onsemi

LM239DTBR2

LM239DTBR2 Description

The LM239DTBR2 is a general-purpose comparator IC from onsemi, featuring four independent comparators in a 14-TSSOP surface-mount package. This device is designed for a wide range of applications where precise voltage comparison is required. being Despite marked as obsolete, the LM239DTBR2 remains a reliable choice for many existing designs due to its robust performance and compatibility.

Key technical specifications include a maximum quiescent current of 2.5mA and a typical output current of 16mA at 5V. The input offset voltage is maximized at 5mV at 5V, ensuring high accuracy in voltage comparison tasks. The device operates over a wide supply voltage range of 3V to 36V for single supply and ±1.5V to ±18V for dual supply configurations. The input bias current is extremely low, at a maximum of 0.25µA at 5V, which minimizes the impact on the input signal source.

The LM239DTBR2 is packaged in a Tape & Reel (TR) format, making it suitable for automated surface-mount assembly processes. It is REACH unaffected and classified under ECCN EAR99 and HTSUS 8542.33.0001, ensuring compliance with international regulations.

LM239DTBR2 Features

• High Output Current: With a typical output current of 16mA at 5V, the LM239DTBR2 can drive a variety of loads directly, reducing the need for additional buffer stages.
• Low Quiescent Current: The maximum quiescent current of 2.5mA ensures minimal power consumption, making it suitable for battery-powered and low-power applications.
• Wide Operating Voltage Range: The device operates from 3V to 36V for single supply and ±1.5V to ±18V for dual supply, providing flexibility in power supply options.
• Low Input Offset Voltage: A maximum input voltage offset of 5mV at 5V ensures high accuracy in voltage comparison, making it ideal for precision applications.
• Low Input Bias Current: With a maximum input bias current of 0.25µA at 5V, the LM239DTBR2 minimizes loading effects on the input signal source.
• Surface-Mount Package: The 14-TSSOP package is suitable for compact designs and automated assembly processes.
• Moisture Sensitivity Level 1: The MSL 1 (Unlimited) rating ensures the device is suitable for various environmental conditions without requiring special handling.

LM239DTBR2 Applications

The LM239DTBR2 is well-suited for a variety of applications where precise voltage comparison is essential. Some specific use cases include:

• Analog-to-Digital Conversion: Used in ADC circuits to compare analog input signals against reference voltages.
• Power Supply Monitoring: Ideal for monitoring power supply voltages to ensure they remain within specified limits.
• Signal Processing: Used in signal processing circuits to detect and compare signal levels.
• Battery Management Systems: Useful in monitoring battery voltage levels to ensure proper charging and discharging.
• ** ControlIndustrial Systems**: Employed in industrial control systems for precise voltage and current monitoring.

Conclusion of LM239DTBR2

The LM239DTBR2 is a versatile and reliable general-purpose comparator IC from onsemi, offering high accuracy and low power consumption. Despite its obsolescence status, its wide operating voltage range, low input offset voltage, and low input bias current make it an excellent choice for precision voltage comparison tasks. The surface-mount package and moisture sensitivity level 1 rating further enhance its suitability for a wide range of applications. For existing designs that rely on the LM239DTBR2, it continues to be a dependable solution, ensuring continued performance and compatibility.