SP6686 Datasheet, PDF (7/13 Pages) Sipex Corporation – 400mA Buck/Boost Charge Pump LED Driver

TYPICAL PERFORMANCE CHARACTERISTICS
V_IN = 3.6, Typical Application, D1 = AOT2015HPW-1915B LED,T_A = 25°C unless otherwise noted.
ENABLE
V_OUT
I_IN
(0.5A/div)
Figure 15. Startup Torch, Vin=3.6V, Vout=3.1V
Cin=4.7µF,C_FC=0.47µF, Cout=2.2µF
ENABLE
V_OUT
I_IN
(0.5A/div)
Figure 16. Startup Flash, Vin=3.6V, Vout=3.5V
Cin=4.7µF,C_FC=0.47µF, Cout=2.2µF
Flash
V_OUT
V_FB
I_OUT
(0.5A/div)
Figure 17. Torch in 1X to Flash 1X Mode,
Vin=4.2V, Cin=4.7µF,C_FC=0.47µF, Cout=2.2µF
Flash
V_OUT
V_FB
I_OUT
(0.5A/div)
Figure 18. Torch in 1X to Flash 2X Mode, Vin=3.6V,
Cin=4.7µF,C_FC=0.47µF, Cout=2.2µF
Date: 03/10/06
SP6686 400mA, Buck/Boost Charge Pump LED Driver
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