LM2903ZQDRQ1

Overview

The LM2903ZQDRQ1 is an automotive-grade dual differential comparator from Texas Instruments, part of the LM2903-Q1 family. It operates on a single or dual supply ranging from 2V to 36V. The device features open-drain outputs compatible with TTL, MOS, and CMOS logic families. It is AEC-Q100 qualified for Grade 1 applications, supporting an ambient operating temperature range of -40°C to +125°C.

Feature Summary

• AEC-Q100 qualified for Grade 1 automotive environments
• Wide supply voltage operation from 2V to 36V
• Open-drain output configuration for flexible logic interfacing
• Differential input voltage range matches maximum rated supply

Applications

• Automotive HEV/EV power train systems
• Infotainment and instrument cluster circuits
• Body control module signal processing

Procurement Notes

Verify the specific suffix 'Z' against the manufacturer's official orderable addendum to confirm package type and availability. Ensure the component meets the required AEC-Q100 Grade 1 specifications for your target application environment.

Selection Notes

Select this component when high-voltage tolerance up to 36V is required in an automotive setting. The open-drain output allows easy level shifting between different logic voltage domains. Verify that the SOIC-8 package dimensions fit the PCB layout constraints.

Part Context

This device belongs to the LM2903-Q1 family of dual comparators designed for robust performance in harsh automotive conditions. It serves as a standard solution for voltage monitoring and threshold detection where wide supply ranges are necessary.

Replacement Considerations

LM2903BQDRQ1: Offers improved ESD protection and lower offset voltage while maintaining pin compatibility.