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LM339PWR

TILM339PWR

Texas Instruments
Comparator Standard (General Purpose) Open-Collector 14-TSSOP
Active16,873 in stock
Datasheet Digi-Key Compare Prices

Overview

The LM339PWR is a quad-channel general-purpose differential comparator designed to operate from a single power supply over a wide range of voltages from 2V to 30V. It features four independent voltage comparators in a compact 14-TSSOP package, utilizing an open-collector output stage that allows for easy level shifting and wired-OR connections.

Why Choose This Part

The device provides high flexibility with a wide supply range of 2V to 30V and a low quiescent current of 2.5mA max. Its open-collector output architecture enables the user to drive loads up to 20mA and easily interface with different logic levels regardless of the VCC supply.

Applications

Limit Comparators
Monitoring sensor signals against high or low reference thresholds in industrial control loops.
Level Translators
Interfacing between different logic families by using the open-collector output with specific pull-up voltages up to 36V.
Zero-Crossing Detectors
Identifying the point where an AC signal crosses the ground reference for timing or phase control.
Oscillators and Pulse Generators
Utilizing positive feedback to create stable square wave or PWM signals for timing circuits.

Key Specifications

Type Standard (General Purpose)
Output Type Open-Collector
Mounting Type Surface Mount
Package / Case 14-TSSOP (0.173", 4.40mm Width)
Number of Elements 4
Operating Temperature 0degC ~ 70degC
Current - Output (Typ) 20mA
Supplier Device Package 14-TSSOP
Current - Quiescent (Max) 2.5mA
Current - Input Bias (Max) 0.25uA @ 5V
Voltage - Input Offset (Max) 5mV @ 30V
Voltage - Supply, Single/Dual (+/-) 2V ~ 30V, +/-1V ~ 15V

Getting Started

To use the LM339PWR, connect a pull-up resistor from the output pin to your desired logic voltage level, as the open-collector stage cannot drive high on its own. Ensure the common-mode input voltage remains within the specified limits, particularly when operating near the negative rail.

Part of LM339 family » LM339

LM339 Family

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

Part Number Package Voltage - Input Offset (Max) Stock
LM339PWR (this part) TSSOP-14 5mV 16,873
LM339APWR TSSOP-14 3mV 14,014
LM339ADBR SSOP-14 3mV 2,480

Also Consider

LM339DR TITexas Instruments - This is the same quad comparator circuit but in a larger 14-SOIC package for easier hand-soldering or lower-density PCB layouts.
LM2901PWR TITexas Instruments - Offers an extended operating temperature range suitable for automotive or harsher industrial environments.