LM339AN/PB

Product Overview

Category: Integrated Circuits (ICs)

Use: LM339AN/PB is a quad voltage comparator that is commonly used in various electronic circuits. It compares two input voltages and provides an output based on the comparison result.

Characteristics: - Low power consumption - Wide supply voltage range - High input impedance - Open collector outputs - Fast response time

Package: LM339AN/PB is available in a 14-pin DIP (Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of LM339AN/PB lies in its ability to compare voltages and provide a digital output based on the comparison result.

Packaging/Quantity: LM339AN/PB is typically sold in reels or tubes, with each reel/tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

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 +85°C

Pin Configuration

LM339AN/PB has a 14-pin configuration as follows:

```

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| | --|1 7 8 |-- --|2 6 9 |-- --|3 5 10 |-- --|4 11 |-- |___________| ```

Pin Description: 1. Output 1 2. Inverting Input 1 3. Non-Inverting Input 1 4. Vcc (Positive Supply Voltage) 5. Non-Inverting Input 2 6. Inverting Input 2 7. Output 2 8. GND (Ground) 9. Output 3 10. Inverting Input 3 11. Non-Inverting Input 3 12. Output 4 13. Inverting Input 4 14. Non-Inverting Input 4

Functional Features

• Quad voltage comparator: LM339AN/PB contains four independent voltage comparators in a single package.
• Wide supply voltage range: It can operate from 2V to 36V, making it suitable for various applications.
• Open collector outputs: The outputs are open collector, allowing easy interfacing with other digital circuits.
• Fast response time: LM339AN/PB has a typical response time of 1.3μs, enabling quick comparison and output generation.

Advantages and Disadvantages

Advantages: - Low power consumption: LM339AN/PB consumes minimal power, making it energy-efficient. - Versatile: It can be used in a wide range of applications due to its flexible voltage range and multiple comparators. - High input impedance: The high input impedance ensures accurate voltage comparison. - Cost-effective: LM339AN/PB is an affordable solution for voltage comparison needs.

Disadvantages: - Limited output current: The maximum output sink current is 16mA, which may not be sufficient for certain applications requiring higher current levels. - Single-ended inputs: LM339AN/PB only supports single-ended inputs, limiting its use in differential voltage comparison scenarios.

Working Principles

LM339AN/PB works based on the principle of voltage comparison. It compares the voltages applied to its non-inverting and inverting inputs and generates a digital output based on the comparison result. When the voltage at the non-inverting input is higher than the voltage at the inverting input, the output goes high. Conversely, when the voltage at the inverting input is higher, the output goes low.

Detailed Application Field Plans

LM339AN/PB finds applications in various fields, including but not limited to: - Battery chargers - Power supplies - Motor control circuits - Signal conditioning circuits - Level detection circuits - Overvoltage/undervoltage protection systems

Alternative Models

There are several alternative models available that serve similar functions to LM339AN/PB. Some popular alternatives include: - LM311 - LM393 - LM324 - LM358

These alternatives may have slightly different specifications and pin configurations, so it is important to refer to their respective datasheets for detailed information.

In conclusion, LM339AN/PB is a versatile quad voltage comparator with low power consumption, wide supply voltage range, and fast response time. It finds applications in various electronic circuits and can be used as a cost-effective solution for voltage comparison needs.