LP339M

Overview

The LP339M is an ultra-low power quad voltage comparator manufactured by Texas Instruments. It integrates four independent comparators designed for single-supply operation, typically drawing 60 µA of quiescent current. The device features a wide supply voltage range from 2 V to 36 V or ±1 V to ±18 V. It utilizes an open-collector output configuration and operates within a commercial temperature range of 0°C to 70°C. The component is housed in a 14-pin SOIC package.

Feature Summary

• Ultra-low power consumption with typical quiescent current of 60 µA
• Wide single-supply voltage capability up to 36 V
• Open-collector outputs compatible with various logic families

Applications

• Battery-powered monitoring systems
• Low-power signal conditioning circuits
• Threshold detection applications

Procurement Notes

Verify the specific suffix (e.g., NOPB) against the datasheet revision to ensure compliance with RoHS standards and material declarations. Confirm that the open-collector output architecture aligns with the pull-up requirements of the target circuit design before finalizing procurement.

Selection Notes

Select this component when low static current draw is critical compared to standard LM339 variants. Ensure the application does not require rail-to-rail output swing, as the open-collector design necessitates external pull-up resistors to achieve high logic levels.

Part Context

This part belongs to the LP339 family of ultra-low power comparators. It serves as a direct pin-compatible alternative to the standard LM339 series, offering significantly reduced power consumption while maintaining similar functional characteristics and package dimensions for easy retrofitting in existing designs.

Replacement Considerations

LP339M/NOPB is a verified lead-free replacement variant.