LP311PSRE4

Overview

The LP311PSRE4 is a single low-power strobed differential comparator manufactured by Texas Instruments. It operates within a supply voltage range of 3.5 V to 30 V and draws a typical operating current of 7.5 mA. The device features a response time of 1200 ns and a maximum input offset voltage of 10 mV. It utilizes an 8-pin PSOP (Small Outline Package) housing with a lead-free finish, indicated by the E4 suffix.

Feature Summary

• Integrates a strobe function for precise output control
• Supports differential input configurations
• Designed for low power consumption applications

Applications

• Voltage monitoring systems
• Over-voltage protection circuits
• Window comparator designs

Procurement Notes

Verify the specific package variant against the datasheet, as suffixes may indicate environmental compliance or tape-and-reel packaging variations rather than functional changes. Confirm that the E4 designation aligns with RoHS requirements for your assembly process. Ensure the ordering part number matches the exact pinout and thermal characteristics required for your PCB layout.

Selection Notes

Select this component when a single comparator with integrated strobing capability is required. It is suitable for applications needing low quiescent current without sacrificing basic speed performance. Consider the PSOP package constraints regarding thermal dissipation and board space compared to larger packages like DIP or SOIC.

Part Context

This part belongs to the LM/LP311 family of comparators, which are industry-standard devices for general-purpose comparison tasks. The LP311 variant specifically optimizes power consumption compared to the standard LM311, making it appropriate for battery-operated or energy-sensitive designs while maintaining compatibility with TTL and CMOS logic outputs.