The TL431D from Texas Instruments is a versatile, precision programmable voltage reference that can be set to any value between 2.495 volts and 36 volts with the use of two external resistors. This three-terminal adjustable shunt regulator features a guaranteed temperature stability over the entire temperature range of operation. The device exhibits a typical dynamic output impedance of 0.2 ohms, providing excellent transient response characteristics.

Key Features

• Adjustable Output Voltage: Can be programmed from 2.495 V to 36 V with two external resistors.
• Low Output Noise: Ensures a stable reference for precision applications.
• Low Dynamic Output Impedance: 0.2 ohms typical, providing good transient response.
• Temperature Compensated: Operates over a full industrial temperature range (-40°C to 85°C).
• Standard Package: Available in 8-pin SOIC package, suitable for automated assembly processes.

Applications

The flexibility and accuracy of the TL431D make it an ideal choice for a wide range of applications, including power supplies, battery chargers, notebook/desktop computers, and adjustable regulators. Its ability to provide a stable reference voltage is crucial for systems that require high precision and reliability.

Quality and Reliability

Texas Instruments is known for its commitment to quality and the TL431D is no exception. It is designed to meet the stringent requirements of the automotive industry, including those outlined by the AEC-Q100 standard. This ensures that the TL431D is reliable and capable of withstanding harsh environments, making it suitable for both consumer and industrial applications.

Support and Resources

For additional information, Texas Instruments provides extensive support resources, including datasheets, reference designs, and application notes. Customers can also access TI's online community and technical support for any further assistance with their design and application needs.