LM3710XQMMX-308/NOPB

Supervisors Overview

The LM3710XQMMX-308/NOPB is an automotive-grade microprocessor supervisory circuit manufactured by Texas Instruments. It integrates a power fail input, low line output, manual reset capability, and a watchdog timer within a compact VSON package. Designed for high reliability in vehicle systems, the device monitors supply voltages to ensure proper system initialization and operation. The specific suffix indicates a 3.08V threshold voltage for the monitored rail, providing precise supervision for automotive logic and memory circuits.

Supervisors Feature Summary

• Integrates power fail detection with low line output for comprehensive voltage monitoring
• Includes manual reset functionality allowing external control over system restart states
• Features an internal watchdog timer to detect software malfunctions and trigger recovery
• Automotive qualification ensures robust performance under harsh environmental conditions

Supervisors Applications

• Automotive engine control units requiring reliable power supervision
• Infotainment systems needing watchdog protection against software hangs
• Body control modules utilizing manual reset inputs for service diagnostics
• Telematics units demanding low line output for battery management

Supervisors Procurement Notes

Verify the exact suffix configuration matches the required threshold voltage and packaging style before ordering. Confirm automotive grade compliance if the application demands AEC-Q100 certification. Check for lead time variations as automotive components may have longer production cycles than commercial grades. Ensure the NOPB designation confirms lead-free and RoHS compliance for modern assembly processes.

Supervisors Selection Notes

Select this component when a single IC solution is needed for both power fail detection and watchdog timing in automotive environments. Compare threshold voltages carefully to match the specific supply rail being monitored. Consider the VSON package size constraints relative to available PCB real estate. Evaluate the need for manual reset inputs versus automatic-only reset behaviors based on system safety requirements.

Supervisors Part Context

This part belongs to the LM3710 family of microprocessor supervisory circuits from Texas Instruments. The family provides essential protection features for digital systems by monitoring voltage levels and managing reset states. The XQ variant specifically denotes automotive qualification, distinguishing it from standard commercial versions which may lack extended temperature range or reliability testing standards required for vehicle integration.

Supervisors Replacement Considerations

LM3710YQMM-232/NOPB offers similar functionality but with a different threshold voltage (2.32V vs 3.08V). Verify that the alternative threshold aligns with the target supply voltage before substitution. Other family members like LM3712 provide separate outputs but may require additional board space.