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Low-Dropout High-Power LED Driver
Product Profile
     Application Note
General Description:
The CN5611 current regulator operates from a 2.7V to 6V input voltage range and delivers a constant current that is
up to 800mA to high-brightness LEDs, including high-brightness white LED. The LED current of CN5611 can be
adjusted from 30mA to 800mA by using an external resistor. An on-chip pass element minimizes external
components while providing ±8% output current accuracy. Additional features include over temperature protection,
LED short and open protection.
The CN5611 is available in a thermally enhanced 5-pin SOT89 package.
pdf/Sample Application Form.doc LED Cap-Lamp
Flash Light and Lighting Cell phones, DSC and MP3 Player
LCD and Keyboard Backlight
Operating Supply Voltage Range: 2.7V to 6V
On-chip Pass Element
Low-Dropout Voltage
Adjustable Output Current up to 800mA
Output Current Accuracy: ±8%
Over Temperature Protection
LED Open/Short Protection
Operating Temperature Range: -40℃ to 85℃
Available in 5-pin SOT89 Packages
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