ZHCSJM6A April 2019 – October 2019 TAS6421-Q1
PRODUCTION DATA.
Four overtemperature warning levels are available in the device (see the Register Maps section for thresholds). When the junction temperature exceeds the warning level, the WARN pin is asserted, unless the mask bit has been set to disable reporting. The device functions until the OTSD value is reached, at which point the channels are placed in the Hi-Z state and the FAULT pin is asserted. By default, the device remains shut down after the temperature drops to normal levels. This configuration can be changed in bit 3 of the Miscellaneous Control 3 Register (address = 0x21) [default = 0x00] to auto-recovery: When the junction temperature returns to normal levels, the device automatically recovers and places the channel into the state indicated by the state control register. Note that even in auto-recovery configuration the FAULT pin remains asserted until the CLEAR FAULT bit (bit 7) is set in register 0x21.