SLUSD37E October 2017 – November 2019 UCC28056
The controller includes an internal temperature sensor. During the switching period, the controller triggers a Thermal ShutDown (TSD) fault if the internal silicon temperature exceeds TTSDRise for three consecutive switching cycles. The TSD fault halts switching operation and causes the controller to transition to its Stopb state for a period TLongFlt. After this delay the controller continues the normal start-up process.
The controller does not exit the Stopb state to begin switching operation while the internal silicon temperature is above TTSDFall.