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TPS61043 Datasheet(PDF) 6 Page - Texas Instruments

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Part # TPS61043
Description  CONSTANT CURRENT LED DRIVER
PDF  21 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS61043 Datasheet(HTML) 6 Page - Texas Instruments

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TYPICAL CHARACTERISTICS
VI - Input Voltage - V
IO = 15 mA
70
72
74
76
78
80
82
84
86
88
90
1.8
2.8
3.8
4.8
5.8
4 LEDs
≈ 13 V, CO = 1 µF
70
72
74
76
78
80
82
84
86
88
90
0.1
1
10
100
IO - Output Current - mA
VI = 4.2 V
VI = 3.6 V
VI = 2.4 V
4 LEDs
≈ 13 V, CO = 1 µF
TPS61043
SLVS465A – DECEMBER 2003 – REVISED DECEMBER 2003
Table of Graphs
FIGURE
η
Efficiency
vs LED current
Figure 2
vs Input voltage
Figure 3
IQ
Operating Quiescent Current into VIN
vs Input voltage and Temperature
Figure 4
V(FB)
Feedback voltage
vs Temperature
Figure 5
I(FB)
Feedback current
vs Temperature
Figure 6
rds(on)
Main switch Q1
vs Temperature
Figure 7
vs Input voltage
Figure 8
LED switch Q2
vs Temperature
Figure 9
vs Input voltage
Figure 10
ILED
Average LED current
vs PWM duty cycle on CTRL pin
Figure 11
Soft start
Figure 12
PFM operation (fixed peak current control)
Figure 13
Burst mode operation (fixed peak current
Figure 14
control)
PWM dimming
Figure 15
Efficiency
Efficiency
vs
vs
LED Current
Input Voltage
Figure 2.
Figure 3.
6


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