Product Overview: TL431AQDBVT from Texas Instruments

The TL431AQDBVT is a versatile, precision programmable reference from Texas Instruments, renowned for its reliability and performance. This shunt voltage reference IC is highly popular among engineers and designers for its flexibility and ease of use in a wide range of applications, including power supplies, battery chargers, and voltage monitoring circuits.

The device offers a guaranteed temperature coefficient and a low output voltage tolerance, ensuring high accuracy over its full operating temperature range. The TL431AQDBVT is characterized for operation from -40°C to 125°C, making it suitable for various challenging environments.

Key Features

• Programmable Output Voltage: The output voltage can be set to any value between Vref (approximately 2.495 V) and 36 V with two external resistors. This provides designers with a high degree of flexibility to match the specific requirements of their applications.
• High Accuracy: With a typical temperature stability of only 50 ppm/°C and a typical output voltage tolerance of 0.5%, the TL431AQDBVT ensures precise voltage regulation.
• Low Operational Current: The device features a low operational current of 1 mA to 100 mA, which contributes to the efficiency of the overall system and helps to minimize power consumption.
• Surface-Mount Package: The TL431AQDBVT comes in a small outline transistor (SOT-23) package, ideal for space-constrained applications.

Applications

The TL431AQDBVT's versatility makes it an excellent choice for a variety of applications, including:

• Adjustable voltage and current references
• Power supply monitors
• Switching power supplies
• Linear power supplies
• Digital voltmeters
• Battery-operated systems

Overall, Texas Instruments' TL431AQDBVT is a reliable and precise solution for designers looking to implement an adjustable shunt voltage reference in their electronic systems. Its combination of accuracy, stability, and versatility, along with the support and resources provided by Texas Instruments, makes it a go-to component for a multitude of applications.