The BQ76942 device integrates a broad suite of
protections for battery management and provides the capability to enable individual
protections, as well as to select which protections will result in autonomous
control of the FETs. See the
BQ76942
Technical Reference Manual for detailed
descriptions of each protection function.
The primary protection features include:
- Cell Undervoltage Protection
- Cell Overvoltage Protection
- Cell Overvoltage Latch Protection
- Overcurrent in Charge Protection
- Overcurrent in Discharge Protection
(Three
Tiers)
- Overcurrent in Discharge Latch Protection
- Short Circuit in Discharge Protection
- Short Circuit in Discharge Latch Protection
- Undertemperature in Charge Protection
- Undertemperature in Discharge Protection
- Internal Undertemperature Protection
- Overtemperature in Charge Protection
- Overtemperature in Discharge Protection
- Internal Overtemperature Protection
- FET Overtemperature Protection
- Precharge Timeout Protection
- Host Watchdog Fault Protection