A single inductor LED driver for 60 LEDs that reduces the cost and complexity of medium LCD display LED backlights is described.
LCD display backlight
One inductor, one IC, one string of LEDs. This is the conventional way to build a boost LED driver for LCD display backlights. Although this is a perfectly acceptable solution for small LCD displays that only require a few strings, in larger displays the number of control ICs and inductors multiplies quickly, as do the expense and PCB real estate requirements. This is a major hurdle in the race to replace CCFLs ...