Datasheet

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700
800
900
1000
1100
1200
0 10 20 30 40 50
WLEDCurrent-mA
V =3.6V
WLED1Voltage=15V
WLED2Voltage=15V
I
KValue
WLED1
WLED2
50
60
70
80
90
0 10 20 30 40
60
50
I -TotalOutputCurrent-mA
O
Efficiency-%
WLED1Voltage=15V
WLED2Voltage=15V
V =3.3V
I
V =4.2V
I
V =3.6V
I
ISEL2
5V/div ,DC
WLEDCurrent
20mA/div,DC
IOUT
1V/div ,DC
15VOffset
SW
10V/div ,DC
t-Time-20 s/divm
0
5
10
15
20
25
0
20 40 60
80 100
PWMDutycycle-%
WLEDcurrent-mA
f=20kHz
f=30kHz
TPS61150A
SLVS706 – OCTOBER 2006
BOTH ON EFFICIENCY K VALUE
vs vs
TOTAL OUTPUT CURRENT WLED CURRENT
Figure 7. Figure 8.
SINGLE OUTPUT WLED PWM
WLED BRIGHTNESS DIMMING LINEARITY BRIGHTNESS DIMMING
Figure 9. Figure 10.
8
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