EmbeddedRelated.com
TL331LVDBVR

TITL331LVDBVR

Texas Instruments
Comparator Standard (General Purpose) Open-Collector, Rail-to-Rail SOT-23-5
Active29,697 in stock

Overview

The TL331LVDBVR is a low-voltage general-purpose comparator featuring an open-drain output and rail-to-rail input capability. Operating from a wide supply range of 1.65V to 5.5V, it is designed for low power consumption with a typical quiescent current of only 25 uA.

Why Choose This Part

The integrated power-on-reset (POR) ensures the output remains in a known high-impedance state until the supply voltage reaches the minimum threshold, preventing glitches during startup. Its failsafe inputs allow for signals up to 5.5V regardless of the supply voltage, providing robust protection in multi-rail systems.

Applications

Threshold Detection
Used in battery-powered systems to monitor voltage levels and trigger alerts when reaching specific thresholds.
Zero-Crossing Detectors
Ideal for timing circuits and phase control in power electronics due to its rail-to-rail input stage.
Level Shifting
The open-drain output allows the device to interface between different logic voltage levels up to 5.5V.
Window Comparators
Combining two units enables precise monitoring of a signal within a specific voltage range for industrial sensors.

Key Specifications

Type Standard (General Purpose)
Output Type Open-Collector, Rail-to-Rail
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
CMRR, PSRR (Typ) 65dB CMRR, 80dB PSRR
Number of Elements 1
Operating Temperature -40degC ~ 125degC
Current - Output (Typ) 100mA @ 5V
Propagation Delay (Max) 600ns (Typ)
Supplier Device Package SOT-23-5
Current - Quiescent (Max) 35uA
Current - Input Bias (Max) 5pA @ 5V
Voltage - Input Offset (Max) 2mV @ 5V
Voltage - Supply, Single/Dual (+/-) 1.65V ~ 5.5V

Getting Started

To evaluate this component, use a SOT-23-5 breakout board to interface with standard 0.1-inch breadboards. Ensure a 0.1 uF decoupling capacitor is placed close to the VDD pin and select an appropriate pull-up resistor for the open-drain output based on your required switching speed.

Also Consider

MCP6541 MCHPMicrochip Technology - Provides a push-pull output stage if an external pull-up resistor is not desired.