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LP8556 데이터시트(PDF) 49 Page - Texas Instruments

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부품명 LP8556
상세설명  High-Efficiency LED Backlight Driver for Tablets
PDF  63 Pages
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

LP8556 데이터시트(HTML) 49 Page - Texas Instruments

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BRIGHTNESS [%]
PWM Dimming
Adaptive Dimming
VIN = 3.6V
10" Panel
6x7 LED Array
ILEDMAX = 23 mA/CH
L = 4.7 PH
1.5 mm Max Height
fSW = 1.25 MHz
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BRIGHTNESS [%]
PWM Dimming
Adaptive Dimming
VIN = 3.6V
10" Panel
6x7 LED Array
ILEDMAX = 23 mA/CH
L = 4.7 PH
1.5 mm Max Height
fSW = 1.25 MHz
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BRIGHTNESS [%]
LED Efficiency
Boost Efficiency
VIN = 8.6V
6x7 LED Array
ILEDMAX = 20 mA/CH
L = 10 PH
1.5 mm Max Height
fSW = 625 kHz
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BRIGHTNESS [%]
LED Efficiency
Boost Efficiency
VIN = 12.9V
6x7 LED Array
ILEDMAX = 20 mA/CH
L = 10 PH
1.5 mm Max Height
fSW = 625 kHz
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100
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85
95
BRIGHTNESS [%]
LED Efficiency
Boost Efficiency
VIN = 3.8V
6x7 LED Array
ILEDMAX = 20 mA/CH
L = 10 PH
1.5 mm Max Height
fSW = 625 kHz
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BRIGHTNESS [%]
LED Efficiency
Boost Efficiency
VIN = 6.3V
6x7 LED Array
ILEDMAX = 20 mA/CH
L = 10 PH
1.5 mm Max Height
fSW = 625 kHz
49
LP8556
www.ti.com
SNVS871I – JULY 2012 – REVISED MARCH 2016
Product Folder Links: LP8556
Submit Documentation Feedback
Copyright © 2012–2016, Texas Instruments Incorporated
9.2.3 Application Curves
Unless otherwise specified: VIN = 3.8 V, CVLDO = 10 μF, L1 = 4.7 μH, CIN = 2.2 μF, COUT = 4.7 μF, ƒSW = 1.25 MHz
Figure 20. Boost and LED Drive Efficiency
Figure 21. Boost and LED Drive Efficiency
Figure 22. Boost and LED Drive Efficiency
Figure 23. Boost and LED Drive Efficiency
Figure 24. Optical Efficiency
Figure 25. Luminance as a Function of Brightness



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