LM87CIMT/NOPB

Thermal Management Overview

The LM87CIMT/NOPB is a hardware monitoring integrated circuit manufactured by Texas Instruments, designed for system temperature and voltage supervision. It features an internal and external sensor configuration with I2C/SMBus serial output capabilities. The device operates within a supply voltage range of 2.8V to 3.8V and supports a wide operating temperature range from -40°C to +125°C. Accuracy specifications include ±3°C typical for local sensing and ±4°C maximum for remote sensing. The component is housed in a 24-TSSOP package and integrates topology elements such as ADC, comparator, fan speed counter, and register groups.

Thermal Management Feature Summary

• Supports both internal and external temperature sensing configurations for comprehensive thermal monitoring.
• Provides digital output via 2-wire serial interface compatible with I2C and SMBus protocols.
• Integrates multiple functional blocks including analog-to-digital conversion, comparators, and fan speed counters.

Thermal Management Applications

• System hardware monitoring in industrial equipment
• Temperature supervision in server and networking infrastructure
• Thermal management in consumer electronics

Thermal Management Procurement Notes

Verify the specific suffix 'CIMT' against the manufacturer's current datasheet to confirm pinout and electrical characteristics, as variations exist within the LM87 family. Confirm RoHS compliance status through official documentation. Check for obsolescence notices or lifecycle changes directly from Texas Instruments before finalizing procurement plans.

Thermal Management Selection Notes

Select this component when dual-zone temperature monitoring with high accuracy is required alongside fan control functionality. Ensure the design environment supports the 2.8V to 3.8V supply voltage range. Verify that the host controller can interface with the I2C/SMBus protocol used by the device. Consider the 24-TSSOP package dimensions for PCB layout constraints.

Thermal Management Part Context

The LM87 series comprises hardware monitor ICs widely used for supervising system health. The CIMT variant specifically denotes a commercial temperature grade version in a TSSOP package. This part belongs to the broader category of power management and thermal management ICs offered by Texas Instruments for embedded systems.

Thermal Management Replacement Considerations

Consult the Texas Instruments LM87 family cross-reference guide for direct pin-compatible alternatives. Verify that any substitute maintains the same 24-TSSOP footprint and I2C/SMBus compatibility. Ensure replacement parts meet the -40°C to +125°C operating temperature range requirement.