SLUSDL9A June 2019 – January 2021 BQ25125
During the charging process, to prevent overheating in the device, the junction temperature of the die, TJ, is monitored. When TJ reaches T(SHUTDOWN) the device stops charging, disables the PMID output, disables the SYS output, and disables the LS/LDO output. During the time that T(SHUTDOWN) is exceeded, the safety timer is reset. The charge cycle resumes when TJ falls below T(SHUTDOWN) by T(HYS).
To avoid reaching thermal shutdown, ensure that the system power dissipation is under the limits of the device. The power dissipated by the device can be calculated using Equation 5.