LM2901AVQDRCM

Overview

The LM2901AVQDRCM is a quadruple automotive voltage comparator from the LM2901x-Q1 family, manufactured by Texas Instruments. It features four independent comparators designed for single or dual supply operation within a voltage range of 2V to 32V. The device operates over an ambient temperature range of -40°C to +125°C and is qualified under AEC-Q100 Grade 1 standards. Key electrical characteristics include a typical total supply current of 1mA to 2.5mA, a maximum input offset voltage of ±4mV across the full temperature range, and a typical response time of 1.3µs. The outputs are compatible with TTL, MOS, and CMOS logic families.

Feature Summary

• AEC-Q100 qualified for Grade 1 automotive applications with extended temperature support
• Quad differential voltage comparison capability with open-drain outputs
• Wide common-mode input voltage range extending down to ground potential
• Low quiescent supply current that remains stable regardless of supply voltage variations

Applications

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

Procurement Notes

Verify the specific suffix 'CM' against the manufacturer's official orderable addendum to confirm package type and tape-and-reel specifications. Ensure the component meets the required AEC-Q100 Grade 1 qualification for your target application environment. Cross-reference the datasheet revision history to confirm compatibility with existing design implementations.

Selection Notes

Select this component when high reliability in automotive environments is required alongside low power consumption. The wide supply voltage range allows flexibility in system design without level shifting. Consider the open-drain output configuration for implementing wired-AND logic structures. Verify thermal management requirements based on the specific package variant selected.

Part Context

This part belongs to the LM2901x-Q1 family, which serves as a standard solution for quadruple voltage comparison in harsh environments. It succeeds earlier industry-standard comparers while maintaining pinout compatibility. The family includes variants like the LM2901B-Q1 and LM2901V-Q1, offering trade-offs between speed, offset voltage, and ESD robustness.

Replacement Considerations

LM2901B-Q1 offers improved ESD performance and lower offset voltage but requires verification of supply voltage limits. LM2901V-Q1 provides similar electrical characteristics with a 32V maximum supply rating. LM2903x-Q1 serves as a dual-channel alternative if fewer comparators are needed.