LM2901BYQ5T

Overview

The LM2901BYQ5T is an automotive-grade, low-power quad voltage comparator manufactured by STMicroelectronics. It features four independent channels housed in a QFN-16 package for surface mount installation. The device operates on a single supply voltage ranging from 2 V to 36 V or dual supplies of ±1 V to ±18 V. Key electrical parameters include a maximum operating supply current of 2.5 mA and an output current capability of 20 mA per channel. Input characteristics specify an input offset voltage of 4 mV and an input bias current of 200 nA. The component supports CMOS, DTL, ECL, MOS, and TTL compatible outputs and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Automotive grade qualification ensuring reliability for vehicle applications
• Low power consumption design suitable for energy-efficient systems
• Wide single or dual supply voltage operation flexibility
• CMOS, DTL, ECL, MOS, and TTL logic compatibility

Applications

• Automotive electronic control units
• Voltage monitoring circuits
• Signal conditioning interfaces

Procurement Notes

Verify the specific suffix Q5T against official STMicroelectronics documentation to confirm package type and automotive qualification status. Ensure the ordering part number matches the required QFN-16 configuration. Cross-reference with authorized distributors to confirm availability and authenticity. Check for any recent product change notifications that may affect specifications or packaging details before finalizing procurement decisions.

Selection Notes

Select this component when designing automotive systems requiring multiple independent comparators with low power constraints. The wide supply voltage range accommodates various automotive bus architectures. Ensure the application does not require a shutdown function, as this model lacks one. Verify that the input offset voltage and bias current meet the precision requirements of the target circuit. Confirm thermal management needs align with the specified operating temperature range.

Part Context

This device belongs to the LM2901B series of analog comparators. It shares functional similarities with other automotive-grade comparators but is distinct due to its quad-channel configuration and specific QFN-16 packaging. The series is designed for general-purpose voltage comparison tasks in harsh environments. It differs from operational amplifiers like the LM2902B by lacking rail-to-rail input/output capabilities and having different bandwidth characteristics.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data.