TPS61196
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SLVSBG1C –OCTOBER 2012–REVISED FEBRUARY 2013
STARTUP WAVEFORM (1% DIMMING)
STARTUP WAVEFORM (100% DIMMING)
EN
EN
5 V/div
5 V/div
IFB1
IFB1
5 V/div
10 V/div
V
V
OUT
OUT
20 V/div
20 V/div
I
I
IN
IN
1 A/div
1 A/div
40 ms/div
40 ms/div
G008
G009
Figure 10.
Figure 11.
DIMMING WAVEFORM (0.1% DIMMING)
DIMMING WAVEFORM (2% DIMMING)
SW
50 V/div
SW
50 V/div
IFB1
10 V/div
IFB1
10 V/div
V
(AC)
V
(AC)
OUT
OUT
200 mV/div
200 mV/div
ILED
100 mA/div
ILED
100 mA/div
10 µs/div
20 µs/div
G010
G011
Figure 12.
Figure 13.
SHUTDOWN WAVEFORM (1% DIMMING)
SHUTDOWN WAVEFORM (100% DIMMING)
EN
EN
5 V/div
5 V/div
IFB1
IFB1
10 V/div
10 V/div
V
V
OUT
OUT
20 V/div
20 V/div
ILED
ILED
100 mA/div
100 mA/div
2 s/div
2 s/div
G012
G013
Figure 14.
Figure 15.
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