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LPD6803 datasheet
General Description: LPD6803 is a 3 channel constant-current driver and grey-level modulate output , it uses advanced high-voltage CMOS technology, provide 3-way, designed to meet the needs of driving function in the LED lighting system, especially in the dissociation with mutual grey level in the full-colour lighting system.. LPD6803 includes serial shift register and concatenation driver circuit, grey level data shift into serial shift register in the clock, and transfer saving , it transfer to interface 3 after pulse-width modulate ,then output, serial shift register and grey-level counter can be controlled by different clock signal. In the meantime, LPD6803 driver data signal and control signal , and output next circuit.