ZHCSGD8A May 2017 – May 2018
PRODUCTION DATA.
The WQFN package has low thermal impedance, which provides good thermal conduction from the silicon to the ambient, to keep junction temperatures low. As added level of protection, the charger converter turns off for self-protection whenever the junction temperature exceeds the 155°C. The charger stays off until the junction temperature falls below 135°C. During thermal shut down, the LDO current limit is reduced to 16 mA and REGN LDO stays off. When the temperature falls below 135°C, charge can be resumed with soft start.