ON Semiconductor TL431IDR2G Precision Programmable Reference

The TL431IDR2G from ON Semiconductor is a versatile, precision programmable voltage reference that can be set to any value between Vref (approximately 2.495 V) and 36 V with two external resistors. This three-terminal adjustable shunt regulator is commonly used in a wide range of voltage regulation and control applications, making it an essential component for power supplies, battery chargers, and voltage monitoring systems.

This device features a guaranteed reference accuracy of ±1% at 25°C and ±2% over the entire operating temperature range of -40°C to +85°C, ensuring reliable performance in various conditions. The low output noise of the TL431IDR2G, coupled with its excellent temperature stability, makes it ideal for precision applications.

The TL431IDR2G comes in a small surface-mount SOT-23 package, providing a compact solution for space-constrained applications. Its typical dynamic output impedance of 0.2 ohms, combined with a rated current of 100 mA, allows for flexible design options and robust operation in most circuit configurations.

This adjustable shunt regulator also features a low current draw, with a typical quiescent current of 1 mA, which is particularly advantageous for power-sensitive designs. Additionally, the TL431IDR2G offers excellent transient response characteristics, which helps maintain voltage stability during rapid changes in load or input voltage.

ON Semiconductor's commitment to quality ensures that the TL431IDR2G is a reliable choice for designers looking to implement a precision voltage reference in their systems. Whether it's being used in an adjustable power supply, as a voltage monitor, or as a current limiter, the TL431IDR2G provides the performance and flexibility needed to meet a wide array of design requirements.

Overall, the TL431IDR2G is a highly versatile and reliable component that offers designers a compact, precise, and stable voltage reference solution, backed by ON Semiconductor's reputation for high-quality electronic components.