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LM339PWRG3

TILM339PWRG3

Texas Instruments
Analog Comparators Quad Diff Comparator
11,847 in stock

Overview

The LM339PWRG3 is a quad-channel differential comparator designed to operate from a single power supply over a wide range of voltages. It features four independent voltage comparators with an open-collector output, allowing for easy level shifting and logical wired-AND connections.

Why Choose This Part

The quad-package configuration offers high component density and reduced PCB footprint compared to using multiple single comparators. Its open-collector outputs provide design flexibility for interfacing with different logic levels, including TTL, DTL, and CMOS.

Applications

Limit Threshold Detection
Used in industrial monitoring to trigger logic signals when a sensor voltage exceeds or falls below a specific reference level.
Zero-Crossing Detectors
Ideal for identifying the point where an AC signal crosses zero for timing and synchronization circuits.
Oscillators and Multivibrators
Can be configured with external resistors and capacitors to create square-wave generators or clock sources.
Battery Voltage Monitoring
Commonly employed in low-battery indicator circuits to drive an LED or signal a microcontroller when voltage drops below a safe threshold.

Getting Started

To evaluate this part, use a standard TSSOP-14 breakout board for breadboard prototyping. Ensure a pull-up resistor is connected to the output, as the open-collector architecture cannot drive high without one. Refer to the Texas Instruments datasheet for stability guidelines when driving capacitive loads.

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