ZHCSI10E September 2009 – September 2018 TPS54218
PRODUCTION DATA.
The device implements an internal thermal shutdown to protect itself if the junction temperature exceeds 175°C. The thermal shutdown forces the device to stop switching when the junction temperature exceeds the thermal trip threshold. Once the die temperature decreases below 160°C, the device reinitiates the power up sequence by discharging the SS pin to 0 volts. The thermal shutdown hysteresis is 15°C.