LT1431CZ#TRPBF

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A voltage reference is a device which provides a precise reference voltage regardless of the power supply or other varying conditions, making it an essential component in electronic circuits. The LT1431CZ#TRPBF is a low-voltage temperature-compensated reference operating over a wide range of temperatures and provides superior performance characteristics.

Application Field

The LT1431CZ#TRPBF is a general-purpose band gap voltage reference integrated circuit that achieves a high level of performance when used in systems requiring high voltage accuracy, very low temperature coefficients and dynamic stability. It is suitable for a wide range of applications such as test equipment, instrumentation and control, battery powered products, portable medical equipment, and professional audio equipment.

Some applications for LT1431CZ#TRPBF include voltage regulators, instrumentation and control systems, portable medical equipment, and high-end audio equipment. It is also very commonly used in automotive applications, such as car battery chargers and voltage reducers, due to its robust performance in demanding conditions.

Working Principle

The LT1431CZ#TRPBF consists of two closely matched vertical PN junction diodes that are connected in series and controlled by a circuit that varies the current in each diode, which in turn adjusts the voltage between the diodes. This creates a reference voltage that tracks the temperature coefficient of the diode. The impedances of the series connected diodes have been carefully matched to create a very low temperature coefficient in the final reference voltage.

The reference voltage is provided at the output pin of the device and can be adjusted using a trim pot. There is also an output disable pin that can be used to disconnect the reference voltage output when needed.The device is packaged in a miniature SOT23 package, allowing it to take up minimal PCB space and makes it ideal for use in tight spaces.

The LT1431CZ#TRPBF is a versatile voltage reference device that is suitable for a wide range of applications. It features low temperature coefficients and excellent dynamic stability, making it the ideal choice for applications that require high voltage accuracy and reliable operation in a range of conditions.

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