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TPS61181A Datasheet(PDF) 7 Page - Texas Instruments

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Part # TPS61181A
Description  WLED DRIVER FOR NOTEBOOK DISPLAY
Download  28 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS61181A Datasheet(HTML) 7 Page - Texas Instruments

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background image
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100
PWM Dimming Duty Cycle - %
50
55
60
65
70
75
80
85
90
95
100
V
= 19 V
BAT
V
= 10.8 V
BAT
V
= 5 V
BAT
V
= 25.5 V - TPS61181A,
ISET = 20 A,
Dimming Frequency = 1 kHz
O
m
50
55
60
65
70
75
80
85
90
95
100
0
10
20
30
40
50
60
70
80
90
100
PWM Dimming Duty Cycle - %
V
= 28.6 V - TPS61181A,
ISET = 20 A,
Dimming Frequency = 1 kHz
O
m
V
= 19 V
BAT
V
= 10.8 V
BAT
V
= 5 V
BAT
50
55
60
65
70
75
80
85
90
95
100
0
10
20
30
40
50
60
70
80
90
100
PWM Dimming Duty Cycle - %
V
= 19 V
BAT
V
= 10.8 V
BAT
V
= 5 V
BAT
V
= 31.7 V - TPS61181A,
ISET = 20 A,
Dimming Frequency = 1 kHz
O
m
50
55
60
65
70
75
80
85
90
95
100
0
10
20
30
40
50
60
70
80
90
100
PWM Dimming Duty Cycle - %
V
= 34.8 V - TPS61181A,
ISET = 20 A,
Dimming Frequency = 1 kHz
O
m
V
= 10.8 V
BAT
V
= 5 V
BAT
V
= 19 V
BAT
TPS61181A
www.ti.com
SLVSAN6A
– FEBRUARY 2011 – REVISED MARCH 2011
EFFICIENCY
EFFICIENCY
vs
vs
DIMMING DUTY CYCLE
DIMMING DUTY CYCLE
Figure 3.
Figure 4.
EFFICIENCY
EFFICIENCY
vs
vs
DIMMING DUTY CYCLE
DIMMING DUTY CYCLE
Figure 5.
Figure 6.
Copyright
© 2011, Texas Instruments Incorporated
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