EmbeddedRelated.com
    Parts   Analog ICs  Comparators    LMV331IDCKR
LMV331IDCKR

TILMV331IDCKR

Texas Instruments
Comparator Standard (General Purpose) Open-Collector SC-70-5
NRND51,910 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The LMV331IDCKR is a single-channel, general-purpose voltage comparator featuring an open-collector output and a compact SC-70-5 footprint. Designed for low-voltage operation between 2.7V and 5.5V, it provides a cost-effective solution for signal level detection in space-constrained designs. Its low supply current of 26 microamps typical makes it well-suited for battery-powered monitoring applications.

Why Choose This Part

This comparator offers a balanced profile of low power consumption and a relatively fast 600ns propagation delay. The open-collector output allows for flexible wired-OR configurations and easy level translation, while the SC-70 package minimizes PCB surface area requirements.

Applications

Battery Level Monitoring
Triggering low-battery alerts in portable electronics when cell voltage drops below a defined threshold.
Zero-Crossing Detection
Identifying the timing of signal transitions for synchronization in power control circuits.
Logic Level Shifting
Using the open-collector output and an external pull-up resistor to interface between different logic voltage domains.
Window Comparators
Combining multiple units to monitor if a signal stays within a specific voltage range for industrial sensors.

Key Specifications

Type Standard (General Purpose)
Output Type Open-Collector
Mounting Type Surface Mount
Package / Case 5-TSSOP, SC-70-5, SOT-353
Number of Elements 1
Operating Temperature -40degC ~ 85degC
Current - Output (Typ) 84mA @ 5V
Propagation Delay (Max) 600ns
Supplier Device Package SC-70-5
Current - Quiescent (Max) 150uA
Current - Input Bias (Max) 0.25uA @ 5V
Voltage - Input Offset (Max) 7mV @ 5V
Voltage - Supply, Single/Dual (+/-) 2.7V ~ 5.5V

Getting Started

To implement this part, calculate the required pull-up resistor for the open-collector output based on your desired logic high current and speed requirements. Ensure the input common-mode voltage remains within the specified range of -0.1V to 2V when operating at lower supply voltages. Prototyping can be achieved using an SC-70 to DIP adapter board for breadboard evaluation.

LMV331 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Output Type Package Current - Output (Typ) Propagation Delay (Max) Voltage - Supply, Single/Dual (+/-) Stock
LMV331IDCKR (this part) Open-Collector TSSOP-5 84mA 600ns 2.7V 51,910
LMV331ILT (STMicroelectronics) Open-Drain SC-74A, SOT-753 93mA 550ns 2.7V 3,390

Categories

Analog ICs > Comparators