The MAX16826 can be used to drive four LED strings at up to 100V per string, which limits the number of LEDs that can be used in series (typically 32 LEDs per string).
This part is best suited for lighting up a large area evenly, such as Backlighting for LCD panels, due to the large number of LEDs that can be driven.
The maximum output current is dependent on the external power components used, equations in the datasheet can be followed to aid this design process.