ZHCSNX8B December 2020 – September 2023 TPS6593-Q1
PRODUCTION DATA
The watchdog monitors the correct operation of the MCU. This watchdog requires specific messages from the MCU in specific time intervals to detect correct operation of the MCU. The MCU can control the logic-level of the EN_DRV pin when the watchdog detects correct operation of the MCU. When the watchdog detects an incorrect operation of the MCU, the TPS6593-Q1 device pulls the EN_DRV pin low. This EN_DRV pin can be used in the application as a control-signal to deactivate the power output stages, for example a motor driver, in case of incorrect operation of the MCU.
The watchdog has two different modes that are defined as follows: