LMV7231SQX/NOPB

Overview

The LMV7231SQX/NOPB is a hex window comparator manufactured by Texas Instruments, designed for precision analog signal monitoring. It integrates six independent comparators within a single 24-pin WQFN package, measuring 4 x 4 x 0.8 mm. The device operates on a single power supply ranging from 2.2 V to 5.5 V and features an open-drain output configuration. It provides a typical response time of 0.5 µs and includes a built-in 400 mV reference with 1.5% precision. The component supports industrial operating temperatures between -40 °C and +125 °C.

Feature Summary

• Integrates six independent comparators in a compact surface-mount package
• Features a built-in precise 400 mV reference voltage source
• Supports low-voltage single-supply operation down to 2.2 V
• Provides open-drain outputs for flexible logic interfacing

Applications

• Battery management systems requiring multi-cell voltage monitoring
• Industrial process control loop threshold detection
• Over-voltage and under-voltage protection circuits
• Temperature sensing window limit verification

Procurement Notes

Verify the specific suffix 'SQX' indicates tape-and-reel packaging when sourcing components. Confirm that the 'NOPB' designation ensures compliance with lead-free manufacturing standards and RoHS directives. Cross-reference the manufacturer datasheet to ensure the 24-WQFN footprint matches the target PCB layout requirements before finalizing procurement orders.

Selection Notes

Select this component when multiple independent voltage thresholds are required within a constrained board area. The integrated reference eliminates the need for external precision voltage sources, reducing bill-of-materials complexity. Ensure the application requires open-drain outputs and can accommodate the specified 0.5 µs propagation delay for accurate signal processing.

Part Context

This part belongs to the LMV723x series of precision analog comparators from Texas Instruments. It is distinct from operational amplifiers as it lacks internal frequency compensation, optimizing it for fast switching applications. The SQX variant specifically denotes the reel-packaged version of the square QFN package, differing from the square DFN or other package styles available in the broader family.

Replacement Considerations

LMV7231SQX-NOPB is documented as a corresponding equivalent part number.