RT8474 PDF 데이터시트 검색

® RT8474 High Voltage Multiple-Topology LED Driver with Dimming Control General Description The RT8474 is a current-mode LED driver supporting wide input voltage range from 4.5V to 50V and output voltage up to 50V. With internal 500kH- operating frequency, the size of the external PWM inductor and input, output capacitors can be minimized. High efficiency is achieved by a 100mV current sensing control. LED dimming control can be done from either analog or PWM signal. The RT8474 provides an in