ZHCSM96A November 2020 – August 2021 TPS6521835
PRODUCTION DATA
This is the typical mode of operation when the system is up and running. All DCDC converters, LDOs, and load switches are operational and can be controlled through the I2C interface. After a wake-up event, the PMIC enables all rails controlled by the sequencer and pulls the nWAKEUP pin low to signal the event to the host processor. The device only enters the ACTIVE state if the host asserts the PWR_EN pin within 20 s after the wake-up event. Otherwise it will enter the OFF state. The nWAKEUP pin returns to HiZ mode after the PWR_EN pin is asserted. The ACTIVE state can also be directly entered from the SUSPEND state by pulling the PWR_EN pin high. See the SUSPEND state description for details. To exit the ACTIVE mode, the PWR_EN pin must be pulled low.