Texas Instruments

TL431CDG4  

Voltage References

TL431CDG4 Description

The TL431CDG4 is an adjustable shunt reference IC designed for precision voltage regulation in a wide range of power management applications. Manufactured by Texas Instruments, this device offers a highly accurate and stable reference voltage with a tolerance of ±2.2%. The TL431CDG4 operates within an output voltage range of 2.495V to 36V and can handle a maximum output current of 100 mA. It is housed in a surface-mount package, making it suitable for compact and space-constrained designs. Despite being marked as obsolete, the TL431CDG4 remains a reliable choice for applications requiring a stable reference voltage.

TL431CDG4 Features

• Adjustable Output Voltage: The TL431CDG4 provides a wide adjustable output voltage range from 2.495V to 36V, offering flexibility in various power management designs.
• High Precision: With a tolerance of ±2.2%, this IC ensures high precision and stability in voltage regulation, crucial for sensitive applications.
• High Output Current Capability: Capable of delivering up to 100 mA of output current, the TL431CDG4 can support higher load requirements compared to similar devices.
• Surface-Mount Package: The surface-mount package type allows for easy integration into modern PCB designs, optimizing space usage and enhancing reliability.
• Wide Operating Temperature Range: The TL431CDG4 operates reliably within an ambient temperature range of 0°C to 70°C, making it suitable for a variety of environmental conditions.
• Compliance and Safety: The device is REACH unaffected and RoHS3 compliant, ensuring it meets stringent environmental and safety standards.
• Moisture Sensitivity Level: With an MSL of 1 (Unlimited), the TL431CDG4 is suitable for storage and handling in various environments without the need for special precautions.

TL431CDG4 Applications

The TL431CDG4 is ideal for applications requiring precise voltage regulation and stability. Its adjustable output voltage and high current capability make it suitable for:

• Power Supply Circuits: Used as a reference voltage in linear and switching power supplies to ensure stable output voltage.
• Battery Management Systems: Provides a stable reference for voltage monitoring and regulation in battery charging and protection circuits.
• Industrial Control Systems: Ensures accurate voltage levels in control and monitoring systems, contributing to overall system reliability.
• Consumer Electronics: Used in various consumer devices where precise voltage regulation is necessary for optimal performance and longevity.
• Automotive Electronics: Suitable for automotive applications where stable voltage references are required for electronic control units (ECUs).

Conclusion of TL431CDG4

The TL431CDG4 from Texas Instruments is a versatile and reliable adjustable shunt reference IC, offering high precision and stability in voltage regulation. Its wide output voltage range, high current capability, and surface-mount package make it an excellent choice for a variety of power management applications. Despite its obsolete status, the TL431CDG4 remains a valuable component for engineers and designers seeking a dependable reference voltage solution. Its compliance with environmental and safety standards further enhances its suitability for modern electronic designs.

TL431CDG4 Documents

Download datasheets and manufacturer documentation for TL431CDG4

Datasheets :

TL431x, TL432x      

PCN Obsolescence/ EOL :

EOL 16/Jun/2023      

PCN Design/Specification :

TL431x/TL432x 13/Jul/2022