Texas Instruments

TL431BQLPRE3

TL431BQLPRE3 Description

The TL431BQLPRE3 is a precision adjustable shunt reference voltage regulator designed by Texas Instruments. This device is part of the Power Management Integrated Circuits (PMIC) category and offers a highly stable reference voltage with a tolerance of ±0.5%. The TL431BQLPRE3 features an adjustable output voltage ranging from 2.495V to 36V, making it suitable for a wide range of applications. It is housed in a TO-92-3 package and is available in a Tape & Reel (TR) format for convenient handling and assembly.

TL431BQLPRE3 Features

• Adjustable Output Voltage: The TL431BQLPRE3 provides an adjustable output voltage range from 2.495V to 36V, offering flexibility in various power supply designs.
• High Stability and Precision: With a tolerance of ±0.5%, this device ensures high stability and precision in voltage regulation, critical for sensitive electronic applications.
• High Output Current Capability: The device can handle an output current of up to 100 mA, making it suitable for applications requiring higher current loads.
• Low Cathode Current: The TL431BQLPRE3 has a low cathode current of 700 µA, which helps in reducing power consumption and improving efficiency.
• Through Hole Mounting: The through-hole mounting type ensures robust mechanical stability and is ideal for applications requiring high reliability.
• Compliance and Standards: The TL431BQLPRE3 is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.
• Obsolescence Notice: Although marked as obsolete, the TL431BQLPRE3 remains a reliable choice for existing designs and legacy systems.

TL431BQLPRE3 Applications

The TL431BQLPRE3 is ideal for a variety of applications due to its adjustable voltage range, high stability, and precision. Some specific use cases include:

• Power Supplies: The adjustable voltage range and high output current capability make it suitable for designing linear and switching power supplies.
• Battery Chargers: The precision and stability of the reference voltage are crucial for accurate battery charging circuits.
• Voltage Regulators: The device can be used in voltage regulator circuits to maintain a stable output voltage under varying load conditions.
• Instrumentation: The high precision and stability make it suitable for precision measurement and instrumentation applications.
• Consumer Electronics: Ideal for applications in consumer electronics where precise voltage regulation is required.

Conclusion of TL431BQLPRE3

The TL431BQLPRE3 from Texas Instruments is a versatile and reliable shunt reference voltage regulator. Its adjustable output voltage, high stability, and precision make it suitable for a wide range of applications in power management and electronics. Despite being marked as obsolete, the TL431BQLPRE3 remains a valuable component for existing designs and legacy systems, ensuring continued reliability and performance. Its compliance with environmental and safety standards further enhances its appeal for modern electronic designs.