Product Overview: Texas Instruments TL431IPK3

The Texas Instruments TL431IPK3 is a precision programmable reference that offers exceptional flexibility and performance for a wide array of electronic applications. This shunt voltage reference can be thought of as a Zener diode with enhanced capabilities, including the ability to set the voltage from Vref (approximately 2.495 volts) up to 36 volts with two external resistors.

Key Features

• Adjustable Output Voltage: The TL431IPK3 can be programmed to provide an output voltage ranging from 2.495 V to 36 V, offering designers the versatility to use it in various circuits without being limited to a fixed voltage.
• High Accuracy: With a typical temperature drift of only 50 ppm/°C and an initial accuracy of 0.5%, this voltage reference provides stable and precise voltage regulation, essential for sensitive electronic components.
• Low Operational Current: This device operates with a typical dynamic impedance of 0.22 ohms, ensuring high stability and low voltage drop across a wide range of operating currents.
• Extended Temperature Range: The TL431IPK3 is designed to operate over an extended industrial temperature range from -40°C to 85°C, making it suitable for harsh environments.

Applications

The TL431IPK3 is a versatile component that can be used in a variety of applications, including:

• Power Supplies
• Battery Chargers
• Voltage Monitoring
• Adjustable Voltage and Current References
• Switching Power Supplies

Package and Quality

The device comes in a TO-92 package, which is widely used for through-hole mounting, making it easy to integrate into various designs. Texas Instruments ensures high-quality standards for their products, and the TL431IPK3 is no exception, providing reliable and consistent performance for both commercial and industrial applications.

With its combination of flexibility, precision, and reliability, the Texas Instruments TL431IPK3 is an essential component for designers looking to create stable and accurate voltage references in their electronic projects.