SPMU383 April 2026 BQ27Z846
The device has a hardware-based over current in discharge protection with adjustable current and delay time. Additionally, this protection feature can be enabled to create a PF by setting the [AOCDL] bit in the Enabled PF B register.
| Status | Condition | Action |
|---|---|---|
| Normal | Current() < (AOCD Voltage Threshold/RSENSE) | SafetyAlert()[AOCDL] = 0, if AOCDL counter = 0 PFAlert()[AOCDL] = 0 Decrement AOCDL counter by one after each AOCD:Counter Dec Delay period, if AOCDL counter > 0 |
| Trip | Current() ≥ (AOCD Voltage Threshold/RSENSE) for AOCD Delay duration | SafetyStatus()[AOCD] = 1 OperationStatus()[XDSG] = 1 increment AOCDL counter |
| Recovery | SafetyStatus()[AOCD] = 1 for AOCD:Recovery time | SafetyStatus()[AOCD] = 0 OperationStatus()[XDSG] = 0 if SafetyStatus()[AOCDL] = 0. |
| Latch Alert | AOCDL counter > 0 | SafetyAlert()[AOCDL] = 1 PFAlert()[AOCDL] = 1, if PFEnable()[AOCDL] is set. |
| Latch Trip | AOCDL counter ≥ AOCD:Latch Limit | SafetyAlert()[AOCDL] = 0 SafetyStatus()[AOCDL] = 1 OperationStatus()[XDSG] = 1 PFAlert()[AOCDL] = 0 PFStatus()[AOCDL] = 1, if PFEnable()[AOCDL] is set. |
| Latch Reset | SafetyStatus()[AOCDL] = 1 for AOCD:Reset time | SafetyStatus()[AOCDL] = 0 OperationStatus()[XDSG] = 0 if SafetyStatus()[AOCD] = 0 |