LMV331ICT

Overview

The LMV331ICT is a single-channel low-power analog comparator from STMicroelectronics, part of the LMV331 series. It operates within a supply voltage range of 2.7 V to 5 V and consumes approximately 20 μA of quiescent current. The device features an open-drain output capable of sinking up to 93 mA, with a typical propagation delay of 200 ns. It supports input common mode voltages that include ground and offers ESD tolerance of 2 kV HBM. Packaged in a compact SC-70-5 surface-mount format measuring 2.2 mm x 1.35 mm x 1 mm, it functions reliably across temperatures from -40°C to +85°C.

Feature Summary

• Low power consumption suitable for battery-operated systems
• Open-drain output allows flexible logic level interfacing
• Input common mode range includes ground potential
• Compact SC-70-5 package for space-constrained designs

Applications

• Overcurrent protection circuits in motor drives
• Low-voltage signal conditioning and threshold detection
• Battery management system monitoring
• General-purpose voltage comparison in portable electronics

Procurement Notes

Verify the specific suffix 'ICT' corresponds to the SC-70-5 tape-and-reel packaging configuration. Confirm the operating temperature grade matches the application requirements, as industrial variants may extend to +125°C while standard versions are rated to +85°C. Ensure ESD handling procedures are followed due to the small form factor and sensitivity. Cross-reference the manufacturer datasheet for exact pinout and electrical limits before integration.

Selection Notes

Select this component when low supply voltage operation between 2.7 V and 5 V is required alongside minimal current draw. The open-drain output is advantageous for interfacing with different logic families or implementing wired-OR configurations. Consider the 200 ns propagation delay for timing-sensitive applications. The SC-70-5 package is ideal where board real estate is limited compared to larger DIP or SOIC options.

Part Context

The LMV331 is the single-channel version of the LMV3xx family, which also includes dual (LMV393) and quad (LMV339) comparators. These devices serve as low-voltage successors to the industry-standard LM339/LM393 series, offering reduced power consumption and compatibility with modern low-voltage digital logic. The ICT suffix denotes the specific surface-mount package and reel packaging type used for automated assembly.

Replacement Considerations

Direct functional equivalents include the LMV393 (dual channel) and LMV339 (quad channel) for multi-channel needs. For pin-compatible replacements, verify if other manufacturers offer comparable low-voltage comparators with open-drain outputs and similar propagation delays.