Datasheet

50%
55%
60%
65%
70%
75%
80%
85%
90%
0 5 10 15 20
WLED current [mA]
E f fi ci en cy
4 LEDs
10 LEDs8 LEDs
6 LEDs
50%
55%
60%
65%
70%
75%
80%
85%
90%
0 5 10 15 20
WLED current [mA]
E f fi ci en cy
VBAT=2.8V VBAT=3.6V
VBAT=4.2V
0.001
0.01
0.1
1
0.1 1 10 100
Pulse Duty Cycle [%]
V F B [V ]
TPS65200
SLVSA48 APRIL 2010
www.ti.com
TYPICAL CHARACTERISTICS (continued)
T
A
= 25°C, unless otherwise specified.
EFFICIENCY EFFICIENCY
V
BAT
= 3.3 V 6 LEDs
Figure 40. Figure 41.
WLED DIMMING LINEARITY
V
BAT
= 3.8 V, F
PWM
= 5 kHz, 7 LEDs
Figure 42.
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