公开(公告)号：US20240283261A1

公开(公告)日：2024-08-22

申请号：US18459957

申请日：2023-09-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngwoo CHUNG ,  Daeyong HAN

IPC: H02J7/00 ,  G01R31/52

CPC classification number: H02J7/0029 ,  G01R31/52 ,  H02J7/0047 ,  H02J7/00712

Abstract: A charger integrated circuit includes a plurality of power transistors configured to transmit one of a battery voltage, a charging voltage, and a load voltage as an internal power supply voltage based on a voltage selection control signal, a voltage selector configured to, determine a highest voltage among a battery voltage, a charging voltage, and a load voltage, and transmit the voltage selection control signal to the plurality of power transistors based on results of the determination, a short current limiter configured to, output the internal power supply voltage as a chip voltage, and limit a level of a short circuit current corresponding to the chip voltage in response to a current control signal, and a power drop sensor configured to generate the current control signal in response to a voltage level of the chip voltage being lower than a voltage level of a reference voltage.