LM2901BQPWRQ1

Overview

The LM2901BQPWRQ1 is a quadruple automotive comparator from Texas Instruments, designed for high-reliability applications. It operates on a single supply voltage ranging from 2V to 36V or dual supplies within the same differential range. The device features an open-drain output compatible with TTL, MOS, and CMOS logic families. Key electrical characteristics include a typical quiescent current of 200µA per comparator, low input bias current of 3.5nA, and a typical propagation delay of 1µs. It is qualified under AEC-Q100 standards for Grade 1 temperature operation spanning -40°C to +125°C.

Feature Summary

• Qualified for automotive environments with enhanced ESD protection capabilities
• Low power consumption with supply current largely independent of voltage levels
• High precision performance characterized by minimal input offset voltage and bias current
• Flexible input common-mode range that includes ground potential

Applications

• Hybrid electric vehicle (HEV) and electric vehicle (EV) power train systems
• Automotive infotainment and instrument cluster circuits
• Body control module signal processing
• Industrial automation control interfaces
• Consumer appliance logic monitoring

Procurement Notes

Verify the specific package suffix 'PW' corresponds to the TSSOP-14 housing required for your PCB layout. Confirm the 'B' grade designation aligns with the necessary offset voltage and ESD specifications for your design. Ensure the Q1 suffix meets your project's automotive quality requirements. Cross-reference the datasheet revision date to confirm compatibility with your manufacturing timeline.

Selection Notes

Select this component when designing circuits requiring robust automotive-grade comparators with wide supply voltage tolerance. The B-grade variant offers superior offset voltage and lower bias current compared to standard versions. Consider the open-drain output architecture if level shifting or wired-AND logic configurations are needed. Evaluate thermal dissipation requirements based on the TSSOP-14 package thermal resistance metrics provided in the datasheet.

Part Context

This part belongs to the LM2901x-Q1 family, representing the next-generation iteration of industry-standard comparators. It provides drop-in replacement convenience while delivering improved electrical characteristics such as lower propagation delay and higher supply voltage capability. The family is engineered to offer outstanding value for cost-sensitive automotive and industrial designs without compromising reliability.

Replacement Considerations

The LM2901-Q1 serves as a direct functional alternative within the same family, though it lacks the enhanced B-grade electrical specifications. Designers should verify pinout compatibility and ensure the substitute meets the specific offset voltage and current requirements of the application.