This high voltage white LED driver electronic circuit schematic is
based on the NCP5021 IC manufactured by On Semiconductor . This NCP5021
high voltage white LED driver electronic circuit is designed with
ambient light sensing feature . The NCP5021 white LED driver is capable
of driving up to 8 LEDs in series for portable backlight applications. The built−in DC DC converter is based on a high efficient PWM boost structure with 32 V output voltage span. The schematic circuit is very simple , requiring few external
electronic parts and it can be connected through an I2C protocol to
another device or microcontroller .
High Voltage White LED Driver Circuit diagram
Main features of the NCP5021 high voltage LED driver are : 2.7 to 5.5 V Input Voltage Range , 90% Peak efficiency with 4.7 _H / 150 m_ Inductor , Gradual Dimming Built−in (Automatic Fade In/Fade Out Effect) , Integrated Ambient Light Sensing Automatically Adjusts the LCD , Backlight Contrast , Support the Full I2C Protocol with Address Extension . NCP5021 is a high voltage LED driver is specially designed for backlight driver in applications like : Cellular Phone, Smartphone , Portable Media Player (PMP) , Global Positioning System (GPS) .
The circuit application for the NCP5021 require just few external components as you can see in the circuit application from the schematic.
High Voltage White LED Driver Circuit diagram
Main features of the NCP5021 high voltage LED driver are : 2.7 to 5.5 V Input Voltage Range , 90% Peak efficiency with 4.7 _H / 150 m_ Inductor , Gradual Dimming Built−in (Automatic Fade In/Fade Out Effect) , Integrated Ambient Light Sensing Automatically Adjusts the LCD , Backlight Contrast , Support the Full I2C Protocol with Address Extension . NCP5021 is a high voltage LED driver is specially designed for backlight driver in applications like : Cellular Phone, Smartphone , Portable Media Player (PMP) , Global Positioning System (GPS) .
The circuit application for the NCP5021 require just few external components as you can see in the circuit application from the schematic.
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