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LP85571 数据表(PDF) 9 Page - Texas Instruments

部件名 LP85571
功能描述  LP8557 High-Efficiency LED Backlight Driver For Tablets
PDF  49 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TI2 [Texas Instruments]
网页  https://www.ti.com
标志 TI2 - Texas Instruments

LP85571 数据表(HTML) 9 Page - Texas Instruments

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background image
80
82
84
86
88
90
0
20
40
60
80
100
Brightness [%]
1p9s
1p7s
1p5s
C001
80
82
84
86
88
90
0
20
40
60
80
100
Brightness [%]
1p8s
1p6s
1p4s
C001
80
82
84
86
88
90
0
20
40
60
80
100
Brightness [%]
2p8s
2p6s
2p4s
C001
80
82
84
86
88
90
0
20
40
60
80
100
Brightness [%]
2p9s
2p7s
2p5s
C001
80
82
84
86
88
90
0
20
40
60
80
100
Brightness [%]
3p9s
3p7s
3p5s
C001
80
82
84
86
88
90
0
20
40
60
80
100
Brightness [%]
3p8s
3p6s
3p4s
C001
LP8557, LP85571
www.ti.com
SNVSA15B – DECEMBER 2013 – REVISED DECEMBER 2015
Typical Characteristics (continued)
Unless otherwise specified: VIN = VDD = 3.8 V, L = 10 µH Cyntec PIME051E, D = Diodes PD3S130L-7, COUT = 2 × 4.7 µF,
LED Vƒ = 2.85 V (typical), ILED_MAX = 25 mA per string.
Figure 8. LED Efficiency With 3 LED Strings
Figure 9. LED Efficiency With 3 LED Strings
Figure 10. LED Efficiency With 2 LED Strings
Figure 11. LED Efficiency With 2 LED Strings
Figure 12. LED Efficiency With 1 LED String
Figure 13. LED Efficiency With 1 LED String
Copyright © 2013–2015, Texas Instruments Incorporated
Submit Documentation Feedback
9
Product Folder Links: LP8557 LP85571



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