LM2901QPWRG4Q1

Overview

The LM2901QPWRG4Q1 is a quad differential analog comparator from Texas Instruments, designed for automotive applications with AEC-Q100 qualification. It operates on a single supply voltage ranging from 2 V to 36 V or dual supplies of ±1 V to ±18 V. The device features four independent channels in a 14-TSSOP surface-mount package. Key electrical specifications include a maximum input offset voltage of 7 mV at 5 V, a maximum input bias current of 0.25 µA at 5 V, and a typical output sink current of 20 mA. The quiescent supply current is typically 2.5 mA, with a response time of 1.3 µs. It functions within an extended temperature range of -40°C to +125°C.

Feature Summary

• Automotive-grade reliability certified under the AEC-Q100 standard for robust performance in vehicle environments.
• Quad-channel architecture integrates four independent differential comparators into a single compact integrated circuit.
• Wide single-supply operation capability supports low-voltage systems starting from 2 V up to 36 V.
• CMOS/TTL-compatible open-collector outputs facilitate direct interfacing with various digital logic families.

Applications

• Automotive sensor signal conditioning
• Battery management system monitoring
• Over-voltage and under-voltage detection circuits

Procurement Notes

Verify the specific suffix G4 indicates RoHS compliance and manufacturing location details as per the manufacturer's latest documentation. Confirm that the Q1 designation aligns with your project's automotive qualification requirements. Ensure the TSSOP-14 package dimensions match your PCB footprint constraints. Cross-reference the datasheet revision history for any recent design or specification updates before finalizing procurement orders.

Selection Notes

Select this component when high channel density is required alongside automotive durability standards. The wide supply voltage range makes it suitable for varying automotive bus conditions. Consider the 1.3 µs response time against application speed requirements. Verify that the open-collector output configuration meets the pull-up resistor requirements of the downstream logic interface.

Part Context

This part belongs to the LM2901-Q1 family of automotive quad comparators. It shares functional similarities with other members like the LM2901VQPWRG4Q1 but may differ in specific testing or packaging nuances defined by the manufacturer. The series is engineered to replace legacy discrete comparator solutions with a more integrated approach for space-constrained automotive designs.

Replacement Considerations

Direct pin-to-pin replacements within the same family include LM2901VQPWRG4Q1. For alternative packages, consider LM2901QDRQ1 which utilizes SOIC-14. Verify that substitute parts maintain the same AEC-Q100 qualification level and electrical characteristics such as input offset voltage and supply current limits.