LED Circuit Protector keeps strings lit if single LED fails.
Press Release Summary:
Series PLED5 provides open-defect, ESD, and lightning protection, as well as protection against reverse battery/power connections. Voltage-triggered electronic shunt device provides current bypass if single LED fails into open circuit condition, and open defects can be controlled without negatively affecting power supply voltage. Design ensures against loss of entire string of LEDs due to failure of one LED.
Original Press Release:
Littelfuse Introduces PLED5 Open LED Protector that Keeps LED Strings Lighted if a Single LED Fails
The New device also provide ESD circuit protection needed for high-intensity LEDs
CHICAGO, Illinois - Littelfuse, Inc. (NASDAQ/NGS:LFUS) has introduced the PLED5 circuit protection device that provide unique 3-in-1 protection for LED strings, including open LED protection, ESD and lightning protection, and protection against reverse battery/power connections. The new device is particularly useful for maintaining brightness and reliability in the growing market for outdoor LED lighting and high-intensity LED applications.
The PLED design is a voltage-triggered electronic shunt device that provides a current bypass in the case of a single LED failing into an open circuit condition. The design ensures against the loss of an entire string of LEDs due to the failure of a single LED.
This is the latest protection device from Littelfuse targeted for the new wave of LEDs that are being implemented in a wide range of applications ranging from advertising lighting, and traffic lighting to aircraft lighting and runway lighting. The demand for high reliability in these applications places a premium on the correct circuit design approach. In addition, the high-intensity white/blue/green LEDs typically used in these applications implement a sapphire substrate that may have a low ESD tolerance level. Because of this weakness, these LED strings need appropriate ESD protection.
When the Littelfuse PLED5 string protectors are compared with conventional LED protection measures, the device provide a simpler and more economical circuit design, reduce LED color unevenness, and prevent voltage level sags in the power supply typically observed when zener diodes are used, thus resulting in higher energy efficiency.
Here are some key advantages of the PLED5 device:
Availability
PLED5 Series samples are available now for order and sample request through authorized Littelfuse distributors worldwide. The PLED5 LED string protector devices are available 8-12 weeks ARO, in 3000 quantity reel pack for the QFN version.
For more information about the PLED Series, please visit the Littelfuse web site at www.littelfuse.com or contact your local Littelfuse Technical Support expert.
For circuit protection application design ideas, please visit the new Application Design Center section of the Littelfuse web site.
Littelfuse is widely recognized for its circuit protection expertise, which is backed by its well-equipped Applications and Testing Labs, and a global product delivery network. If you have questions or require additional support, please contact the Littelfuse technical support hotline at 1-800-999-9445 .
About Littelfuse
As the worldwide leader in circuit protection products and solutions with annual sales of $430.1 million in 2009, the Littelfuse portfolio is backed by industry-leading technical support, design and manufacturing expertise. Littelfuse products are vital components in virtually every product that uses electrical energy, including automobiles, computers, consumer electronics, handheld devices, industrial equipment and telecom/datacom circuits. Littelfuse offers Teccor®, Wickmann® and Pudenz® brand circuit protection products. In addition to its Chicago, Illinois, world headquarters, Littelfuse has sales, distribution, manufacturing and engineering facilities in Brazil, Canada, China, England, Germany, Hong Kong, India, Japan, Korea, Mexico, the Netherlands, the Philippines, Singapore, Taiwan and the United States.
For more information, please visit Littelfuse's web site at www.littelfuse.com.
