LMC7211BIM5/HFLF

Overview

The LMC7211BIM5/HFLF is a single-channel CMOS analog comparator from Texas Instruments, housed in a SOT-23-5 surface-mount package. It operates within a supply voltage range of 2.7 V to 15 V and draws a quiescent current of 14 µA. The device features rail-to-rail input capability with a common-mode voltage extending to -200 mV below ground. Key electrical specifications include a typical propagation delay of 8 µs, an input offset voltage of 5 mV, and an input bias current of 0.4 pA. It provides a push-pull output capable of sourcing or sinking 45 mA, ensuring robust drive capability for digital interfaces.

Feature Summary

• Rail-to-rail input stage allowing signal detection near the negative supply rail
• Push-pull output architecture providing active high and low states without external pull-up resistors
• Ultra-low power consumption suitable for battery-operated applications
• High input impedance minimizing loading effects on source circuits

Applications

• Threshold detection in portable electronic devices
• Voltage monitoring systems requiring low standby current
• Signal conditioning for microcontroller input interfaces
• Battery management system level sensing

Procurement Notes

Verify the specific suffix HFLF against the manufacturer's official documentation to confirm packaging details and compliance status. Ensure the component matches the required SOT-23-5 footprint and pinout configuration for your PCB design. Cross-reference the datasheet revision date to validate electrical parameters against your system requirements. Confirm availability status as distribution listings may vary.

Selection Notes

Select this component when a single comparator with rail-to-rail inputs and a push-pull output is required. It is appropriate for designs needing low quiescent current under 14 µA. Consider the 8 µs propagation delay for timing-sensitive applications. The SOT-23-5 package offers space efficiency for compact layouts. Evaluate the 45 mA output drive strength against load requirements.

Part Context

This part belongs to the LMC7211 series of tiny CMOS comparators. The series is characterized by low power operation and high voltage tolerance up to 15 V. Variants such as LMC7211BIM/NOPB offer similar functionality in different packages like SOIC-8. The family supports general-purpose comparison tasks with consistent electrical performance across temperature ranges.

Replacement Considerations

LMC7211BIM5/NOPB is a direct functional equivalent with identical electrical characteristics. LMC7211AIM5X/NOPB offers comparable performance with potentially tighter offset voltage specifications. Verify pin compatibility and thermal requirements before substitution.