LM339DBRE4

Product Overview

Category: Integrated Circuits (ICs)

Use: LM339DBRE4 is a quad voltage comparator designed for use in industrial, automotive, and consumer applications. It is commonly used to compare voltages and provide digital outputs based on the comparison results.

Characteristics: - Quad voltage comparator - Low input offset voltage - Wide supply voltage range - Low quiescent current - Open collector outputs - High output sink current capability

Package: LM339DBRE4 is available in a small outline package (SOIC) with 14 pins.

Essence: The essence of LM339DBRE4 lies in its ability to accurately compare voltages and generate digital outputs based on the comparison results.

Packaging/Quantity: LM339DBRE4 is typically sold in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 2 V to 36 V
• Input Offset Voltage: 2 mV (maximum)
• Quiescent Current: 0.8 mA (typical)
• Output Sink Current: 16 mA (minimum)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM339DBRE4 has a total of 14 pins arranged as follows:

```

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| | --|IN1 | --|IN2 | --|IN3 | --|IN4 | --|GND | --|OUT1 | --|OUT2 | --|OUT3 | --|OUT4 | --|VCC+ | --|VCC- | |___________| ```

Functional Features

• Quad voltage comparator: LM339DBRE4 can compare up to four different input voltages simultaneously.
• Low input offset voltage: Ensures accurate comparison results.
• Wide supply voltage range: Can operate with a wide range of power supply voltages.
• Low quiescent current: Consumes minimal power during operation.
• Open collector outputs: Allows easy interfacing with other digital circuits.
• High output sink current capability: Can drive external loads effectively.

Advantages and Disadvantages

Advantages: - Accurate voltage comparison - Wide operating voltage range - Low power consumption - Easy integration with other circuits - High output sink current capability

Disadvantages: - Limited number of comparators (4 in total) - Requires external resistors for precise voltage level setting

Working Principles

LM339DBRE4 works by comparing the voltages applied to its input pins. It internally generates a reference voltage against which the input voltages are compared. Based on the comparison results, the corresponding output pins are driven either high or low, providing a digital representation of the voltage comparison.

Detailed Application Field Plans

LM339DBRE4 finds applications in various fields, including: 1. Battery voltage monitoring 2. Motor control systems 3. Overvoltage/undervoltage protection circuits 4. Level detection in liquid/gas sensors 5. Signal conditioning circuits

Detailed and Complete Alternative Models

Some alternative models to LM339DBRE4 include: 1. LM393: Dual voltage comparator 2. LM311: Single voltage comparator with differential inputs 3. LM324: Quad operational amplifier with similar functionality

These alternatives offer different features and specifications, allowing users to choose the most suitable option for their specific application requirements.

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