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LM339BIPWR

TILM339BIPWR

Texas Instruments
Comparator Differential Open-Collector 14-TSSOP
Active4,980 in stock
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Overview

The LM339BIPWR is a quad-channel differential comparator featuring an open-collector output stage designed for versatile signal monitoring and logic level shifting. This 'B' version represents an upgraded iteration of the industry-standard LM339, offering improved specifications such as lower input offset voltage and lower supply current while maintaining compatibility with legacy designs. It operates across a wide supply range from 2V up to 36V, making it suitable for both battery-powered and industrial high-voltage systems.

Why Choose This Part

The LM339BIPWR offers a significant performance boost over the original LM339 with a lower maximum input offset voltage of 3.5mV and a reduced quiescent current. Its open-collector output allows for wired-OR logic configurations and easy integration with TTL, MOS, and CMOS circuits. The common-mode input voltage range includes ground, enabling direct sensing of low-side signals even when operating from a single supply.

Applications

Limit Threshold Detection
Used in industrial monitoring to trigger an output when a sensor voltage exceeds or falls below a specific reference point.
Logic Level Shifting
Utilizes the open-collector output to interface between different logic families, such as 5V sensors and 3.3V microcontrollers.
Zero-Crossing Detectors
Detects the moment an AC signal crosses the ground reference for synchronization or timing applications.
Oscillators and Multivibrators
Configured with external passive components to create square wave generators or pulse-width modulation circuits.

Key Specifications

Type Differential
Output Type Open-Collector
Mounting Type Surface Mount
Package / Case 14-TSSOP (0.173", 4.40mm Width)
Number of Elements 4
Operating Temperature -40degC ~ 125degC
Current - Output (Typ) 21mA
Propagation Delay (Max) 1us (Typ)
Supplier Device Package 14-TSSOP
Current - Quiescent (Max) 1.2mA
Current - Input Bias (Max) 0.025uA @ 5V
Voltage - Input Offset (Max) 3.5mV @ 5V
Voltage - Supply, Single/Dual (+/-) 2V ~ 36V, +/-1V ~ 18V

Getting Started

To evaluate this part, use a standard TSSOP-14 breakout board or a breadboard adapter to connect the power pins (VCC and GND). Since it has an open-collector output, ensure a pull-up resistor is connected between the output pin and the desired logic voltage rail to observe a high-state signal. For prototyping, bypass the VCC pin with a 0.1uF ceramic capacitor placed close to the device to minimize switching noise.

Part of LM339 family » LM339

LM339 Family

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

Part Number Package Type Temp Range Current - Output (Typ) Current - Quiescent (Max) Current - Input Bias (Max) Stock
LM339BIPWR (this part) TSSOP-14 Differential -40degC ~ 125degC 21mA 1.2mA 0.025uA 4,980
LM339PWR TSSOP-14 Standard (General .. 0degC ~ 70degC 20mA 2.5mA 0.25uA 16,873
LM339APWR TSSOP-14 Standard (General .. 0degC ~ 70degC 20mA 2.5mA 0.25uA 14,014
LM339ADBR SSOP-14 Standard (General .. 0degC ~ 70degC 20mA 2.5mA 0.25uA 2,480

Also Consider

LM2901BIPWR TITexas Instruments - Offers similar quad-comparator performance but is qualified for automotive applications with a slightly different voltage rating.
LM339ADR TITexas Instruments - A standard version in a SOIC-14 package for designs where TSSOP is too small for manual assembly or specific PCB requirements.