Texas Instruments

LM339M

LM339M Description

The LM339M is a general-purpose comparator IC designed by Texas Instruments, featuring four independent comparators in a single package. This IC is designed for a wide range of applications and offers robust performance characteristics. Despite its obsolescence status, the LM339M remains a reliable choice for various electronic circuits. It operates within a temperature range of 0°C to 70°C and is available in a surface-mount package, making it suitable for compact designs. The LM339M is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.

LM339M Features

• Output Current Capability: The LM339M can provide a typical output current of 16mA at 5V, making it suitable for driving various loads.
• Low Quiescent Current: With a maximum quiescent current of 2.5mA, the LM339M is energy-efficient, ideal for battery-operated or low-power applications.
• Wide Supply Voltage Range: The comparator operates from a single supply voltage of 2V to 36V or dual supplies of ±1V to ±18V, offering flexibility in power supply requirements.
• Low Input Offset Voltage: A maximum input offset voltage of 5mV at 30V ensures high accuracy and stability in voltage comparison tasks.
• Low Input Bias Current: The maximum input bias current is 0.25µA at 5V, minimizing the impact on the input signal source.
• Moisture Sensitivity Level: MSL 1 (Unlimited) indicates that the IC is not sensitive to moisture, enhancing its reliability in various environmental conditions.
• Packaging: Available in a tube package, the LM339M is easy to handle and store, facilitating assembly processes.

LM339M Applications

The LM339M is versatile and can be used in a variety of applications, including:

• Signal Processing: Ideal for comparing analog signals and converting them into digital outputs, useful in signal conditioning circuits.
• Power Management: Can be employed in voltage monitoring and control circuits to ensure stable power supply levels.
• Audio Applications: Suitable for audio signal processing, such as level detection and clipping indication.
• Industrial Control: Used in control systems for monitoring and regulating process parameters.
• Consumer Electronics: Commonly found in devices requiring voltage comparison, such as battery chargers and power supplies.

Conclusion of LM339M

The LM339M, despite being marked as obsolete, remains a valuable component in the electronics industry due to its robust performance and wide range of applications. Its low quiescent current, wide supply voltage range, and low input offset voltage make it an ideal choice for various electronic designs. The LM339M's compliance with environmental and safety standards ensures it meets modern manufacturing requirements. For applications requiring reliable and efficient voltage comparison, the LM339M is a dependable solution.