Integrated circuits including charging circuit and flash driver, methods of operating the integrated circuits, and electronic devices including the integrated circuits

Abstract

An integrated circuit (IC) includes circuitry configured to, drive a flash unit comprising at least one light-emitting device, by providing a supply voltage to the flash unit based on an external input power source or a battery, the supply voltage being provided along one of a plurality of different current paths corresponding to a plurality of operation states, no voltage being received from the external input power source in a first operation state among the plurality of operation states, a first voltage level being received from the external input power source in a second operation state among the plurality of operation states, and a second voltage level being received from the external input power source in a third operation state among the plurality of operation states, and charge the battery based on an charging voltage received from the external input power source.