 V. The device provides active high, active low, and open drain outputs. It includes a watchdog timer but lacks manual reset and battery backup switching capabilities. Operating temperatures span from -40°C to +125°C with a typical quiescent current of 400 µA.

Thermal Management Feature Summary

• Serial interface communication for ACPI-compatible microprocessor system monitoring
• Integrated watchdog timer functionality for system reliability
• Multiple output configurations including active high, active low, and open drain

Thermal Management Applications

• Microprocessor system hardware monitoring
• ACPI-compatible system supervision
• Voltage threshold detection in embedded systems

Thermal Management Procurement Notes

Verify component status as the LM81BIMT-3 is listed as obsolete or end-of-life by the manufacturer. Confirm availability through authorized distributors or secondary market sources. Ensure compatibility with existing design specifications before procurement. Check for RoHS compliance variations across production batches. Validate package integrity upon receipt.

Thermal Management Selection Notes

Select this component for applications requiring serial interface-based system monitoring with ACPI compatibility. Consider the specific threshold voltage requirements matching the target rails. Evaluate the operating temperature range against environmental conditions. Assess the need for watchdog functionality versus simpler supervisory circuits. Verify package suitability for the intended PCB layout.

Thermal Management Part Context

Part of the LM81 series of hardware monitors designed for system supervision. Similar models include LM80 variants which offer comparable monitoring functions. The series targets microprocessor systems requiring reliable voltage tracking and fault detection. Integration into complex power management architectures is supported through serial communication protocols.

Thermal Management Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for direct replacements or functional equivalents within the LM81 family.