onsemi

LM339M

LM339M Description

The LM339M is a general-purpose comparator IC designed by onsemi, featuring four independent comparators in a single package. This IC is suitable for a wide range of applications due to its flexibility and robust performance characteristics. The LM339M operates within a temperature range of 0°C to 70°C, making it suitable for standard industrial and commercial environments. It supports a wide supply voltage range of 2V to 36V for single supply and ±1V to ±18V for dual supply, providing versatility in power requirements.

LM339M Features

• Operating Temperature: 0°C to 70°C, ensuring reliable performance in typical operating conditions.
• ECCN: EAR99, indicating compliance with export regulations.
• Current - Output (Typ): 18mA @ 5V, providing sufficient drive capability for various loads.
• Mounting Type: Surface Mount, facilitating compact and efficient PCB designs.
• Product Status: Obsolete, but still available for legacy systems and specific applications.
• Voltage - Input Offset (Max): 5mV @ 5V, ensuring high accuracy in comparison operations.
• Type: General Purpose, making it suitable for a wide range of applications.
• REACH Status: REACH Unaffected, ensuring compliance with environmental regulations.
• Voltage - Supply, Single/Dual (±): 2V to 36V, ±1V to ±18V, providing flexibility in power supply options.
• Number of Elements: 4, offering multiple comparison channels in a single package.
• HTSUS: 8542.39.000,1 facilitating customs and import processes.
• Package: Tube, ensuring safe and secure handling during manufacturing.
• Current - Input Bias (Max): 0.25µA @ 5V, minimizing power consumption and maintaining high efficiency.
• Current - Quiescent (Max): 2.5mA, ensuring low power consumption in standby mode.
• Base Product Number: LM339, a well-known and widely used comparator series.
• Moisture Sensitivity Level (MSL): 1 (Unlimited), indicating high resistance to moisture, suitable for various manufacturing processes.

LM339M Applications

The LM339M is ideal for applications requiring multiple comparison channels with high accuracy and low power consumption. Specific use cases include:

• Signal Processing: Used in analog-to-digital converters to compare input signals against reference levels.
• Level Shifting: Ideal for converting logic levels between different voltage standards.
• Window Comparator: Utilized in systems requiring multiple threshold levels for signal monitoring.
• Zero-Crossing Detection: Useful in power electronics for detecting zero-crossing points in AC waveforms.
• Oscillator Circuits: Employed in generating precise timing signals for various electronic systems.
• Overvoltage and Undervoltage Detection: Essential in power supply circuits to ensure safe operating conditions.

Conclusion of LM339M

The LM339M is a versatile and reliable general-purpose comparator IC, offering multiple comparison channels in a single package. Its wide operating voltage range, low input bias current, and low quiescent current make it suitable for a variety of applications, from signal processing to power supply monitoring. Despite being marked as obsolete, the LM339M remains a valuable component for legacy systems and specific applications where its unique features and performance benefits are required.