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LXK2-PWN2-R00 数据表(PDF) 27 Page - Lumileds Lighting Company |
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LXK2-PWN2-R00 数据表(HTML) 27 Page - Lumileds Lighting Company |
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27 / 41 page  LUXEON K2 Datasheet DS51 (7/07) 27 Current Derating Curve for 350 mA Drive Current Red, RedOrange and Amber Current Derating Curve for 700 mA Drive Current CoolWhite, NeutralWhite, WarmWhite 0 50 100 150 200 250 300 350 400 50 75 100 125 150 175 TA - Ambient Temperature (°° C) 0 100 200 300 400 500 600 700 800 0 25 50 75 100 125 150 175 TA - Ambient Temperature (ð C) R J-A=40 oC/W R J-A=30 oC/W R J-A=25oC/W R J-A=20 oC/W R J-A=15 oC/W Figure 21: Maximum forward current vs. ambient temperature, based on TJMAX = 150ºC. Figure 22: Maximum forward current vs. ambient temperature, based on TJMAX = 150ºC. TA - Ambient Temperature (ºC) R R θθ J J A A= =4 40 0ººC C//W W R R θθ J J A A= =3 30 0ººC C//W W R R θθ J J A A= =2 25 5ººC C//W W R R θθ J J A A= =2 20 0ººC C//W W R R θθ J J A A= =1 15 5ººC C//W W R R θθ J J A A= =5 50 0ººC C//W W R R θθ J J A A= =4 40 0ººC C//W W R R θθ J J A A= =3 30 0ººC C//W W TA - Ambient Temperature (ºC) |
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