Texas Instruments

TL431BQDBVR

The TL431BQDBVR is a precision programmable shunt regulator manufactured by Texas Instruments. It is a popular choice for a wide range of applications due to its high precision and versatility.

Description:

The TL431BQDBVR is a programmable shunt regulator that features a built-in 2.5V reference source. It is available in a small-outline, surface-mount package (QDBVR), which makes it suitable for use in compact and densely populated circuits.

Features:

1. High precision: The TL431BQDBVR offers excellent precision, with a typical reference voltage drift of only ±1% per °C.
2. Programmable output voltage: The output voltage of the TL431BQDBVR can be programmed by connecting an external resistor between the output and the reference terminal.
3. Low ground current: The TL431BQDBVR has a low ground current of only 1μA, which makes it suitable for use in low-power applications.
4. Thermal protection: The TL431BQDBVR features an internal thermal shutdown circuit that protects the device from overheating.
5. Small package size: The QDBVR package is small and compact, making it suitable for use in space-constrained applications.

Applications:

The TL431BQDBVR is used in a wide range of applications, including:

1. Voltage regulation: The TL431BQDBVR is commonly used as a precision shunt regulator in power supply circuits.
2. Current limiting: The TL431BQDBVR can be used to limit the current in a circuit by placing it in series with the load.
3. Battery management: The TL431BQDBVR can be used in battery management systems to regulate the charging and discharging of batteries.
4. LED dimming: The TL431BQDBVR can be used to control the brightness of LED lights by adjusting the current through the LED.
5. Motor control: The TL431BQDBVR can be used in motor control circuits to regulate the speed and direction of the motor.

Overall, the TL431BQDBVR is a versatile and precise shunt regulator that is widely used in a variety of applications. Its small package size and low ground current make it an ideal choice for use in compact and low-power circuits.