STMicroelectronics TL431ACZT Precision Programmable Reference

The TL431ACZT from STMicroelectronics is a versatile, precision programmable voltage reference with an output range typically from 2.495 volts to 36 volts. This three-terminal adjustable shunt regulator provides excellent temperature stability and output current handling capability up to 100 mA. The device features a low output noise voltage, making it suitable for high-end and noise-sensitive applications.

With its easy programmability and a broad range of adjustable voltages, the TL431ACZT is a popular choice for power supplies, battery chargers, and voltage monitoring applications. Its ability to act as a precise voltage reference in combination with operational amplifiers makes it a versatile component in analog circuits. In addition, the device can be used in numerous other applications such as a replacement for zener diodes in many applications requiring an improvement in zener performance.

The TL431ACZT offers a typical dynamic output impedance of 0.2 ohms. This low impedance and the capability to sink a significant load current make it a robust choice for a variety of demanding applications. The device also features a typical temperature coefficient of 50 ppm/°C, ensuring a consistent performance over a wide temperature range, which is critical for applications requiring high precision.

STMicroelectronics has designed the TL431ACZT to be highly reliable, with a typical operational life of 10 years, ensuring long-term stability for systems in which it is employed. The package is TO-92, which is widely used and suitable for through-hole mounting, making it easy to integrate into existing designs.

For designers and engineers looking for a flexible and reliable voltage reference solution, the TL431ACZT from STMicroelectronics offers a compelling combination of performance, precision, and ease of use. Its availability in a standard package and its industry-proven design make it an excellent choice for both new designs and upgrades to existing systems.

Whether you're designing power supply circuits, precision regulators, or looking for a reliable reference voltage source, the TL431ACZT provides the performance and flexibility to meet a wide range of design requirements.