TLVH431ACDBVRG4

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TLVH431ACDBVRG4 is a 3-terminal, adjustable shunt voltage reference from Texas Instruments, part of the TLVH431 family of precision voltage references. This part is designed for use as a precision voltage reference in applications such as industrial and automotive process control, data acquisition and communications systems, instrumentation and measurements, audio equipment and other applications requiring wide operating temperature range and high precision supply voltage references.

The TLVH431 family provides an output voltage in the range of 0.2 V to 4.5 V, with an accuracy of 0.2% (typical). In addition to its excellent temperature coefficient, the device includes an internal power-on reset that ensures a valid low-level reference value is initially available. For current sharing or improved noise performance, multiple reference devices can be easily interlocked together.

The TLVH431ACDBVRG4 is a voltage reference used in many different type of applications such as: process control, data acquisition, communication systems, instrumentation, audio equipment, monitoring and measurement, etc. It is widely used in precision voltage control and regulation to provide an accurate voltage source.

Its working principle is relatively simple and involves an adjustable resistor connected between the supply voltage and the output voltage. It is designed to provide an accurate reference voltage under varying load conditions. It consists of an active element such as a zener diode or transistor, an adjustable resistor, and a fixed resistor. The active element draws a fixed current from the supply and the adjustable resistor controls the output voltage based on the value of the fixed resistor. The output voltage is directly proportional to the ratio of the adjustable resistor and the fixed resistor.

In summary, the TLVH431ACDBVRG4 is a 3-terminal, adjustable voltage reference from Texas Instruments, which can be used in applications that require precision voltage references, such as process control, data acquisition, communication systems, and audio equipment, as well as a wide operating temperature range. It works by creating a voltage reference across the adjustable resistor and the fixed resistor, creating an output voltage directly proportional to the ratio of the two, creating an accurate and stable voltage reference that can be used for voltage regulation.

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