MY9268

Preliminary MY9268 MY-Semi 16-Channel High Accuracy Constant Current LED Driver With 16bits Multiplex-PDM Control for Dynamic Scanning Systems General Description The MY9268, 16-channel c o n s t a n t c u r r e n t LED driver with 16bits grayscale M-PDM (Multiplex Pulse Density Modulation) control, supports dynamic 1/2, 1/4, 1/8 scanning applications. The distinctive M-PDM technology enhances the refresh rate of dynamic scanning systems without increasing the frequency of grayscale clock in order to prevent from EMI interference. And the technique of automatic black frame insertion could abate efficiently the influence of blurs caused by the scanning switch. The device operates over a 3V to 5.5V input voltage range and provides 1 6 open-drain constant current sinking outputs that are rated to 1 7 V and delivers up to 70mA of high accuracy current to each string of LED. The current at each output is programmable by means of an external current-sensing resistor and could be adjusted...