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LM339PT

LM339PT Description

The LM339PT is a versatile, general-purpose comparator from ROHM Semiconductor, designed for a wide range of applications in the electronics industry. This 4-element comparator is obsolete, but still offers excellent performance in terms of speed and accuracy. It is RoHS3 compliant, REACH unaffected, and operates within a temperature range of 0°C to 70°C. The LM339PT is surface mount, making it suitable for modern electronic designs. It has a supply voltage range of 2V to 36V for single supplies and ±1V to 18V for dual supplies, making it highly adaptable to various power requirements.

LM339PT Features

• Output Current: The LM339PT can provide a typical output current of 16mA at 5V, which is beneficial for driving various loads.
• Quiescent Current: It has a maximum quiescent current of 1mA, ensuring low power consumption in standby mode.
• Input Bias Current: The maximum input bias current is 0.25µA at 5V, which is crucial for maintaining low power consumption in high-impedance input applications.
• Input Offset Voltage: The maximum input offset voltage is 7mV at 5V, contributing to the comparator's accuracy.
• Moisture Sensitivity Level (MSL): With an MSL of 1 (Unlimited), the LM339PT is suitable for applications where moisture exposure is not a concern.
• Package: The comparator is available in a 14-pin TSSOP package, which is compact and space-saving.

LM339PT Applications

The LM339PT is ideal for various applications due to its general-purpose nature and robust performance:

1. Signal Comparison: It can be used in applications where precise signal comparison is required, such as in process control systems.
2. Threshold Detection: The comparator can detect when a signal crosses a certain threshold, making it suitable for alarm systems or sensor interfaces.
3. Data Conversion: In data acquisition systems, the LM339PT can be used to convert analog signals to digital signals for processing.
4. Motor Control: In motor control applications, the comparator can be used to monitor and control motor speed and direction.

Conclusion of LM339PT

While the LM339PT is now considered obsolete, it remains a reliable and high-performing comparator for various applications in the electronics industry. Its combination of low power consumption, high output current, and accuracy make it a valuable component in designs where space and power are at a premium. Despite its age, the LM339PT continues to offer unique advantages over similar models, making it an ideal choice for applications that require a robust, general-purpose comparator.