The BQ769142 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
BQ769142 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