Product Brief
Cree redefines high voltage LEDs
Ismini Scouras10/27/2011 11:22 AM EDT
Comment
docdivakar
@Winfield Hill: ditto, I would love to see a detailed datasheet. Blurbs like ...
Ryszard.Milewicz
As this is multi-chip package, adding some amber chips inside package should ...
Cree Inc. announced the commercial availability of high-voltage XLamp XT-E and XM-L LEDs optimized for small form factor lighting applications.
The XLamp XT-E and XM-L LEDs can enable the use of more efficient, smaller drivers to lower cost for compact lighting applications such as candelabras and retrofit lamps.
According to Cree, small-form-factor lighting, like candelabras, historically presented a host of challenges for LED technology. Prior LEDs were unable to deliver the required system-level performance in the form factor consumers demanded.
The XLamp XM-L LED delivers up to 600 lm in Cool White (6000K) and up to 462 lm in Warm White (3000K) at 6W, 85°C. The XLamp XT-E LED delivers up to 300 lm in Cool White (6000K) and up to 228 lm in Warm White (3000K) at 3W, 85°C. Both LEDs have a typical voltage of 46V at binning conditions.
Pricing: XM-L High Voltage is in the $3-4 range. XT-E High Voltage is about $1.50-2.50. Both are for moderate volume.
Availability: Now in production quantities with standard lead times.
Datasheet: Click here.
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Winfield Hill
10/28/2011 6:58 AM EDT
Wow, small 46-volt 6-watt LEDs, cool!
Hey guys, the link doesn't give us the datasheet we're craving, but merely a 2-page blurb. How about also including a link to the manufacturer's web page in your stories, that'll help us get what we need. You know, like http://www.cree.com/
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Ryszard.Milewicz
11/9/2011 5:24 AM EST
As this is multi-chip package, adding some amber chips inside package should improve warm white efficiency up to cold white levels (as currently Osram did).
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docdivakar
11/16/2011 2:16 PM EST
@Winfield Hill: ditto, I would love to see a detailed datasheet. Blurbs like these do nothing other than announce a product!
@Ryszard.Milewicz: I suspect it is a solution with strips of LED arrays spaced as needed by packaging/thermal considerations and not individual LED chips. That is why it may be difficult to add other wavelength light sources you describe. Either way, the trick in containing thermal issues in an array of LEDs is to switch & drive each/groups of LEDs alternately so that the light output remains the same while the temperatures can be contained.
MP Divakar
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