BCT3256EGB-TR

August , 2012, REV2.1 BCT3256 6 Channel Constant Current LED Driver Low Dropout Current Sink General Description Features The BCT3256 is a high performance constant current white LED driver. The BCT3256 uses an internal resistor to set the bias current for 6 LEDs, which are matched to 3%. The BCT3256's advantages over ballast resistors include much lower bias variation with supply voltage variation, significantly lower dropout voltage, and in some applications, significantly improved efficiency. The BCT3256 requires only a 50mV dropout voltage at a 20mA load on each output to match the LED brightness. ♦ Low 50mV Dropout at 20mA ♦ 20mA full scale current ♦