104990028

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. 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. ◇ Footprint: 1 LPD6803 datasheet LPD6803 Foot footprint function description description:: Name 1 DIN 2 GMODE 3 OMODE 13 CMODE 4 DCLK 5,7,11 OUT1,OUT2,OUT3 6,8,10 FB1,FB2,FB3 15 DOUT 12 DCLK0 16 VCC 14 VOUT 9 GND Function Serial data input, built-in voltage pullup Grey-level regulate mode: GMODE=1,adapt line modulate,GMODE=0,adapt re-Gama 256 grade non-line regulate,built-in voltage pull-up Control output polarity: OMODE=1, output is in-constant current/voltage drive mode,CMODE=0, output is out drive mode,voltage built-in pull-up choose inside grey clock GCLK, CMODE=0, GCLK=DCLK, CMODE=1, GCLK= inside oscillator output, built-in pull-up Serial data clock input, built-in pull-up 3-way driver output Feedback input in constant current state Serial data output, after inside strongly drive Serial clock output, after inside pll and strongly drive LDO power, range is 4.5v---8v when VCC>5V, 5V stable voltage output, when VCC10 THOLD >5 PD Inside 4 Range Unit