The NCP1840 LED driver allows for fullprogrammability of 8 separate LED channels through asimple I2C serial communication interface. Programming isconveniently done by writing to internal registers via theserial interface. In addition to being able to write to theregisters, the NCP1840 also allows these registers to be read.The constant current output and PWM duty cycle of eachchannel is determined by the value programmed into theassociated register.
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