ZHCSG01C February 2017 – August 2018 DRV8320 , DRV8320R , DRV8323 , DRV8323R
PRODUCTION DATA.
If the die temperature exceeds the trip point of the thermal shutdown limit (TOTSD), all the external MOSFETs are disabled, the charge pump is shut down, and the nFAULT pin is driven low. In addition, the FAULT and TSD bits are latched high. Normal operation starts again (gate driver operation and the nFAULT pin is released) when the overtemperature condition clears. The TSD bit stays latched high indicating that a thermal event occurred until a clear fault command is issued either through the CLR_FLT bit or an ENABLE reset pulse (tRST). This protection feature cannot be disabled.