The AL8820 LED driver converter fromDiodes Incorporated is a compact, two-stage, boost/buck non-dimmable MR16 lamp design solution, that is simultaneously characterized by high power factor, low total harmonic distortion (THD) and low-output current ripple. For example, in a 6W MR16 application, the device operates flicker-free with most common LED lighting transformers at a power factor of 0.9 and THD of 30%.
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Combining two dc-dc regulators in the 5mm x 6mm SO-8EP package, the AL8820 operates in continuous-current mode and employs an innovative control scheme to ensure high compatibility with most commonly used electronic transformers. A low RDSON internal 40V/2A NDMOS switch helps minimize power losses while supporting the delivery of large output powers in a wide range of 5W to 7W MR16 LED lamps.
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The AL8820’s comprehensive integrated protection features include: under-voltage lock out, output short circuit, output open-circuit, over-current, over-voltage and over-temperature protection. The AL8820 LED driver converter for MR16 lamp design is priced at $0.45USD each in 10K quantities.
source: http://www.powerpulse.net/story.php?storyID=31317
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