General Description
The multi-level brightness control white LED driver not only ensures efficient boost by automatically changing the boost rate but also works as a constant current driver in 64 steps, so that the driving current can be adjusted finely. This IC is best suited to turn on white LEDs that require high-accuracy LED brightness control.

FEATUREs
◾ Built-in parallel LED driver for 4 lamps.
◾ 64-step LED current adjusts function.
◾ Inter-LED relative current accuracy: 3% or less
◾ Lighting/dimming control via a single-line digital
   control interface.
◾ Automatic transition charge pump type DC/DC
   converter (×1,×1.5 and ×2).
◾ High efficiency achieved (90% or more at
   maximum).
◾ Various protection functions such as output voltage
   protection, over current limiter and thermal shutdown
   circuit are mounted.

APPLICATIONs
   This driver is applicable for various fields such as
   mobile phones, portable game machines and white
   goods.