The LP5526 is a Lighting Management Unit for portable applications. It is used to drive display backlights, keypad LEDs, RGB LEDs and camera flash LEDs. The LP5526 can drive 2 separately connected strings of LEDs with high voltage boost converter. The RGB driver allows driving either connector flash LEDs from high voltage boost converter.
The backlight drivers (MAIN and SUB pins) are both high resolution constant current mode drivers. The flash outputs can drive series connected flash LED with up to 150mA of current. External PVW c ontrol can be used for dimming any selected LED outputs or it can be used to trigger the flash. The flash has also 1-second safety timer.