LM2901BYPT

Overview

The LM2901BYPT is an automotive-grade, low-power quad voltage comparator manufactured by STMicroelectronics. It consists of four independent comparators designed for single-supply operation over a wide voltage range (+2 V to +36 V) or dual supplies (±1 V to ±18 V). The device features very low supply current of approximately 1 mA, low input bias current of 20 nA typical, and low output saturation voltage of 250 mV. It is qualified under AEC-Q100 standards and housed in a 14-TSSOP package.

Feature Summary

• Automotive grade qualification compliant with AEC-Q100 standards
• Low power consumption with supply current essentially independent of voltage
• Input common-mode voltage range includes the negative rail
• Outputs compatible with TTL, DTL, ECL, MOS, and CMOS logic families

Applications

• Automotive electronic systems requiring high reliability
• General-purpose voltage monitoring circuits
• Threshold detection applications in industrial environments

Procurement Notes

Verify the specific suffix BYPT corresponds to the 14-TSSOP package and automotive grade variant. Confirm AEC-Q100 qualification status through official STMicroelectronics documentation. Ensure compatibility with system voltage requirements ranging from 2 V to 36 V. Check for moisture sensitivity levels and recommended soldering profiles during procurement validation.

Selection Notes

Select this component when automotive reliability and low power consumption are critical. The wide single-supply voltage range simplifies design for various battery-operated or vehicle-based applications. The inclusion of the negative rail in the input common-mode range offers flexibility in signal conditioning. Verify that the TSSOP package fits the available PCB space and thermal constraints.

Part Context

The LM2901B series represents an enhanced version of the standard LM2901, offering improved electrical characteristics and a higher maximum operating voltage of 40 V. The 'Y' suffix typically denotes the automotive grade and specific packaging, while 'PT' indicates the 14-TSSOP surface-mount package. This series is part of STMicroelectronics' portfolio of precision analog components designed for robust performance in demanding environments.

Replacement Considerations

Direct substitutes include other LM2901B variants with different packages such as LM2901BYDT (SOIC-14) or LM2901BYQ5T (QFN-16), provided pinout compatibility is verified. Non-automotive equivalents like the standard LM2901PT may be considered if AEC-Q100 qualification is not required.