Texas Instruments

TL431ACPK

The TL431ACPK is a precision programmable shunt regulator manufactured by Texas Instruments. This device is designed to provide a stable and adjustable reference voltage for a variety of applications, including voltage regulation, current limiting, and precision voltage references.

Description:

The TL431ACPK is a compact, 5-pin SOT-23 package that features a thermally protected, precision shunt reference source. It provides a stable output voltage that can be adjusted by an external resistor network. The device also includes an internal 1.25V reference, a 1.25V reference buffer, and a darlington output stage.

Features:

• Programmable output voltage: The output voltage of the TL431ACPK can be adjusted by an external resistor network, allowing for a wide range of output voltages.
• High precision: The device offers high precision and low temperature drift, making it ideal for precision voltage regulation applications.
• Thermal protection: The TL431ACPK includes thermal protection to prevent damage in the event of an overload or short circuit.
• Small footprint: The device is available in a compact SOT-23 package, making it suitable for space-constrained applications.

Applications:

The TL431ACPK is used in a variety of applications, including:

1. Voltage regulation: The TL431ACPK can be used to provide a stable and adjustable reference voltage for voltage regulation applications.
2. Current limiting: The device can be used to limit the current in a circuit by acting as a constant current source.
3. Precision voltage references: The TL431ACPK can be used as a precision voltage reference in a variety of applications, including data acquisition systems, power supplies, and battery management systems.
4. LED current control: The device can be used to control the current in LED circuits, providing consistent brightness and extending the life of the LEDs.
5. Battery management: The TL431ACPK can be used in battery management systems to monitor and regulate the voltage and current of the battery.

Overall, the TL431ACPK is a versatile and reliable device that offers high precision and thermal protection, making it ideal for a wide range of applications.