LM339LVDYYR

Overview

The LM339LVDYYR is a low-voltage analog comparator manufactured by Texas Instruments, designed for automotive applications. It operates within a supply voltage range of 1.65 V to 5.5 V and features a single channel with an open-drain output type. The device utilizes a SOT-23-THIN-14 package suitable for surface mount installation. Key electrical specifications include a maximum input offset voltage of 400 uV, an input bias current of 5 pA, and a propagation delay of 600 ns. It maintains a common-mode rejection ratio of 65 dB and a power supply rejection ratio of 80 dB. The component supports rail-to-rail input operation and functions reliably across a temperature range from -40 C to +125 C.

Feature Summary

• Automotive-grade qualification for reliable performance in vehicle environments
• Low-voltage operation capability down to 1.65 V for energy-efficient systems
• Rail-to-rail input stage allows full signal swing utilization
• Open-drain output configuration simplifies interfacing with various logic levels

Applications

• Automotive sensor signal conditioning
• Voltage monitoring circuits in low-power devices
• Threshold detection in battery management systems

Procurement Notes

Verify the specific suffix 'DYYR' against the manufacturer's official documentation to confirm the exact tape-and-reel packaging quantity and moisture sensitivity level. Ensure that the automotive grade designation aligns with your project's reliability requirements and environmental standards before finalizing procurement orders.

Selection Notes

Select this component when designing for constrained voltage supplies below standard 5 V thresholds while requiring automotive durability. The low input bias current makes it suitable for high-impedance source applications. Consider the SOT-23-THIN-14 footprint constraints during PCB layout planning to ensure adequate thermal dissipation and mechanical stability.

Part Context

This part belongs to the LM339LV family of low-voltage comparators. It shares functional similarities with other members but is distinguished by its specific automotive qualification and thin package variant. It serves as a specialized alternative to standard commercial-grade comparators in applications demanding higher reliability under varying thermal conditions.

Replacement Considerations

Consult official substitution guides for pin-compatible alternatives within the LM339 series. Verify that any replacement matches the 1.65 V minimum supply requirement and the SOT-23-THIN-14 package dimensions to maintain board compatibility.