SLUUDA0 April 2026 BQ27Z855
Power Save Shutdown is enabled when [PWR_SAVE_VSHUT] is set. The enters Power Save Shutdown when the lowest cell voltage is below PS Shutdown Voltage and:
NoLoadRemCap()<PS NoLoadResCapThreshold.
| Status | Condition | Action |
|---|---|---|
| Enable | cell voltage < PS Shutdown Voltage | OperationStatus()[PSSHUT] = 1 |
| Trip | cell voltage < PS Shutdown Voltage AND NoLoadRemCap()<PS No Load Res Cap AND RSOC = 0% AND the [REST] bit must be set. | Turn DSG FET off |
| Shutdown | Voltage at PACK pin < Charger Present Threshold | Send device into SHUTDOWN mode. |
| Exit | Voltage at PACK pin > VSTARTUP | OperationStatus()[PSSHUT] = 0 Return to NORMAL mode |