SLUUC54C February 2020 – March 2024 BQ27Z558 , BQ27Z561 , BQ27Z561-R2
When the sleep conditions are met, the device goes into SLEEP mode with periodic wake-ups to reduce power consumption. The device returns to NORMAL mode if any exit sleep condition is met.
| Status | Condition | Action |
|---|---|---|
| Activate | DA Config[SLEEP] = 1 AND |Current()| ≤ Sleep Current AND Voltage Time > 0 AND OperationStatusB()[DPSLEEPM] = 0 AND Device in RELAX mode | The device goes to SLEEP mode. The device wakes up every Voltage Time to measure voltage and temperature. The device continues to coulomb count and update current every 4 s. Tip: Synchronize these two times to save power. |
| Exit | DA Config[SLEEP] = 0 OR |Current()| > Sleep Current OR Voltage Time = 0 OR OperationStatusB()[DPSLEEPM] = 1 | Return to NORMAL mode |
The configuration options for SLEEP are in the following data flash.
| Class | Subclass | Name | Type | Min | Max | Default | Unit | Description |
|---|---|---|---|---|---|---|---|---|
| Power | Sleep | Sleep Current | I2 | 0 | 32767 | 15 | mA | |Current()| threshold to enter SLEEP mode |
| Power | Sleep | Voltage Time | U1 | 1 | 20 | 5 | s | Voltage sampling period in SLEEP mode |