TL431AIDRE4

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The TL431AIDRE4 is a 3-Terminal adjustable shunt regulator featuring a guaranteed temperature stability of ±0.5%. This voltage reference device is from the Precision Monolithics Inc. (PMIC) voltage reference family. It is used in many application fields and operates according to a specific functional principle.

The TL431AIDRE4 has a wide range of applications. It is most commonly used as a reference for voltage regulators, general purpose comparators and precision timers. It can also be used in voltage level translator circuits, multiplexers and demultiplexers, as well as audio and RF amplifiers. Additionally, this voltage reference device is used in PLL synthesizers and clock-controlled circuits. Finally, the TL431AIDRE4 is also employed in battery charging applications.

The TL431AIDRE4 works on the principle of voltage comparison. It acts as an adjustable precision voltage reference and is biased by a constant current supplied through the ISET terminal. The voltage at the ADJ pin is compared with the reference voltage at the REF pin and the output is compensated depending on the variation of the ADJ voltage. A feedback compensation pin (VFB) helps maintain the output in its predetermined reference voltage range. The output is stable over temperature, line and load variations.

The TL431AIDRE4 operates from a wide input supply range of 2.5V to 18V. It has a reference voltage range from 2V to 36V and includes a current limiting circuit to deliver up to 100mA load without additional current limiting. The output voltage can be smoothly adjusted from 1V to 36V and is able to provide up to a 10µA reference current output.

In summary, the TL431AIDRE4 is an adjustable precision voltage reference device produced by PMIC. It is most commonly used in voltage regulators, comparators, timers, voltage level translators, multiplexers and demultiplexers and audio and RF amplifiers. It works on the principle of voltage comparison, with a 3-terminal structure that can supply up to 100mA of load. The TL431AIDRE4 operates over a wide input supply range of 2.5V to 18V and provides an output voltage of 1V to 36V.

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