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OSM5XAHDE1E Datasheet(PDF) 2 Page - OptoSupply International |
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OSM5XAHDE1E Datasheet(HTML) 2 Page - OptoSupply International |
2 / 2 page http://www.optosupply.com VER A.0 T To op pss 1 10 00 0 P Po ow we er r W Wa ar rm m W Wh hiitte e L LE ED D O OS SM M5 5X XA AH HD DE E1 1E E VER . 1 ■ Heat design The following pictures show some measurements of mounted 5W Led on the heat sink for each board A and B (See Fig 1) with using thermograph to make an observation about heat distribution. Each boards is tested at various current conditions. As a result, LED needs larger heat sink as much as possible to reduce its own case temperature. Fig. 1 Configuration pattern examples for board assembly Board LED power Material Surface area (m㎡) Min. A 5W Al 10,300 B 10W Al 20,600 C 25W Al 51,500 D 50W Al 103,000 E 100W Al 206,000 F 200W Al 412,000 G 300W Al 618,000 Above tested LED device is attached with adhesive sheet to the heatsink. For reference's sake, Tj absolute maximum rating is defined at 115℃ as a prerequisite on design process of 5W LED. <Fig.2> Board A (surface area=10,300m㎡) <Fig.3> Board B (surface area=20,600m㎡) IF=600mA IF=600mA LED & Application Technologies |
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