Overview of Texas Instruments TL431BQDBVR

The TL431BQDBVR is a precision programmable reference from Texas Instruments, renowned for its flexibility and reliability. This three-terminal adjustable shunt regulator offers a specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between Vref (approximately 2.495 V) and 36 V with two external resistors.

Key Features

• Adjustable Output Voltage: It can be programmed from Vref up to 36 V with only two external resistors.
• Low Output Noise: This device is designed for low output noise, making it suitable for precision electronics.
• High Stability: Offers high stability over the full temperature range, ensuring reliable performance in a variety of conditions.
• Low Dynamic Output Impedance: The dynamic output impedance is a low 0.2 ohms, indicative of good regulation.
• Fast Turn-on Response: The device has a typical output impedance of 0.22 Ω, contributing to a quick response to load changes.

Applications

The TL431BQDBVR is versatile and can be used in a wide range of applications, including:

• Power supplies
• Battery chargers
• Voltage monitoring
• Adjustable voltage or current regulators
• Precision current limiters

Package and Quality

This device is offered in the small outline transistor (SOT-23) package, which is ideal for space-constrained applications. The TL431BQDBVR is characterized for operation from -40°C to 125°C, making it suitable for automotive systems and other harsh environments. Texas Instruments ensures the highest quality and reliability, with the device being compliant with RoHS standards.

Conclusion

The TL431BQDBVR from Texas Instruments stands out as a robust, flexible, and precise voltage reference solution. Its ability to be programmed for a wide range of voltages and its stable performance make it an excellent choice for engineers looking for a dependable component for their power supply and regulation needs.