DS46 Datasheet, PDF (12/15 Pages) Lumileds Lighting Company – power light source LUXEON® III Star

Current Derating Curves
Figure 8. Maximum Forward Current vs. Ambient Temperature.
Derating based on T_JMAX = 135ºC for White, Green, Cyan, Blue, and Royal Blue. Since LUXEON III may be driven at up to
1000mA, derating curves may not be applicable for all operating conditions.
1600
1400
1200
1000
800
600
400
200
R _{θ J-A} =25 ^oC/ W
R _{θ J-A} =20 ^oC/ W
R _{θ J-A} =15 ^oC/ W
0
0 25 50
75 100 125 150
T_A - Am bient Tem perature ( ^οC)
Figure 9. Maximum Forward Current vs. Ambient Temperature.
Derating based on T_JMAX = 135°C for Red, Red Orange, and Amber.
LUXEON III Star DS46 (3/06)
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