DS60 Datasheet, PDF (16/26 Pages) Dallas Semiconductor – Micro-Centigrade Temperature Sensor

Current Derating Curves
Note: Current derating curves are intended to represent the operational limits of the product as identified in Table 6. For lumen
maintenance information and conditions, please refer to the Average Lumen Maintenance Characteristics section in this document.
Current Derating Curve for 1500 mA Drive Current
Cool White
1800.00
1500.00
1200.00
900.00
600.00
RΞRj-θa_j-ja=_a =101°0CºC/W/W
300.00
RΞRj-θa_j-ja=_a =151°5CºC/W/W
RΞRj-θaj-_ja=_a =202°0CºC/W/W
0.00
0
R_ΞRj-θa_j-ja=_a =252°5CºC/W/W
25
50
75
100
125
150
175
T_A Am^Tab^-ie^An^mt ^bTⁱe^em^ntp^Te^er^mat^pu^ere^ra(^tº^uC^r)^{e (°C)}
Figure 14: Maximum forward current vs. ambient temperature, based on T_JMAX = 150ºC.
Current Derating Curve for 1000 mA Drive Current
Cool White
1200.00
1000.00
800.00
600.00
400.00
200.00
RR0R_jθ_-j-ajaa==₁1₀0_°º_CC_//_WW
RR0_{Rjθ-j-ajaa==1155°ºCC//WW}
RR0_{Rjθ-j-ajaa==2200°ºCC//WW}
RR0_{Rjθ-j-ajaa==2255°ºCC//WW}
0.00
0
25
50
75
100
125
150
175
T_A TAam- bAimenbtieTnetmTpemerpaeturaretu(rºeC()°C)
Figure 15: Maximum forward current vs. ambient temperature, based on T_JMAX = 150ºC.
LUXEON K2 with TFFC Datasheet DS60 (10/07)
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