Texas Instruments

TL431BQD

The TL431BQD is a precision programmable shunt regulator manufactured by Texas Instruments. It is a popular choice for a variety of applications due to its high precision and flexibility.

Description:

The TL431BQD is a three-terminal adjustable shunt regulator that can be used to create a stable reference voltage. It has a built-in 2.5V reference and a precision bandgap reference, which allows it to provide a highly accurate and stable output voltage. The device also features a shunt mode of operation, which allows it to regulate the voltage across a load with high precision.

Features:

• Programmable reference voltage from 2.5V to 36V
• High accuracy and stability
• Shunt mode of operation
• Low dropout voltage
• Short circuit protection
• Thermal shutdown
• Available in a small SOT-23 package

Applications:

The TL431BQD is used in a wide range of applications that require a stable and precise reference voltage. Some of the common applications include:

1. Voltage regulation in power supplies
2. LED current limiting and stabilization
3. Battery monitoring and charging circuits
4. Precision measurement and data acquisition systems
5. Automotive and industrial control systems
6. Medical equipment

In summary, the TL431BQD is a versatile and precise programmable shunt regulator that is widely used in a variety of applications that require a stable and accurate reference voltage. Its small size and high accuracy make it an ideal choice for many different types of electronic circuits.