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LP8556 数据表(PDF) 52 Page - Texas Instruments

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部件名 LP8556
功能描述  High-Efficiency LED Backlight Driver for Tablets
PDF  63 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

LP8556 数据表(HTML) 52 Page - Texas Instruments

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background image
L1
D1
CIN
COUT
CVLDO
FSET
ISET
CVDD
SW
SW
VDD
VLDO
LED6
GND
SW
GND
SW
VBOOST
ISET
LED5
SDA
PWM
FSET
GND
LED4
SCL
EN
VDDIO
LED3
LED2
LED1
52
LP8556
SNVS871I – JULY 2012 – REVISED MARCH 2016
www.ti.com
Product Folder Links: LP8556
Submit Documentation Feedback
Copyright © 2012–2016, Texas Instruments Incorporated
Layout Guidelines (continued)
–
Approximately equal to the inductor current ripple when the resonant frequency occurs well above the
LP8556 switching frequency.
–
Greater than the inductor current ripple when the resonant frequency occurs near the switching
frequency.
–
Less than the inductor current ripple when the resonant frequency occurs well below the switching
frequency.
11.2 Layout Examples
Figure 28. DSBGA Layout



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