STMicroelectronics

LM239D

LM239D Description

The LM239D is a high-performance, general-purpose comparator from STMicroelectronics, designed for a wide range of applications. This 4-element comparator offers excellent performance with a typical output current of 16mA at 5V and a maximum quiescent current of just 2mA. With a supply voltage range of 2V to 32V (single) and ±1V to 16V (dual), the LM239D is well-suited for various low-voltage applications. Its low input offset voltage of 5mV at 30V and input bias current of 0.25µA at 5V ensure accurate and reliable operation.

LM239D Features

• High Output Current: The LM239D can deliver a typical output current of 16mA at 5V, making it suitable for driving heavy loads.
• Low Power Consumption: With a maximum quiescent current of 2mA, the LM239D is energy-efficient, ideal for battery-powered applications.
• Wide Supply Voltage Range: The comparator operates over a wide supply voltage range of 2V to 32V (single) and ±1V to 16V (dual), providing flexibility in design.
• Low Input Offset Voltage: The LM239D has a low input offset voltage of 5mV at 30V, ensuring high accuracy and precision.
• Low Input Bias Current: The comparator features a low input bias current of 0.25µA at 5V, minimizing loading effects on the input signal source.
• RoHS Compliance: The LM239D is RoHS3 compliant, making it suitable for environmentally conscious designs.
• REACH Unaffected: The comparator is REACH unaffected, ensuring compliance with European chemical regulations.
• Surface Mount Packaging: The LM239D is available in a surface mount package,PCB。

LM239D Applications

The LM239D's versatility makes it ideal for a variety of applications, including:

1. Industrial Control Systems: The comparator's high output current and low power consumption make it suitable for use in industrial control systems, where it can be used to compare sensor inputs and control actuators.
2. Battery-Powered Devices: The LM239D's low power consumption and wide supply voltage range make it well-suited for battery-powered devices, such as portable electronics and wearables.
3. Automotive Applications: The comparator's ability to operate over a wide supply voltage range and its low input offset voltage make it suitable for use in automotive applications, such as engine control units and sensor interfaces.
4. Medical Devices: The LM239D's low input bias current and low power consumption make it suitable for use in medical devices, where it can be used to compare sensor inputs and control actuators.

Conclusion of LM239D

The LM239D is a versatile, high-performance comparator from STMicroelectronics that offers a combination of high output current, low power consumption, and a wide supply voltage range. Its low input offset voltage and input bias current ensure accurate and reliable operation, making it suitable for a wide range of applications, including industrial control systems, battery-powered devices, automotive applications, and medical devices. With its RoHS compliance and REACH unaffected status, the LM239D is also an environmentally friendly choice for designers looking to create sustainable electronic products.