ZHCSL05C October 2019 – October 2023 TPS65313-Q1
PRODUCTION DATA
While the device is in any of the powered states (DIAGNOSTICS, ACTIVE, or SAFE), and if any global RESET state condition occurs, then the device goes into the RESET state. The NRES and ENDRV/nIRQ outputs are then driven low while all switched-mode regulators stay enabled. When the RESET state condition no longer exists, the device starts the NRES extension.
During an NRES extension, the device runs the ABIST and then the LBIST, unless the AUTO_BIST_DIS bit in the DEV_STAT1 configuration register is set. If any BIST fails, the device goes into the SAFE state after the NRES extension time elapses. The system MCU selects how to continue in the SAFE state.
The over temperature monitoring stays enabled even after the respective regulator is turned off and it is only disabled when the device is in the OFF state. If the BUCK1 regulator is disabled when the device goes into the RESET state, the regulator is enabled again (while device is in the RESET state) only if the BUCK1 junction temperature drops below its warning threshold level (TWARN_TH_F). If the BUCK1 junction temperature does not drop to less than its warning threshold level (TWARN_TH_F) and the RESET state time-out occurs, the device goes into the OFF state and the RESET state time-out flag is latched in the Analog_Latch.
When the device goes into the RESET state from one of three operating states, all control registers and some of the configuration registers set by the MCU in the DIAGNOSTIC state are initialized to their default values. For more information, see Section 11.16.1.1.