onsemi

TL431BCDR2

TL431BCDR2 Description

The TL431BCDR2 is an adjustable shunt voltage reference IC manufactured by onsemi, designed for precision voltage regulation and stabilization in a wide range of electronic applications. This device features an adjustable output voltage range from 2.495V to 36V, making it highly versatile for various power supply and reference voltage requirements. The TL431BCDR2 offers a maximum output current of 100 mA, ensuring robust performance in demanding applications. With a typical temperature coefficient of 50ppm/°C, it maintains high accuracy across its operating temperature range of 0°C to 70°C. The device is packaged in an 8-lead SOIC package, suitable for surface-mount applications, and is available in tape and reel format for convenient handling and assembly.

TL431BCDR2 Features

• Adjustable Output Voltage: The TL431BCDR2 provides a wide adjustable output voltage range from 2.495V to 36V, offering flexibility for diverse applications.
• High Output Current Capability: With a maximum output current of 100 mA, this device can support higher load requirements compared to similar voltage references.
• Low Temperature Coefficient: The typical temperature coefficient of 50ppm/°C ensures stable performance across the operating temperature range, minimizing drift and maintaining accuracy.
• Tight Tolerance: The ±0.4% tolerance guarantees precise voltage regulation, making it suitable for applications requiring high accuracy.
• Surface-Mount Compatibility: The 8-lead SOIC package is ideal for surface-mount technology (SMT), facilitating integration into compact and high-density PCB designs.
• Moisture Sensitivity Level 1: The MSL 1 (Unlimited) rating indicates that the device is not moisture-sensitive, simplifying handling and storage processes.
• Obsolete Status: While the TL431BCDR2 is marked as obsolete, it remains a reliable choice for existing designs and applications where its unique features are required.

TL431BCDR2 Applications

The TL431BCDR2 is well-suited for a variety of applications where precise voltage regulation and stability are critical. Its adjustable output voltage and high current capability make it ideal for:

• Power Supply Design: Used as a reference voltage in linear and switching power supplies to ensure stable output voltage.
• Battery Management Systems: Provides a stable reference voltage for accurate battery charging and monitoring circuits.
• Analog-to-Digital Converters (ADCs): Serves as a reference voltage source for ADCs, ensuring accurate and reliable analog-to-digital conversion.
• Precision Voltage Regulation: Ideal for applications requiring a stable and precise reference voltage, such as in instrumentation and control systems.
• Overvoltage Protection Circuits: Utilized in protection circuits to provide a stable reference for voltage monitoring and protection.

Conclusion of TL431BCDR2

The TL431BCDR2 from onsemi is a versatile and reliable adjustable shunt voltage reference IC, offering a wide output voltage range, high output current capability, and excellent temperature stability. Its surface-mount package and moisture sensitivity level 1 rating make it suitable for modern, high-density PCB designs. Despite its obsolete status, the TL431BCDR2 remains a valuable component for existing designs and applications where its unique features are essential. Its precision and stability make it an ideal choice for power supply design, battery management systems, ADC reference voltage sources, and precision voltage regulation applications.