'Best-in-Class' solid state lighting performance

12th November 2014

Jacqueline Regnier

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Fairchild has released the FL7733A single stage primary-side-regulated flyback LED driver for delivering constant brightness and instant flicker-free turn-on of LED lighting. Built for indoor and outdoor LED applications, ranging from 5 to over 60W, designers can easily overcome the challenge of meeting global standards and regulations for LED lighting with a single, scalable solution.

The FL7733A is a key component of Fairchild’s overall LED solutions that reduce component BOM, enable smaller lamp sizes and eliminate design complexities. It is ideal for SSL downlights, PAR and A19 bulb applications. With the driver, designers can:

Easily meet global standards with less than 10% total harmonic distortion and protection functions;
Simplify supply chain with one solution supporting designs over 60W with thermal management and short circuit protection mode;
Ensure maximum compatibility with high voltage LED modules with an ultra wide output voltage range of 10-100%;
Deliver flicker-free constant brightness over wide operating range with under ±3% constant current tolerance and less than 0.2s start up performance;
Enable compatibility with a variety of LED modules with output driving power of over 60W, twice that of competing solutions.

The total harmonic distortion of under 10% at universal line voltage conditions is significantly less that the 30% that makes up most regional regulations. This gives designers plenty of headroom to scale product offerings for various regions of the world. The FL7733A also uses dual over voltage protection to meet UL SELV under 60V output regulations.

“Fairchild’s FL7733A solves the major challenge customers have for LED applications that need to meet space and cost restrictions over a wide output voltage range,” said Preet Sibia, Director, Product Marketing, Fairchild. “The FL7733A driver has tight constant current regulation and excellent power factor/total harmonic distortion performance so designs can easily meet the many different requirements of the different regional markets our customers ship to.”