US 12,105,661 B2
Electronic device including a plurality of power management integrated circuits and method of operating the same
Minshik Seok, Hwaseong-si (KR); Siyoung Ok, Gwangmyeong-si (KR); Jaekyu Jang, Hwaseong-si (KR); Seungjae Lee, Suwon-si (KR); Younghoon Lee, Seoul (KR); Jeehye Lee, Seongnam-si (KR); and Sangjoo Jun, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jun. 17, 2022, as Appl. No. 17/843,245.
Claims priority of application No. 10-2021-0094481 (KR), filed on Jul. 19, 2021.
Prior Publication US 2023/0019075 A1, Jan. 19, 2023
Int. Cl. G06F 13/42 (2006.01); G06F 1/30 (2006.01); G06F 9/4401 (2018.01)
CPC G06F 13/4208 (2013.01) [G06F 1/30 (2013.01); G06F 9/4405 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a first power management integrated circuit (PMIC) comprising a first fault controller connected to a first node, and a first interface circuit connected to a second node;
a second PMIC comprising a second fault controller connected to the first node, and a second interface circuit connected to the second node; and
a third PMIC comprising a third fault controller connected to the first node, and a third interface circuit connected to the second node,
wherein the first fault controller is configured to, during a power on sequence or a power off sequence, detect a change in a voltage level of the first node, and the first interface circuit is configured to communicate with any one or any combination of the second interface circuit and the third interface circuit based on the change in the voltage level of the first node.