TPS389006-Q1 device option comes preprogrammed with default values for over voltage, under voltage, expected sequences on power up and down. Please follow the design requirements outlined below.
- NIRQ pin requires a pull up resistor in the range of 10 kΩ to 100 kΩ.
- SDA and SCL lines require pull up resistors in the range of 10 kΩ.
- The ACT pin is driven by an external safety microcontroller. When the ACT pin is driven high, the device enters into ACTIVE mode. When the ACT pin is driven low, the device enters into SLEEP mode.
- The safety microcontroller is used to clear fault interrupts reported through the NIRQ interrupt pin and the INT_SCR1 and INT_SCR2 registers. The interrupt flags can only be cleared by the host micrcontroller with a write-1-to-clear operation; interrupt flags are not automatically cleared if the fault condition is no longer present.