HV9911DB4

Supertex inc. HV9911DB4 High Brightness SEPIC LED Driver Demoboard with High Dimming Ratio and Excellent Current Regulation General Description The HV9911DB4 is an LED driver dempboard capable of driving one to six three-watt LEDs in series from an input of 9.0 - 16VDC. The demoboard uses Supertex’s HV9911 in a SEPIC topology to drive LED string voltages higher or lower than the input voltage. The converter has a very good initial regulation (+/-5%), and excellent line and load regulation over the entire input and output voltage range (