DS51 Datasheet, PDF (24/41 Pages) Lumileds Lighting Company – the most robust and powerful LED

Typical Relative Luminous Flux
Relative Luminous Flux vs. Forward Current for Cool White,
Neutral White, Warm White, Green, Cyan, Blue and Royal Blue
Junction Temperature, T_J = 25°C
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
200 400 600 800 1000 1200 1400 1600
I_f - Forward Current (mA)
Figure 16. Relative luminous flux or radiometric power vs. forward current for white, green, cyan, blue
and royal blue at T_J = 25ºC maintained, test current 350 mA.
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
200 400 600 800 1000 1200 1400 1600
I_f - Forward Current (mA)
Figure 17. Relative luminous flux or radiometric power vs. forward current for white, green, cyan, blue
and royal blue at T_J = 25ºC maintained, test current 1000 mA.
Notes for Figures 16 & 17:
Driving these high power devices at currents less than the test conditions (350 mA or 1000 mA) may produce unpre
dictable results and may be subject to variation in performance. Pulse width modulation (PWM) is recommended for
dimming effects.
LUXEON K2 Datasheet DS51 (7/07)
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