Overview of Texas Instruments TLV431ACDBZR

The Texas Instruments TLV431ACDBZR is a precision low-voltage shunt voltage reference that offers the flexibility of a programmable voltage reference with the stability and accuracy of a bandgap reference. This device is part of a family of low-voltage, precision shunt voltage references that are designed to operate at a nominal voltage of 1.24 volts with a tight tolerance. It is commonly used in a variety of applications, including power supplies, battery-operated equipment, and precision voltage regulation scenarios.

Key Features

• Adjustable Output Voltage: The TLV431ACDBZR offers an output voltage range from V<sub>REF to 6 volts, which can be set with two external resistors.
• Low Dynamic Impedance: The device provides a stable reference with a low dynamic impedance of 0.22 ohms (typical), ensuring reliable operation even with load variations.
• High Accuracy: This voltage reference features a typical temperature coefficient of only 6 ppm/°C and an initial accuracy of 0.5% for the A grade.
• Low Operational Current: It operates with a low current in the range of 80 µA to 15 mA, making it suitable for portable and battery-powered applications.
• Extended Temperature Range: The TLV431ACDBZR is specified for operation from -40°C to 85°C, allowing it to be used in a wide range of environmental conditions.

Package and Quality

The device is offered in a small SOT-23 (DBZ) package, making it ideal for space-constrained applications. Its compact form factor allows for easy integration into various circuit designs without compromising on performance.

Applications

• Adjustable voltage and current regulators
• Switching power supplies
• Battery chargers
• Power management for consumer products
• Precision data systems
• Instrumentation and test equipment

In summary, the TLV431ACDBZR from Texas Instruments is a versatile and reliable shunt voltage reference that offers designers the precision, stability, and flexibility needed for demanding applications. Its low operational current and adjustable output make it an excellent choice for both portable devices and high-performance power systems.