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Posts Tagged ‘Cree’

App note: Pulsed Over-Current Driving of LEDs

Sunday, May 20th, 2018

App note from CREE on driving LEDs over its specified current capability. Link here (PDF) The Applications Engineering team at Cree is often asked whether it is safe to operate Cree XLamp® LEDs with pulsed currents above the maximum data-sheet rating. This question is usually asked in the context of...

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App note: Optimizing PCB Thermal Performance for LEDs

Sunday, May 20th, 2018

Application note from CREE on efficiently designing a conventional FR4 PCB to manage thermal heat and as a cheap alternative to metal core pcbs. Link here (PDF) One of the most critical design parameters for an LED illumination system is the system’s ability to draw heat away from the LED...

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App note: Avoidance of ceramic-substrate-based LED chip cracking induced by PCB bending or flexing

Sunday, May 13th, 2018

Application note from CREE on the causes of ceramic-substrate-based failures due to PCB board stresses and how to minimize their occurrence. Link here (PDF) Printed circuit board (PCB) bending and/or flexing is an unavoidable phenomenon that is known to exist and is easily encountered during electronic board assembly processes. PCB...

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48″ T8 Cree LED tube teardown

Tuesday, April 26th, 2016

Electronupdate has posted a teardown video of 48" T8 Cree LED tube: LED based replacements for old T8 fixtures are finally becoming reasonably priced. I see two old competitors back at it again: CREE, and Philips. Both bulbs attractively priced, both 4000K. I tore down the Cree 1st. Longest circuit...

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  • Max: Seems like an unexpectedly violent way to remove the chip indeed. A hot air station should of course do the job just fine, but in...
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