onsemi

LM393M

LM393M Description

The LM393M is a general-purpose comparator IC designed by onsemi, featuring two independent differential comparators housed in an 8-pin SOIC package. This device is suitable for a wide range of applications due to its robust performance and versatile operating conditions. The LM393M operates within a temperature range of 0°C to 70°C and is rated for a supply voltage of 2V to 36V for single supply and ±1V to ±18V for dual supply configurations. It offers a maximum input offset voltage of 5mV at 5V, ensuring high precision in signal comparison. The device also boasts low input bias current, with a maximum of 0.25µA at 5V, and a quiescent current of up to 2.5mA, making it energy-efficient. The LM393M can deliver an output current of up to 18mA at 5V, making it suitable for driving various loads. Despite being marked as obsolete, the LM393M remains a reliable choice for many applications due to its proven performance and compatibility with existing designs.

LM393M Features

• Dual Differential Comparators: The LM393M contains two independent differential comparators, allowing for simultaneous signal comparisons and increasing the flexibility of circuit design.
• Wide Operating Voltage Range: With a supply voltage range of 2V to 36V (single) and ±1V to ±18V (dual), the LM393M can be used in a variety of power supply environments, enhancing its versatility.
• Low Input Offset Voltage: A maximum input offset voltage of 5mV at 5V ensures high accuracy in signal comparison, making it suitable for precision applications.
• Low Input Bias Current: The maximum input bias current of 0.25µA at 5V minimizes the impact on the input signal, maintaining signal integrity.
• Low Quiescent Current: With a maximum quiescent current of 2.5mA, the LM393M is energy-efficient, making it suitable for battery-powered and low-power applications.
• High Output Current: The ability to deliver up to 18mA at 5V allows the LM393M to drive various loads, including LEDs, relays, and other electronic components.
• Surface Mount Packaging: The 8-pin SOIC package is ideal for surface mount applications, providing a compact and reliable solution for modern PCB designs.
• Compliance and Compatibility: The LM393M is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations and facilitating global distribution.

LM393M Applications

The LM393M is well-suited for a variety of applications due to its robust performance and versatile operating conditions. Some specific use cases include:

• Signal Processing: The dual differential comparators make the LM393M ideal for applications requiring precise signal comparison, such as in analog-to-digital converters and signal conditioning circuits.
• Power Management: The wide operating voltage range and low quiescent current make it suitable for power management systems, including battery monitoring and voltage regulation.
• Control Systems: The ability to drive various loads with its high output current makes the LM393M a reliable choice for control systems, such as motor control and relay activation.
• Consumer Electronics: The compact surface mount package and low power consumption make it suitable for consumer electronics, where space and energy efficiency are critical.
• Industrial Automation: The LM393M's robust performance and wide operating range make it suitable for industrial applications, including process control and automation systems.

Conclusion of LM393M

The LM393M is a versatile and reliable general-purpose comparator IC designed by onsemi. Its dual differential comparators, wide operating voltage range, low input offset voltage, and low quiescent current make it suitable for a variety of applications, from signal processing to power management. Despite being marked as obsolete, the LM393M remains a valuable component for many applications due to its proven performance and compatibility with existing designs. Its surface mount packaging and compliance with international regulations further enhance its appeal for modern electronics.