DS51 Datasheet, PDF (28/41 Pages) Lumileds Lighting Company – the most robust and powerful LED

Current Derating Curve for 700 mA Drive Current
Green, Cyan, Blue and Royal Blue
800
700
600
500
400
300
200
100
0
Rθ_{J A}=50ºC/W
Rθ_{J A}=40ºC/W
Rθ_{J A}=30ºC/W
Rθ_{J A}=25ºC/W
Rθ_{J A}=20ºC/W
Rθ_{J A}=15ºC/W
0
25 50
75 100 125 150 175
T_A - ATm_A -bAiemnbt iTeenmt Tpeemrapteuraretu(rºeC()^ C)
Figure 23: Maximum forward current vs. ambient temperature, based on T_JMAX = 175ºC.
200
Current Derating Curve for 700 mA Drive Current
Red, Red Orange and Amber
800
700
600
500
400
300
200
100
Rθ_{J A}=30ºC/W
Rθ_{J A}=25ºC/W
Rθ_{J A}=20ºC/W
Rθ_{J A}=15ºC/W
0
0
25
50
75
100
125
T_A - A^TmA ^-b^Ai^men^bt^ieTⁿe^tm^Tep^mer^pa^et^ru^ar^te^ur(^eºC^(â‰)^C)
Figure 24: Maximum forward current vs. ambient temperature, based on T_JMAX = 100ºC.
LUXEON K2 Datasheet DS51 (7/07)
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