onsemi NUD4700 LED Shunts

Introduction

The onsemi NUD4700 LED Shunts are specialized components designed to enhance the reliability of 1W LED applications. These shunts provide a crucial current bypass in the event of an open circuit, ensuring that the LED system continues to function effectively.

Part Description

The NUD4700 LED Shunts are engineered for use with nominally 350mA @ 3V LEDs. They automatically reset when the LED is replaced or healed, making them a practical choice for applications where preventive maintenance is challenging. With a typical ON-state voltage of 1V and an OFF-state current of less than 250µA, these shunts are AEC-Q101 qualified, RoHS compliant, and designed for high reliability. Their simple two-terminal design allows for easy integration into various LED systems.

Applications

• LEDs where preventive maintenance is non-practical
• LED headlights
• LEDs with high reliability requirements
• Crowbar protection for open-circuit conditions
• Overvoltage protection for sensitive circuits

Industries

• Automotive
• Consumer Electronics
• Industrial Automation
• Lighting Solutions
• Telecommunications

Usage Ideas

1. Automotive Headlight Systems: Integrate the NUD4700 shunts into LED headlight assemblies to ensure continued operation in the event of a single LED failure, enhancing safety and reliability.

2. Smart Home Lighting: Use these shunts in smart LED lighting systems where maintenance access is limited, allowing for seamless operation even when individual LEDs fail.

3. Industrial Equipment: Implement the NUD4700 in LED indicators on industrial machinery to provide reliable status signals, preventing downtime due to LED failures.

Conclusion

The onsemi NUD4700 LED Shunts are an essential component for enhancing the reliability and functionality of LED systems across various applications and industries. Their automatic reset feature and compliance with industry standards make them an ideal choice for projects requiring high reliability and minimal maintenance.