Cree: Difference between revisions

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Revision as of 08:59, 10 May 2012

336 bytes added , 10 May 2012

→‎XB-D

Brted

confirmed, developer

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edits

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 ==XB-D==
-Very compact LED (the die is mounted on a chip 2.45 mm square opposed to 3.45 mm square for XP series) introduced in February 2012, promising lower cost. Should provide similar brightness to XP-E LED's. First available units were warm white with Q2 brightness bin (at 350mA). Can be driven up to 1000mA. [http://www.cree.com/products/pdf/XLampXB-D.pdf Datasheet], [http://www.cree.com/news-and-events/cree-news/press-releases/2012/january/120111-xbd press release].
+Very compact LED (the die is mounted on a chip 2.45 mm square opposed to 3.45 mm square for XP series) introduced in February 2012, promising lower cost. Should provide similar brightness to XP-E LED's. First available units were warm white with Q2 brightness bin (at 350mA). Like the XT-E, the LED's are binned by lumen output at a temperature of 85 degrees C instead of 25 degrees like earlier LED's. Since the datasheets indicate 14% higher output at 25 degrees, the output numbers from Cree have been increased in the table below for 25 degrees (also see [[XB-D output]]) to make it easier to compare LED's. Can be driven up to 1000mA. [http://www.cree.com/products/pdf/XLampXB-D.pdf Datasheet], [http://www.cree.com/news-and-events/cree-news/press-releases/2012/january/120111-xbd press release].
 {|class="wikitable" style="text-align: center; width: 400px;"
@@ Line 43: / Line 43: @@
 !Bin      !!   350mA<BR>100%    !!    700mA<BR>175%    !!    1000mA<BR>222%
 |- style="background: #fdb"
-|Q2    || 87.4-93.9  ||   153-164   ||   193-207
+|Q2    ||  100-107  ||    174-187   ||   220-236
 |- style="background: #fdb"
-|Q3    || 93.9-100   ||   164-172   ||   207-222
+|Q3    ||  107-114   ||   187-196   ||   236-253
 |- style="background: #fdb"
-|Q4    ||  100-107   ||   172-187   ||   222-236
+|Q4    ||  114-122   ||   196-213   ||   253-269
 |- style="background: #fdb"
-|Q5    ||  107-114   ||   187-199   ||   236-252
+|Q5    ||  122-130   ||   213-227   ||   269-287
 |- style="background: #ffb"
-|R2    ||  114-122   ||   199-213   ||   252-270
+|R2    ||  130-139   ||   227-243   ||   287-308
 |- style="background: #ffb"
-|R3    ||  122-130   ||   213-227   ||   270-287
+|R3    ||  139-148   ||   243-259   ||   308-327
 |- style="background: #ffb"
-|R4    ||  130-139   ||   227-243   ||   287-309
+|R4    ||  148-158   ||   259-277   ||   327-352
 |}