ZHCSJZ6D June 2019 – December 2021 BQ25618 , BQ25619
PRODUCTION DATA
In some applications, the host does not always monitor charger operation. The INT pulse notifies the host on device operation. The following events generate a 256-μs INT pulse.
REG09[7:0] and REG0A[6:4] report charger operation faults and status change to the host. When a fault/status change occurs, the charger sends out an INT pulse and keeps the state in REG09[7:0]/REG0A[6:4] until the host reads the registers. Before the host reads REG09[7:0]/REG0A[6:4] and all the ones are cleared, the charger does not send any INT upon new fault/status change. To read the current status, the host has to read REG09/REG0A two times consecutively. The first read reports the pre-existing register status and the second read reports the current register status.