Product Overview: Texas Instruments TL431AIDR

The TL431AIDR from Texas Instruments is a versatile and precision programmable reference that functions as a low-voltage zener with a 0.5% tolerance. Designed to provide a stable reference voltage over a wide range of operating conditions, this device is a staple in many power supply and voltage regulation applications.

This three-terminal shunt regulator diode features an output voltage range that is adjustable to any value between Vref (approximately 2.495 V) and 36 volts with two external resistors. Its low output noise, coupled with its excellent temperature stability, makes it ideal for precision applications. The TL431AIDR is commonly used in switch-mode power supplies, linear regulators, and adjustable voltage references, among other applications.

The device is characterized for operation from -40°C to 125°C, ensuring reliability and performance across a broad range of temperatures. Its 1% standard tolerance on nominal voltage allows for precise voltage regulation, which is critical in sensitive electronic applications.

Key Features:

• Adjustable Output Voltage: Vref to 36V
• Low Dynamic Output Impedance: 0.22 ohm typical
• Temperature Compensated for Operation over Full Rated Operating Temperature Range
• Low Output Noise Voltage
• Fast Turn-on Response
• Supplied in a small surface-mount package (SOIC-8)

With its fast turn-on response and the capability to sink up to 100mA of output current, the TL431AIDR can respond quickly to changing load conditions, making it an excellent choice for transient suppression and regulation tasks. The device’s low output noise enhances overall system performance, especially in audio and precision analog circuits.

For designers and engineers looking for a dependable voltage reference that combines flexibility with precision, the Texas Instruments TL431AIDR is an excellent choice. It's a testament to the quality and innovation that Texas Instruments brings to the field of voltage regulation technology.

Applications:

• Adjustable Voltage and Current References
• Switching Power Supplies
• Linear Regulators
• Digital Voltmeters
• Op-Amp Circuitry
• Battery Chargers