ON Semiconductor TL431BVDR2: Precision Programmable Reference

The ON Semiconductor TL431BVDR2 is a versatile and precise programmable voltage reference that offers exceptional performance in a wide range of applications. This shunt voltage reference can be programmed to any value between Vref (approximately 2.495 volts) and 36 volts with two external resistors. Its high level of accuracy and stability makes it an ideal choice for power supplies, battery chargers, and voltage monitoring applications.

This three-terminal adjustable shunt regulator features a guaranteed temperature stability over the entire temperature range of operation. The TL431BVDR2 comes in a small outline transistor (SOT-23) package, making it suitable for space-constrained applications. The compact form factor, combined with its surface-mount design, allows for efficient use of PCB real estate and is favorable for automated assembly processes.

The output voltage may be set to any value above the reference voltage (2.495 V) up to 36 volts with the use of two external resistors. These resistors can be adjusted to tailor the output voltage to a specific application, providing designers with a high degree of flexibility. The device features a typical dynamic output impedance of 0.2 ohms, ensuring stable voltage regulation even with load variations. The TL431BVDR2 has a typical output current of 100 mA, making it capable of handling a wide range of load conditions.

With a typical temperature coefficient of only 50 ppm/°C, the TL431BVDR2 ensures consistent performance over a temperature range of -40°C to +85°C. This precision voltage reference also includes safety features such as overcurrent protection, ensuring reliable operation under various conditions.

Whether you're designing power supplies, battery management systems, or need a reliable voltage reference for precision analog circuits, the ON Semiconductor TL431BVDR2 offers a high-quality, cost-effective solution. Its combination of flexibility, precision, and compact packaging makes it an excellent choice for both high-volume consumer applications and precision industrial equipment.

For detailed specifications and application guidance, refer to the ON Semiconductor TL431BVDR2 datasheet, which provides comprehensive information to assist in the integration of this voltage reference into your design.