LM81BIMTX-3

Thermal Management Overview

The LM81BIMTX-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 utilizes a TSSOP-24 package and supports active high, active low, and open drain output types. It includes an integrated watchdog timer but lacks manual reset and battery backup switching capabilities. The component functions across a temperature range of -40°C to +125°C with a typical operating current of 400 µA.

Thermal Management Feature Summary

• Provides comprehensive system monitoring through serial interface communication for ACPI compatibility.
• Integrates a watchdog timer to ensure system reliability and fault recovery.
• Supports multiple output configurations including active high, active low, and open drain signals.

Thermal Management Applications

• Microprocessor system hardware monitoring
• ACPI-compatible computer systems
• Voltage supervision in embedded controllers

Thermal Management Procurement Notes

Verify the specific suffix 'TMX' against the official datasheet to confirm tape-and-reel packaging specifications. Confirm RoHS compliance status as indicated in the manufacturer's documentation. Check for obsolescence notices or lifecycle status updates directly from Texas Instruments before procurement planning.

Thermal Management Selection Notes

Select this component when an ACPI-compatible hardware monitor with serial interface is required. Ensure the application environment stays within the specified -40°C to +125°C temperature range. Verify that the available threshold voltages match the monitored rails and that the TSSOP-24 package fits the design constraints.

Thermal Management Part Context

This part belongs to the LM81 series of supervisory circuits designed for system management. It serves as a dedicated hardware monitor for tracking power rail integrity and system health in computing applications.

Thermal Management Replacement Considerations

Consult the LM81 family datasheet for pin-compatible alternatives such as the LM81CIMT-3 or LM80 series variants if availability is an issue. Verify functional equivalence regarding serial protocol and threshold settings.