Texas Instruments

TL431IDBVR

The TL431IDBVR is a precision programmable shunt regulator produced by Texas Instruments. It is a popular choice for a variety of applications due to its high precision, low output noise, and excellent thermal stability.

Description:

The TL431IDBVR is a compact, 5-pin package that includes an internal 2.5V reference, a precision bandgap reference, and an adjustable shunt regulator. It is designed to provide a stable and adjustable output voltage that can be set by an external resistor network.

Features:

1. High precision: The TL431IDBVR offers excellent precision with a typical reference voltage drift of only ±1% over temperature.
2. Low output noise: The device has a low output noise of typically 100µV, making it suitable for use in sensitive applications.
3. Adjustable output voltage: The output voltage can be adjusted over a wide range using an external resistor network, allowing for flexibility in system design.
4. Thermal stability: The TL431IDBVR has excellent thermal stability, with a typical temperature coefficient of only 50ppm/°C.
5. Compact package: The device is available in a small, 5-pin package, making it suitable for use in space-constrained applications.

Applications:

The TL431IDBVR is used in a variety of applications, including:

1. Voltage regulation: It can be used as a precision shunt regulator in power supply circuits to provide a stable and adjustable output voltage.
2. Current limiting: The device can be used to implement current limiting in power supply circuits by monitoring the voltage across a sense resistor and adjusting the output voltage accordingly.
3. LED dimming: The TL431IDBVR can be used in LED driver circuits to provide precise dimming control.
4. Battery management: It can be used in battery management systems to monitor and regulate the voltage of individual battery cells.
5. Motor control: The device can be used in motor control circuits to provide precise speed control and current limiting.

Overall, the TL431IDBVR is a versatile and reliable component that offers high precision and excellent thermal stability, making it suitable for a wide range of applications.