The TL431BQDCKTG4 is a versatile and precision programmable reference from Texas Instruments, designed to offer a reliable solution for voltage regulation in a wide array of electronic applications. This shunt voltage reference IC operates as an adjustable precision Zener diode, which can be set to any value between Vref (approximately 2.495V) and 36 volts with two external resistors.

Key Features

• Adjustable Output: Voltage can be set to the desired level using external resistors.
• Low Output Noise: Provides a stable reference with minimal noise, ideal for sensitive electronics.
• Low Temperature Coefficient: Ensures consistent performance over a wide temperature range.
• High Accuracy: Features a typical output voltage tolerance of 0.5%, making it suitable for precision applications.
• Wide Operating Current Range: Can operate from 1mA to 100mA, offering flexibility for different circuit designs.

Applications

The TL431BQDCKTG4 is commonly used in various applications such as power supplies, battery chargers, and voltage monitors due to its flexibility and accuracy. Its ability to provide a stable reference voltage makes it an essential component in:

• Switching power supplies
• Linear power supplies
• Adjustable voltage or current regulators
• Precision current limiters
• Analog-to-digital converters (ADCs)
• Digital-to-analog converters (DACs)

Package and Quality

The TL431BQDCKTG4 comes in a small outline, 5-pin SC-70 package, which makes it suitable for space-constrained applications. The device is characterized for operation from -40°C to 85°C, ensuring reliable performance in a broad range of environments. Additionally, Texas Instruments provides this component with a standard qualification in accordance with their rigorous quality management and testing procedures, ensuring high reliability and performance consistency.