LM2901BQDRQ1

Overview

The LM2901BQDRQ1 is a quad automotive comparator from Texas Instruments, designed for high-performance voltage comparison in demanding environments. It operates on a single or dual supply ranging from 2V to 36V. The device features low quiescent current of 200µA per comparator and low input bias current of 3.5nA typical. It offers an improved response time of 1µs typical and enhanced ESD protection with 2kV HBM rating. Qualified under AEC-Q100 Grade 1, it supports an ambient operating temperature range from -40°C to +125°C.

Feature Summary

• AEC-Q100 qualified for Grade 1 temperature range (-40°C to +125°C) suitable for automotive applications
• Low power consumption with supply current independent of supply voltage
• Enhanced electrostatic discharge (ESD) protection with 2kV Human Body Model rating
• Open-drain output compatible with TTL, MOS, and CMOS logic families

Applications

• HEV/EV and power train systems
• Infotainment and cluster modules
• Body control modules
• Industrial equipment
• Appliances

Procurement Notes

Verify the specific package variant (SOIC-14) and ensure the component meets the required AEC-Q100 Grade 1 specifications for your target application environment. Confirm that the open-drain output configuration aligns with your system's pull-up requirements and logic levels. Check for any functional safety documentation if your design requires ISO 26262 compliance support.

Selection Notes

Select this component when high voltage tolerance up to 36V and robust ESD protection are critical. The LM2901B-Q1 offers superior offset voltage and lower bias current compared to standard LM2901x-Q1 versions. Consider the open-drain output nature for wired-AND configurations. Ensure the PCB layout accounts for the thermal characteristics of the SOIC-14 package.

Part Context

This part belongs to the LM2901x-Q1 family of quadruple comparators. The 'B' suffix denotes an improved version with enhanced ESD performance and better electrical characteristics like lower offset voltage and bias current. It serves as a drop-in replacement for previous generations while offering higher reliability for cost-sensitive automotive designs.

Replacement Considerations

Direct replacements within the same family include LM2901-Q1, LM2901V-Q1, and LM2901AV-Q1, though they lack the specific 'B' version improvements in ESD and offset voltage.