Product Overview: Texas Instruments TL431BQDBZR

The Texas Instruments TL431BQDBZR is a precision programmable reference that is a part of the TL431 family, renowned for its versatility and reliability in a wide array of voltage regulation applications. This shunt voltage reference can be thought of as an adjustable zener diode, but with superior characteristics that include low output noise, high stability, and precision over temperature variations.

Encased in a small SOT-23 package, the TL431BQDBZR is designed for surface mount technology, making it ideal for compact circuit board designs. It operates over a wide current range from 1 mA to 100 mA, offering designers flexibility in various configurations. The output voltage can be set to any value between Vref (approximately 2.495 V) and 36 V with the use of two external resistors (R1 and R2).

Key Features:

• Adjustable Output Voltage: This device allows for an adjustable output voltage that can be set from 2.495 V to 36 V, providing a versatile solution for different voltage requirements.
• High Accuracy: Featuring a typical temperature coefficient of only 50 ppm/°C, the TL431BQDBZR ensures high accuracy across a wide temperature range, making it suitable for precision applications.
• Low Operational Current: The TL431BQDBZR is capable of operating at low currents, with a typical dynamic impedance of 0.22 ohms, contributing to efficient system performance.
• Stability and Reliability: Texas Instruments ensures that this component delivers excellent stability and reliability, which is critical for maintaining consistent performance in various electronic systems.
• Compact Form Factor: The SOT-23 package is small and ideal for space-constrained applications, allowing for high-density PCB layouts.

Applications:

The TL431BQDBZR is highly versatile and can be used in numerous applications, including:

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

With its combination of features, the Texas Instruments TL431BQDBZR is a go-to solution for engineers and designers looking for a reliable and precise voltage reference. Its ease of use, coupled with its high level of performance, makes it an essential component in the design of robust and efficient electronic systems.