STMicroelectronics

TL431ID

TL431ID Description

The TL431ID is a precision shunt voltage reference integrated circuit (IC) designed for a wide range of power management applications. Manufactured by STMicroelectronics, this device offers an adjustable output voltage with a minimum of 2.495V and a maximum of 36V, making it highly versatile for various electronic systems. The TL431ID is capable of delivering up to 100 mA of output current, ensuring robust performance in demanding applications. Despite being marked as obsolete, the TL431ID remains a reliable choice due to its stringent tolerance of ±2.21%, which ensures precise voltage regulation. The device is REACH unaffected and RoHS3 compliant, adhering to environmental standards and ensuring safe usage in modern electronics. With a moisture sensitivity level (MSL) of 1 (unlimited), the TL431ID is suitable for surface mount applications and is packaged in a tube format for convenient handling and storage.

TL431ID Features

• Adjustable Output Voltage: The TL431ID provides an adjustable output voltage ranging from 2.495V to 36V, offering flexibility in voltage regulation.
• High Output Current Capability: It can deliver up to 100 mA of output current, making it suitable for applications requiring significant power.
• Precision Voltage Regulation: With a tolerance of ±2.21%, the TL431ID ensures precise voltage regulation, critical for maintaining system stability.
• Shunt Reference Type: As a shunt reference, the TL431ID operates by providing a reference voltage across a resistor, allowing for efficient voltage stabilization.
• Surface Mount Compatibility: The TL431ID is designed for surface mount technology (SMT), enabling compact and reliable integration into modern electronic circuits.
• Environmental Compliance: The device is REACH unaffected and RoHS3 compliant, ensuring it meets environmental standards and is safe for use in various applications.
• Moisture Sensitivity Level: With an MSL of 1 (unlimited), the TL431ID is highly resistant to moisture, making it suitable for a wide range of environmental conditions.

TL431ID Applications

The TL431ID is ideal for a variety of applications where precise voltage regulation is essential. Some specific use cases include:

• Power Supply Design: The TL431ID can be used in power supply circuits to provide a stable reference voltage, ensuring consistent power delivery to sensitive electronic components.
• Battery Management Systems: In battery-powered devices, the TL431ID can help regulate the charging voltage, prolonging battery life and improving overall system efficiency.
• DC-DC Converters: The adjustable output voltage and high current capability make the TL431ID suitable for use in DC-DC converters, where precise voltage control is crucial for efficient power conversion.
• Industrial Control Systems: The TL431ID's robust performance and environmental compliance make it ideal for industrial applications where reliability and precision are paramount.
• Consumer Electronics: The TL431ID can be used in consumer electronics to provide stable voltage references, ensuring consistent performance across a range of devices.

Conclusion of TL431ID

The TL431ID, despite being marked as obsolete, remains a valuable component in the electronics industry due to its precision, versatility, and environmental compliance. Its adjustable output voltage, high current capability, and precise tolerance make it an excellent choice for a wide range of power management applications. Whether used in power supply design, battery management systems, or industrial control systems, the TL431ID offers reliable performance and efficient voltage regulation. For engineers and designers seeking a robust and precise voltage reference, the TL431ID is a reliable and versatile solution.