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FAN5614

更新时间： 2024-09-26 22:50:59
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 驱动器
页数 文件大小 规格书
12页 168K
描述
Low-Dropout LED Drivers for White, Blue or any Color LED

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中文翻译

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FAN5614 数据手册

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www.fairchildsemi.com  
FAN5611/FAN5612/FAN5613/FAN5614  
Low-Dropout LED Drivers for White, Blue or any  
Color LED  
Features  
General Description  
• LED Drivers for parallel-connected LEDs  
• Ultra-low voltage drop (< 300mV) to support direct  
Li-ion applications  
The FAN5611/FAN5612/FAN5613/FAN5614 driver family  
provides matched current source bias for white, blue or any  
color LEDs. The current in the LEDs can be programmed by  
an external resistor. The individual LED currents are 200 x  
ISET, where ISET is the current through the external resistor  
connected to the CTRL pin. The FAN5611 and the FAN5613  
are capable of driving four LEDs, while the FAN5612 can  
drive three LEDs. The FAN5614 is designated to drive two  
high current LEDs. In any case, at least I1 should be always  
connected to an LED in order to have the other LEDs driven  
with a matched current to I1.  
• No EMI, no switching noise  
• No external components needed for current matching  
• Both analog and PWM brightness control  
• FAN5611, FAN5613 feature up to 160mA bias current  
(up to 40mA for each LED)  
• FAN5612 features up to 120mA bias current (up to 40mA  
for each LED)  
• FAN5614 features up to 160mA bias current (up to 80mA  
for each LED)  
• Enable/Shutdown control (FAN5612, FAN5613,  
FAN5614)  
• Shutdown current < 1µA  
• Small footprint SC-70 and 2x2 MLP  
The FAN5612, FAN5613 and FAN5614 have Enable pin.  
When these devices are disabled, the supply current drops to  
less than 1µA.  
The FAN5611, FAN5612 and FAN5614 drivers are available  
in a 6-lead SC-70 package. The FAN5613 is available in an  
8-lead MLP package.  
Applications  
• Cell Phones  
• PDA, DSC, MP3 Players  
• Handheld Computers  
• LCD Display Modules  
• Keyboard Backlight  
• LED Displays  
Typical Applications  
V
IN  
V
V
IN  
IN  
I
SET  
I3  
I2  
I4  
I3  
I2  
I1  
I3  
I2  
I4  
CTRL  
I1  
I1  
V
(3V)  
I
CONTROL  
I
SET  
SET  
V
(3V)  
V
(3V)  
CONTROL  
CONTROL  
R
SET  
CTRL  
CTRL  
FAN5612  
FAN5611  
GND  
FAN5613  
GND  
R
SET  
R
SET  
ON/OFF  
ENABLE  
ON/OFF  
ENABLE  
GND  
Four Diode Control With ON/OFF  
Four Diode Control  
Three Diode Control with ON/OFF  
V
IN  
I1/I2  
I3/I4  
I
SET  
V
(3V)  
CONTROL  
CTRL  
FAN5614  
R
SET  
ON/OFF  
BLE  
ENA  
GND  
Two Diode Control with ON/OFF  
REV. 1.0.4 6/4/04  
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