Semiconductor integrated circuit, operating method thereof, and electronic device including the same

A wired charging method of a semiconductor integrated circuit, the semiconductor integrated circuit configured to support a wired charging mode, a wireless charging mode, and a magnetic secure transmission (MST) mode, the method comprising:

• setting the semiconductor integrated circuit to the wired charging mode;
• turning off a first switch and a second switch, turning on a third switch and turning on a fourth switch, the first switch and the second switch being connected in parallel to an intermediate node of a Wireless Recharge/MST device included in the semiconductor integrated circuit, the third switch being between the first switch and a ground, and the fourth switch being between the second switch and a ground;
• operating a linear charger, the linear charger being between the intermediate node and a battery;
• and
• turning on a recharge switch, the recharge switch being between an external power source and the intermediate node.

An electronic device comprising:

• a battery;
• a semiconductor integrated circuit connected to the battery, the semiconductor integrated circuit configured to support operations of a wired charging mode of the battery, a wireless charging mode of the battery, and a magnetic secure transmission (MST) mode;
• a transceiver connected to the semiconductor integrated circuit, the transceiver configured to assist the semiconductor integrated circuit in the wireless charging mode and the MST mode;
• and
• a controller configured to control the transceiver, the controller configured to,
• instruct, via control signals, the semiconductor integrated circuit to provide a current to the battery, if the semiconductor integrated circuit is operating in one of the wired charging mode and the wireless charging mode, and
• instruct the battery to provide the semiconductor integrated circuit with an MST current to generate a magnetic signal, if the semiconductor integrated circuit is operating in the MST mode.