TL431BCDR2

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PMICs, or power management integrated circuits, are integrated circuits that provide power management, system load integration, power delivery, and power conversion for a variety of digital and analog circuit designs. Voltage references are voltage sources that allow the user to accurately maintain very precise voltage levels as needed for a particular application. As such, voltage references are essential for many applications, from medical and industrial equipment to computers, smartphones, and even automotive systems. The TL431BCDR2 is a voltage reference specifically designed for use in a wide range of control and feedback applications, from portable electronic devices to automotive and industrial systems. This article will discuss the application fields and working principles of the TL431BCDR2.

The TL431BCDR2 is a precision adjustable shunt regulator, providing an exceptionally accurate reference voltage with a wide adjustment range, adjustable from 2.5V to 36V. This makes it suitable for use as a voltage reference in a wide variety of applications. It can be used in circuits such as online power supplies, instrumentation systems, SCR/triac control circuits, motor control circuits, timing circuits, and switchmode power supplies. The TL431BCDR2 can also be used in systems for precision constant current or current limit circuits, as well as temperature control applications. In addition, the device is very stable and precise over a wide temperature range from -40°C to 125°C, ensuring precise and reliable operation in various environmental conditions.

The TL431BCDR2 can also be used as a bandgap voltage reference in circuits. Its high accuracy and low noise make it ideal for use in instrumentation and metering systems which require precisely regulated output voltage levels. It can also be used in circuits that require both a regulated voltage and current output, such as LED driver and LED display power supplies.

The TL431BCDR2 is based on an asymmetrical switching principle enabled by an integrated comparator and open collector NPN output stage. This allows it to provide an adjustable reference voltage in the range of 2.5V to 36V, with a tolerance of ±2%. The device is also equipped with a wide range of protection features, including output short circuit protection, overtemperature protection, and reset protection.

The TL431BCDR2 is designed to be powered from a 5V supply, although it can also be powered from a 12V supply or higher. The device features a high input voltage of up to 36V, low noise, and good stability over a wide temperature range. As such, it is well suited for use in applications where precision, low noise, and stability are essential.

In summary, the TL431BCDR2 is a precision adjustable shunt regulator providing an exceptionally accurate reference voltage with a wide adjustment range. The device has a wide range of uses, from instrumentation systems to LED drivers. Its high accuracy and low noise make it suitable for use in many applications, particularly those requiring precision and stability over a wide temperature range. This makes it an ideal choice for any application requiring a voltage reference.

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