onsemi

TL431BCD

TL431BCD Description

The TL431BCD is a precision shunt voltage reference IC designed by onsemi, offering adjustable output voltage with a wide range of 2.495V to 36V. This device is housed in an 8SOIC package, making it suitable for surface mount applications. Despite being marked as obsolete, the TL431BCD remains a reliable choice for various electronic designs due to its robust performance and compliance with industry standards such as REACH and HTSUS 8542.39.0001. The TL431BCD operates within a temperature range of 0°C to 70°C, ensuring stability and reliability in typical industrial environments.

TL431BCD Features

• Adjustable Output Voltage: The TL431BCD provides an adjustable output voltage range from 2.495V to 36V, making it highly versatile for a variety of applications.
• High Precision: With a tolerance of ±0.4%, the TL431BCD ensures high accuracy in voltage regulation, crucial for precision circuits.
• Low Temperature Coefficient: The typical temperature coefficient of 50ppm/°C ensures minimal drift in output voltage over varying temperatures, enhancing stability.
• High Output Current: Capable of delivering up to 100 mA of output current, the TL431BCD can support higher load requirements compared to similar devices.
• Low Cathode Current: The device operates with a low cathode current of 1 mA, reducing power consumption and heat generation.
• Moisture Sensitivity Level: With an MSL of 1 (Unlimited), the TL431BCD is suitable for applications in environments with varying humidity levels.
• Surface Mount Compatibility: The 8SOIC package allows for easy integration into modern PCB designs, facilitating compact and efficient circuit layouts.

TL431BCD Applications

The TL431BCD is ideal for a range of applications where precise voltage regulation is essential. Its adjustable output voltage and high precision make it suitable for:

• Power Supplies: As a reference voltage in linear and switching power supplies, ensuring stable output voltage.
• Battery Management Systems: Providing a stable reference for battery charging and monitoring circuits.
• Analog Circuits: Serving as a reference voltage in operational amplifiers, comparators, and other analog circuits.
• Industrial Control Systems: Ensuring accurate voltage levels in control and monitoring systems.
• Consumer Electronics: Used in devices where precise voltage regulation is necessary for optimal performance.

Conclusion of TL431BCD

The TL431BCD, despite its obsolete status, remains a valuable component in the electronics industry due to its high precision, wide adjustable voltage range, and robust performance. Its low temperature coefficient and high output current capabilities make it a reliable choice for applications requiring stable voltage references. The surface mount package and compliance with industry standards further enhance its suitability for modern electronic designs. For applications needing precise voltage regulation, the TL431BCD stands out as a dependable and versatile solution.