LM339NSRG4

Product Overview

Category: Integrated Circuits (ICs)

Use: LM339NSRG4 is a quad voltage comparator designed for use in industrial, automotive, and consumer applications. It is commonly used to compare voltages and determine the relative magnitudes between them.

Characteristics: - Low input offset voltage - Wide supply voltage range - Low output saturation voltage - High input impedance - Open-collector outputs - Temperature range: -40°C to +125°C

Package: SOIC (Small Outline Integrated Circuit)

Essence: The LM339NSRG4 is an essential component in electronic circuits that require voltage comparison and decision-making capabilities. It enables precise control and monitoring of various electrical systems.

Packaging/Quantity: The LM339NSRG4 is typically sold in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 2V to 36V
• Input Offset Voltage: 2mV (maximum)
• Input Bias Current: 25nA (maximum)
• Response Time: 1.3μs (typical)
• Output Sink Current: 16mA (maximum)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM339NSRG4 has a 14-pin configuration as follows:

```

---

| | -|1 14|- VCC -|2 13|- Output 4 -|3 12|- Input 4 -|4 11|- GND -|5 10|- Input 3 -|6 9|- Output 3 -|7 8|- Input 2 |_________| ```

Functional Features

• Quad voltage comparator with open-collector outputs
• Wide supply voltage range allows for versatile applications
• Low input offset voltage ensures accurate voltage comparison
• High input impedance minimizes loading effects on the measured circuit
• Open-collector outputs enable easy interfacing with other digital circuits

Advantages and Disadvantages

Advantages: - Versatile and widely used in various applications - Precise voltage comparison capabilities - Low power consumption - Compact size and easy integration into electronic systems

Disadvantages: - Limited output current capacity - Requires external pull-up resistors for proper operation

Working Principles

The LM339NSRG4 operates by comparing the voltages applied to its inputs and producing corresponding logic-level outputs. It compares the voltage at the non-inverting input (pin 3) with the voltage at the inverting input (pin 2) and generates a high or low output based on the comparison result. The open-collector outputs allow for flexible connection to other digital circuits.

Detailed Application Field Plans

The LM339NSRG4 finds extensive use in various fields, including:

1. Industrial Control Systems: Used for monitoring and controlling processes, such as temperature control, motor speed regulation, and level sensing.
2. Automotive Electronics: Employed in automotive systems for functions like battery voltage monitoring, fault detection, and signal conditioning.
3. Consumer Electronics: Integrated into devices like power supplies, audio amplifiers, and battery chargers for voltage regulation and protection.

Detailed and Complete Alternative Models

1. LM393: Dual voltage comparator with similar characteristics and pin configuration.
2. LM311: Single voltage comparator with higher speed and wider operating temperature range.
3. LM324: Quad operational amplifier with built-in voltage comparators.

These alternative models offer similar functionality and can be considered as substitutes for the LM339NSRG4 depending on specific requirements.

In conclusion, the LM339NSRG4 is a versatile quad voltage comparator widely used in industrial, automotive, and consumer applications. Its precise voltage comparison capabilities, low power consumption, and compact size make it an essential component in various electronic systems.