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NCP5608
Multiple LED Charge Pump
Driver
The NCP5608 is a high efficiency boost converter operating in
current loop, based on a charge pump multi mode, to drive White
LED. The current mode regulation allows a uniform and
programmable brightness of the LEDs. The chip has been optimized
for small ceramic capacitors, capable to supply up to 2.0 W output
power.
Features
http://onsemi.com
MARKING
DIAGRAM
24
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2.7 to 5.5 V Input Voltage Range
Up to 500 mA Output Current
Capable to Drive 8 LED
Multi Mode Charge Pump Based Converter
I2C Serial Link Protocol
Consistent High Efficiency
Independently Block Programmable Output Currents
Programmable 3 or 4 Operating Backlight LED at Zero Extra
24 PIN TQFN (4x4)
MT SUFFIX
CASE 511AA
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb?Free Package
1
NCP
5608
ALYW
G
Losses
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Constant Output Current Regulation
Built?in Dimming Function
Tight Automatic LED Current Matching
Thermal Shutdown Protection
Low Battery Return Noise
This is a Pb?Free Device*
AGND 1
IREFFL 2
PIN CONNECTIONS
24 23 22 21 20
19
18 V OUT
17 C1P
Typical Applications
? LED Display Back Light Control
? Keyboard Back Light
? High Power Photo Flash
? Multiple Displays
IREFBK 3
SDA 4
SCL 5
CCMP 6
16 C1N
15 LED8
14 LED7
13 PGND
7
8
9
10
11
12
ORDERING INFORMATION
Device
NCP5608MTR2G
Package
TQFN24
Shipping ?
4000 / Tape & Reel
(Pb?Free)
?For information on tape and reel specifications,
including part orientation and tape sizes, please
*For additional information on our Pb?Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques Reference
Manual, SOLDERRM/D.
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
? Semiconductor Components Industries, LLC, 2006
June, 2006 ? Rev. 1
1
Publication Order Number:
NCP5608/D
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NCP5612MUTBG 功能描述:LED照明驱动器 WHITE LED DRIVER- 2LED-SW RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
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NCP561SN15T1G 功能描述:低压差稳压器 - LDO 1.5V 150mA CMOS w/Enable RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20