Texas Instruments

TL431CDBZR

The TL431CDBZR is a precision programmable shunt regulator manufactured by Texas Instruments. It is a three-terminal device that provides a stable reference voltage and current limiting in a variety of applications.

Description:

The TL431CDBZR is a high-precision, adjustable shunt regulator that is designed to provide a stable output voltage over a wide range of input voltages and operating conditions. It features a thermally protected output transistor and an internal 2.5V reference source. The device is available in a small SOT-23 package, making it suitable for use in compact and portable applications.

Features:

1. High-precision output voltage: The TL431CDBZR provides a stable output voltage with a typical tolerance of ±1%.
2. Adjustable output voltage: The output voltage can be adjusted using an external resistor network, allowing for a wide range of output voltages.
3. Programmable current limit: The device features an internal current limit that can be adjusted using an external resistor, providing protection against overload conditions.
4. Thermal protection: The TL431CDBZR includes thermal shutdown protection to prevent damage in the event of an overheating condition.
5. Small package: The device is available in a compact SOT-23 package, making it suitable for use in space-constrained applications.

Applications:

The TL431CDBZR is a versatile device that can be used in a wide range of applications, including:

1. Voltage regulation: The TL431CDBZR can be used to provide a stable and adjustable output voltage for various electronic circuits.
2. Current limiting: The programmable current limit feature makes the device suitable for applications that require protection against overload conditions.
3. LED driver circuits: The TL431CDBZR can be used to drive high-brightness LEDs with precise current control.
4. Battery management systems: The device can be used in battery management systems to provide accurate voltage regulation and protection against overcharging.
5. Power supply circuits: The TL431CDBZR can be used in power supply circuits to provide stable and adjustable output voltages for various loads.

In summary, the TL431CDBZR is a high-precision, adjustable shunt regulator that offers a stable output voltage and current limiting in a compact package. Its features and applications make it a versatile device suitable for a wide range of electronic circuits and systems.