STMicroelectronics TL431AIA Precision Programmable Reference

The TL431AIA from STMicroelectronics is a versatile, precision programmable voltage reference that can be used in a wide range of voltage regulation and control applications. This three-terminal adjustable shunt regulator features a guaranteed temperature stability over the entire temperature range of operation, making it an ideal choice for precision voltage regulation in mixed analog and digital circuits.

With a typical dynamic output impedance of 0.2 ohms, the TL431AIA provides excellent stability and low noise performance. The output voltage can be set to any value between 2.495 V and 36 V with two external resistors. This flexibility allows designers to tailor the voltage reference to suit a variety of requirements, making it a versatile component for power supplies, battery chargers, and voltage monitoring applications.

The device is characterized for operation from -40°C to 125°C, ensuring reliable performance across a broad range of operating conditions. It comes in a TO-92 package, which is widely used and easy to integrate into a variety of circuit designs. The TL431AIA's standard package also allows for easy replacement or upgrades to existing circuit designs without the need for significant redesign.

In terms of protection features, the TL431AIA incorporates over-current protection, ensuring that the device remains safe even under fault conditions. This makes it a robust choice for critical applications where reliability is paramount.

STMicroelectronics has designed the TL431AIA with a focus on providing a high-quality, reliable voltage reference that meets the stringent requirements of modern electronic systems. Whether used in power supply circuits, analog-to-digital converters, or as a simple voltage monitor, the TL431AIA offers designers a combination of flexibility, stability, and reliability.

For detailed specifications, application circuits, and additional information, engineers and designers are encouraged to consult the datasheet and technical documentation provided by STMicroelectronics.