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LP55281TL/NOPB bảng dữ liệu(PDF) 31 Page - Texas Instruments

tên linh kiện LP55281TL/NOPB
Giải thích chi tiết về linh kiện  LP55281 12-Channel RGB/White-LED Drive With SPI, I2C Interface
PDF  42 Pages
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nhà sản xuất  TI2 [Texas Instruments]
Trang chủ  https://www.ti.com
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LP55281TL/NOPB bảng dữ liệu(HTML) 31 Page - Texas Instruments

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background image
MCU
R3
G3
B3
R4
G4
B4
IRGB
IRT
ASE2
AUDIO
INPUTS
LP55281
SW
BATTERY
FB
VDDA
VREF
D1
VDD2
VDD1
GNDs
SCK/SCL
SI/A0
SS/SDA
SO
IF_SEL
VDDIO
RGB3
RGB4
RRT
RRGB
COUT
10 P
F
IMAX = 300...400 mA
VOUT = 4...5.3V
CVDD
100 nF
Lboost
CIN
10 P
F
CVDDA
1 é
F
CREF
100 nF
CVDDIO
100 nF
ALED
RGB1
RGB2
R1
G1
B1
R2
G2
B2
ASE1
4.7 P
H
Copyright © 2016, Texas Instruments Incorporated
NRST
31
LP55281
www.ti.com
SNVS458D – JUNE 2007 – REVISED OCTOBER 2016
Product Folder Links: LP55281
Submit Documentation Feedback
Copyright © 2007–2016, Texas Instruments Incorporated
8 Application and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
The LP55281 quadruple RGB driver with integrated boost converter provides a complete solution for driving up to
12 LEDs via either I2C or SPI interface.
8.2 Typical Application
Figure 26. LP55281 Typical Application



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