Datasheet

V
100mV; AC
O
LEDCurrent
50mA/div
InductorCurrent
500mA/div
t- Time=20 s/divm
V
100mV; AC
O
LEDCurrent
50mA/div
InductorCurrent
500mA/div
t- Time=2 s/divm
0
2
4
6
8
1 2 3 4 5 6 7 8 9 10
DutyCycle-%
100Hz
1kHz
40kHz
LEDCurrent-mA
0
10
20
30
40
50
60
70
80
0 10 20 30 40 50 60 70 80 90 100
DutyCycle-%
LEDCurrent-mA
100Hz
1kHz
40kHz
TPS61166
www.ti.com .......................................................................................................................................................................................... SLVS991 – SEPTEMBER 2009
15-kHz PWM DIMMING WITH DUTY=10% 15-kHz PWM DIMMING WITH DUTY=10%
Figure 11. Figure 12.
PWM DIMMING LINEARITY PWM DIMMING LINEARITY
Figure 13. Figure 14.
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