JAJSKU7C September 2022 – February 2024
PRODUCTION DATA
The host may place the BQ25620 and BQ25622 into ship mode by setting BATFET_CTRL = 10. In ship mode, the BATFET is turned off to prevent the battery from powering the system, and the I2C is disabled. Ship mode has slightly higher quiescent current than shutdown mode, but QON may be used to exit from ship mode. The BQ25620 and BQ25622 are taken out of ship mode by either of these methods:
When the BQ25620 and BQ25622 exit from ship mode, the registers are reset to their POR values.
Ship mode is only entered when the adapter is not present. Setting BATFET_CTRL = 10 while VVBUS > VVBUS_UVLOZ (adapter present) either disables the BATFET or has no immediate effect depending on the setting of BATFET_CTRL_WVBUS.
When BATFET_CTRL_WVBUS is set to 0 and VVBUS > VVBUS_UVLO (adapter present), setting BATFET_CTRL = 10 has no immediate effect. If the adapter is removed while BATFET_CTRL is set to 10, then the BATFET is disabled and the device enters ship mode. The BATFET turns off either after tBATFET_DLY or when the adapter is removed, whichever comes later.
When BATFET_CTRL_WVBUS is set to 1 and VVBUS > VVBUS_UVLO (adapter present), setting BATFET_CTRL = 10 turns off the BATFET after tBATFET_DLY. The converter continues to run while the adapter is present, supplying SYS power from the adapter. If the adapter is removed while BATFET_CTRL is set to 10, the BQ25620 and BQ25622 enters ship mode. Ship mode is entered either after tBATFET_DLY or when the adapter is removed, whichever comes later.