STMicroelectronics

TL431CD

TL431CD Description

The TL431CD is a precision shunt voltage reference IC designed by STMicroelectronics. This device offers adjustable output voltage capabilities, making it highly versatile for a range of applications. The TL431CD features an output voltage range from 2.495V to 36V, with a tolerance of ±2.21%, ensuring precise voltage regulation. It supports a maximum output current of 100 mA, providing robust performance for various electronic circuits. The TL431CD is housed in a surface-mount package, specifically an 8SO package, which is ideal for compact and space-efficient designs. Despite its small form factor, it operates within a temperature range of 0°C to 70°C, making it suitable for a variety of environmental conditions. The device is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards.

TL431CD Features

• Adjustable Output Voltage: The TL431CD provides an adjustable output voltage range from 2.495V to 36V, offering flexibility in voltage regulation.
• High Output Current: Capable of delivering up to 100 mA of output current, it ensures stable performance in demanding applications.
• Precision Tolerance: With a tolerance of ±2.21%, the TL431CD offers high accuracy in voltage reference, crucial for precision circuits.
• Surface-Mount Package: The 8SO package is compact and suitable for surface-mount technology, facilitating integration into modern PCB designs.
• Wide Operating Temperature Range: The TL431CD operates reliably within a temperature range of 0°C to 70°C, making it suitable for various environmental conditions.
• Compliance and Safety: The device is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.
• Low Cathode Current: Requires only 1 mA of cathode current, minimizing power consumption and heat generation.

TL431CD Applications

The TL431CD is ideal for a variety of applications where precise voltage regulation is required. Some specific use cases include:

• Power Supplies: Used in voltage regulation circuits to ensure stable output voltage.
• Battery Chargers: Provides a stable reference voltage for accurate charging control.
• Instrumentation: Ensures precise voltage levels in measurement devices.
• Telecommunications: Used in power management circuits for stable voltage regulation.
• Consumer Electronics: Ideal for voltage regulation in various consumer devices.

Conclusion of TL431CD

The TL431CD from STMicroelectronics is a versatile and precise shunt voltage reference IC. Its adjustable output voltage, high output current, and precise tolerance make it suitable for a wide range of applications. The surface-mount 8SO package ensures easy integration into compact designs, while its wide operating temperature range and compliance with environmental standards make it a reliable choice. Despite being marked as obsolete, the TL431CD remains a valuable component for engineers and designers seeking precise voltage regulation in their circuits.