SLUUDA0 April 2026 BQ27Z855
In SHUTDOWN mode, the device turns off the FETs after FET Off Time, and then shuts down to minimize power consumption after Delay time. FET Off Time and Delay time are referenced to the time the gauge receives the command. Thus, the Delay time must be set longer than FET Off Time. The device returns to NORMAL mode when the voltage at the PACK pin > VSTARTUP or the ENAB pin is pulled low. The device can be sent to this mode with the ManufacturerAccess() Shutdown command. Charger voltage must not be present and the ENAB pin must be high for the device to enter SHUTDOWN mode.
If the gauge is sealed and the MAC Shutdown() command is sent twice in a row, the gauge will execute the shutdown sequence with a delay determined by Power: Ship: Delay dataflash value.