TL431AS-13

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TL431AS-13 is part of a family of adjustable 3-terminal regulators with guaranteed temperature stability and ruggedness over a wide temperature range of -40ºC to 125ºC. It is a self-contained, improved replacement for Zener diodes in convenient TO-92 and 3-lead surface mount SOT-23 packages. This device is intended as a precision voltage reference in many applications where tight voltage regulations and low noise are necessary. The output voltage (VREF) is trimmed to accurate values and is stable with time and temperature.

TL431AS-13 application field includes such areas as telecommunications systems, computer systems and peripherals, data acquisition systems and displays, dc-dc converters, power supplies, and general purpose applications.

In operation, the TL431AS-13 provides a low output voltage accuracy of ±2.0% with a low temperature coefficient and a low knee point (Vk) of 0.1V. Typical applications include using the device as a voltage reference in a regulator, a current source, or a comparator. With the TL431AS-13, the output voltage is pinned at one end of the device, while the third pin is a current input (IADJ). When IADJ is connected to a resistor, the current through the resistor sets the output voltage for the device. The device works with a wide supply voltage range of 2V to 36V and a load current of up to 500mA.

The TL431AS-13 also provides excellent dynamic performance, making it suitable for fast settling applications. With a typical settling time of 10µs, the device provides excellent accuracy. The TL431AS-13 offers wide step size accuracy, making it useful for applications such as voltage and current regulation, temperature compensation, and switching power converters. Additionally, the device has excellent transient response and high speed of operation, making it one of the most versatile voltage references in the market today.

Overall, the TL431AS-13 is an important member of the family of 3-terminal voltage regulators capable of providing tight voltage regulation and low noise performance in telecommunications, computer systems, power supplies, and general purpose applications. Operating with a wide supply range of 2V to 36V and a load current of up to 500mA, the device offers excellent accuracy and dynamic performance, making it suitable for fast settling applications. Additionally, the TL431AS-13 offers wide step size accuracy, making it suitable for a wide range of applications, including voltage and current regulation, temperature compensation, and switching power converters. So whether it be providing precision voltage reference designs in telecommunications, computer systems or power supplies - or simply being used as a comparator or current source - the TL431AS-13 is a great example of just how versatile and useful this family of adjustable, 3-terminal voltage references can be.

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