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LP85571 데이터시트(PDF) 37 Page - Texas Instruments

부품명 LP85571
상세설명  LP8557 High-Efficiency LED Backlight Driver For Tablets
PDF  49 Pages
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제조업체  TI2 [Texas Instruments]
홈페이지  https://www.ti.com
Logo TI2 - Texas Instruments

LP85571 데이터시트(HTML) 37 Page - Texas Instruments

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VIN
LP8557I
FB
SW
1.1 ” 9OUT / VIN ” 11
L1
D1
VDD
CIN
COUT
LED1
LED2
LED3
LED4
LED5
LED6
GNDs
SCL
SDA
2.7 V ± 5.5 V
7 V ± 28 V
PWM
PWM
VOUT
SDA
SCL
VIN = 200 mV/div
ILED = 1 A/div
IIN = 1 A/div
VTX = 5 V/div
ms/DIV
VDD
5V/DIV
ILED
20mA/DIV
10V/DIV
VBOOST
VPWM
5V/DIV
VIN = 200 mV/div
ILED = 1 A/div
IIN = 1 A/div
VTX = 5 V/div
4ms/DIV
VDD
5V/DIV
ILED
20mA/DIV
10V/DIV
VBOOST
VPWM
5V/DIV
LP8557, LP85571
www.ti.com
SNVSA15B – DECEMBER 2013 – REVISED DECEMBER 2015
Figure 46. Shutdown Operation
Figure 45. Start-Up With a 100% Input PWM Duty
9.2.2 LP8557I PWM and I2C Device Option
Figure 47. Typical Application With LP8557I PWM and I2C Device Option
9.2.2.1 Design Requirements
See Design Requirements.
9.2.2.2 Detailed Design Procedure
See Detailed Design Procedure.
9.2.2.3 Application Curves
See Application Curves.
Copyright © 2013–2015, Texas Instruments Incorporated
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Product Folder Links: LP8557 LP85571



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