LM2901YQ5T

Overview

The LM2901YQ5T is an automotive-grade, low-power quad voltage comparator manufactured by STMicroelectronics. It features four independent precision comparators designed for single or split supply operation within a wide voltage range of 2 V to 36 V. The device operates with a typical supply current of 1.1 mA and includes input common-mode voltage capability that extends to the negative rail. It utilizes a QFN-16 surface-mount package and supports CMOS, DTL, ECL, MOS, and TTL output compatibility.

Feature Summary

• Automotive grade qualification ensuring reliability in vehicle applications
• Low power consumption with minimal supply current draw
• Wide single supply voltage range supporting diverse power environments
• Input common-mode voltage range includes the negative rail

Applications

• Automotive electronic systems requiring robust signal comparison
• Voltage monitoring circuits in battery management systems
• Threshold detection in industrial control modules
• Signal conditioning interfaces for sensor data acquisition

Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors or certified partners. Confirm AEC-Q100 qualification status matches specific project requirements. Ensure packaging specifications align with automated assembly processes. Review datasheet revisions for any updates to electrical characteristics or recommended operating conditions prior to final design integration.

Selection Notes

Select this component when automotive reliability standards are mandatory alongside low power constraints. The QFN-16 package offers compact footprint advantages for space-constrained designs. Consider the wide input common-mode range for applications involving signals near ground potential. Evaluate thermal performance requirements based on the specific PCB layout and ambient operating temperatures expected in the final application environment.

Part Context

This part belongs to the LM2901B series of analog comparators from STMicroelectronics. It represents the automotive-qualified variant of the standard LM2901 family, offering enhanced durability for harsh environments. The YQ5 suffix indicates specific packaging and qualification attributes distinct from commercial grade counterparts like the LM2901D or LM2901YDT.

Replacement Considerations

LM2901BYQ5T serves as a direct functional substitute within the same automotive-qualified series. Commercial equivalents such as LM2901YDT lack the required automotive certification. Verify pinout compatibility and electrical parameter tolerances before substituting with non-ST components.