ON Semiconductor TL431BCP: Precision Programmable Reference

The TL431BCP from ON Semiconductor is a versatile, programmable precision shunt voltage reference IC. This three-terminal adjustable regulator offers excellent temperature stability and output current handling capability, making it an ideal choice for a wide range of applications in power supply and voltage regulation scenarios.

The TL431BCP is characterized by its ease of use and flexibility. It can be programmed with two external resistors to set the output voltage from 2.495 V to 36 V, providing a tailored solution for various circuit designs. Its low output noise and good thermal stability (with a typical temperature coefficient of only 50 ppm/°C) enhance the performance of power supplies, ensuring a stable reference under varying conditions.

This device is encapsulated in a TO-92 package, which is compact and suitable for through-hole mounting, thus making it convenient for prototyping as well as for production-level projects. The TL431BCP is capable of sourcing or sinking up to 100 mA of output current, and its dynamic impedance of 0.22 ohms ensures a stable voltage output even with load variations.

Safety and reliability are key features of the TL431BCP. It includes built-in thermal shutdown and overcurrent protection, safeguarding the device and the system it is a part of from potential damage due to excessive heat or current conditions. Its typical output voltage tolerance is ±2%, which ensures accurate voltage reference for the most demanding applications.

ON Semiconductor's commitment to quality is evident in the TL431BCP, which is designed to meet stringent requirements, making it suitable for use in consumer electronics, industrial control systems, and automotive applications where consistent performance is critical.

In summary, the TL431BCP is a highly reliable and precise adjustable shunt voltage regulator that provides a simple solution for voltage reference needs. Its programmability, stability, and protection features make it a versatile component for designers looking to enhance the performance of their power supply circuits.