LM339N/PB

Product Overview

Category: Integrated Circuit (IC)

Use: The LM339N/PB is a quad voltage comparator designed for use in a wide range of applications that require analog signal comparisons. It is commonly used in electronic circuits to compare voltages and determine the relationship between them.

Characteristics: - Quad voltage comparator - Low input offset voltage - Wide supply voltage range - High output sink current capability - Low output saturation voltage - Compatible with TTL, MOS, and CMOS logic systems

Package: The LM339N/PB is available in a 14-pin dual in-line package (DIP) or a small outline integrated circuit (SOIC) package.

Essence: The LM339N/PB is an essential component in many electronic devices and systems where voltage comparison is required. It provides accurate and reliable results in various applications.

Packaging/Quantity: The LM339N/PB is typically sold in reels or tubes containing multiple units. The exact 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 (minimum)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM339N/PB has a 14-pin configuration as follows:

```

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| | - |1 14| + + |2 13| - - |3 12| Output D + |4 11| Output C - |5 10| Output B + |6 9| Output A - |7 8| Vcc |___________| ```

Functional Features

• Quad voltage comparator: The LM339N/PB contains four independent voltage comparators, allowing multiple comparisons to be made simultaneously.
• Low input offset voltage: The device has a low input offset voltage, ensuring accurate comparison results.
• Wide supply voltage range: The LM339N/PB can operate within a wide range of supply voltages, making it suitable for various applications.
• High output sink current capability: It can handle high output currents, enabling it to drive different loads.
• Low output saturation voltage: The device exhibits low saturation voltage, minimizing power dissipation and improving efficiency.
• Compatibility with logic systems: The LM339N/PB is compatible with TTL, MOS, and CMOS logic systems, making it versatile in different circuit designs.

Advantages and Disadvantages

Advantages: - Accurate voltage comparison - Wide supply voltage range - High output sink current capability - Low power dissipation - Versatile compatibility with logic systems

Disadvantages: - Limited number of comparators (four in total) - Requires external components for specific applications

Working Principles

The LM339N/PB compares the voltages applied to its inputs and produces an output based on the relationship between these voltages. It operates by amplifying the voltage difference between the inputs and comparing it to a reference voltage. The output switches depending on whether the voltage at the non-inverting input is higher or lower than the reference voltage.

Detailed Application Field Plans

The LM339N/PB finds applications in various fields, including but not limited to: 1. Battery chargers and monitors 2. Voltage level detection 3. Signal conditioning circuits 4. Motor control systems 5. Overvoltage/undervoltage protection circuits 6. Window comparators 7. Oscillators and timers 8. Analog-to-digital converters

Detailed and Complete Alternative Models

1. LM339D: Similar to LM339N/PB, but available in a surface mount package (SOIC).
2. LM2901: Quad voltage comparator with similar specifications and pin configuration.
3. LM393: Dual voltage comparator with lower power consumption and similar characteristics.

These alternative models can be used as substitutes for the LM339N/PB depending on specific requirements and availability.

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