LED driver 3 outputs 45 mA constant current, PWM regulation 256 gray levels, control 2-wire SPI

Download datasheet: LPD6803

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.

Features:
◇ 3channel driver output, maxim current per channel is 45mA, LED light voltage can
reach 12V.
◇ Output adopt In-Rush online feedback contant-current driver structure, compatible with
constant-voltage module, it also can contact outside equipment and transfer to higher voltage
or current output driver.
◇ Built-In LDO voltage-stabilizing circuit, voltage range is 3-8v, and have 5V stabilizing
voltage output.
◇ Adopt self-add token-ring technology dual shift line, shift clock can reah 24MHz.
◇ Directly input grey-level data, it is transfer to 256 output with reverse-gamma
regulator after inside SUPER-PWM technology, e.g, adopt built-in oscialator as greylevel clock, it support FREE-RUN module output, especially can be used in low-cost
controller.
◇ Data clock signal is drived strongly to next chip to enhance level after built-in phaselock circuit.
◇ High-voltage CMOS technology, industrial design, with extra-good interference
immunity
◇ With SOP16/QFN16 Pb-Free package, meet the requirement of Rohs , also can provide COB
package or DIE.