Datasheet

V
100mV/div, AC
O
Inductor
Current
1 A/div,DC
t-Time-2 s/divm
DCTRL
5V/div,DC
V
100mV/div, AC
bat
SW
20V/div,DC
V
100mV/div, AC
O
Inductor
Current
1 A/div,DC
t-Time-1 s/divm
Fault
5V/div,DC
V
20V/div,DC
O
Inductor
Current
1 A/div,DC
t-Time-1s/div
V
20V/div,DC
O
Inductor
Current
5 A/div,DC
Fault
5V/div,DC
t-Time-100 s/divm
V
10V/div,DC
O
Inductor
Current
1 A/div,DC
t-Time-10 s/divm
EN
5V/div,DC
WLED
Current
20mA/div,DC
TPS61181A
www.ti.com SLVSAN6A –FEBRUARY 2011– REVISED MARCH 2011
SWITCHING WAVEFORM OUTPUT RIPPLE AT PWM DIMMING C
O
=4.7μF
Figure 10. Figure 11.
OUTPUT SHORT PROTECTION OPEN WLED PROTECTION
Figure 12. Figure 13.
STARTUP WAVEFORM
Figure 14.
Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback 9
Product Folder Link(s): TPS61181A