SCT2167

StarChips Technology SCT2167 V01_02; Jul/12 8-bit Serial-In/Parallel-Out Constant Current Driver Product Description The SCT2167 serial interfaced LED driver sinks 8 LED clusters with constant current to keep the uniform intensity of LED displays. In applications, an external resistor is used to set the full scale constant output current from 5mA up to 45mA. The SCT2167 guarantees each output can endure maximum 17V DC voltage stress. The built in shift registers and data latches making the SCT2167 effective solution in driving LED display. The output enable function gates all 8 outputs on and off, and is fast enough to be used as PWM input for LED intensity control. Since the serial data input rate can be reached up to 25MHz, the SCT2167 will satisfy system which needs high volume data transmission to control the LED Features 8 constant current sinkers with output voltage sustainable to 17V Constant output current : 5 – 30/[email protected]/5V Excellent regulation to load, supply voltage and temperature Temperature regulation: ±0.005%/°C load regulation: ±0.1%/V line regulation: ±0.5%/V High current matching accuracy: ±1% between outputs, ±2% between ICs Fine grayscale response with 180ns PWM pulse width Dropout voltage 0.5V@20mA, VDD=5V CMOS Schmitt trigger inputs with clock rate up to 25MHz @ cascade connection The constant current value of 8 outputs is set by a single external resistor Interlaced 30ns delay of output, preventing instant current surge and output bouncing overstre...