BQ77904
Features
- NORMAL mode: 6 µA (BQ77904 and BQ77905)
- Full suite of voltage, current, and temperature protections
- Scalable cell count from 3 series to 20 series or more
- Voltage protection (accuracy ±10 m V)
- Overvoltage: 3 V to 4.575 V
- Undervoltage: 1.2 V to 3 V
- Open cell and open-wire detection (OW)
- Current Protection
- Overcurrent discharge 1:
- 10 m V to
- 85 m V
- Overcurrent discharge 2:
- 20 m V to +170 m V
- Short circuit discharge:
- 40 m V to +340 m V
- Accuracy ±20% for ≤ 20 m V, ±30% for > 20 m V across full temperature
- Temperature protection
- Overtemperature charge: 45°C or 50°C
- Overtemperature discharge: 65°C or 70°C
- Undertemperature charge:
- 5°C or 0°C
- Undertemperature discharge:
- 20°C or
- 10°C
- Additional Features
- Independent charge (CHG) and discharge (DSG) FET drivers
- 36-V absolute maximum rating per cell input
- Built-in-self-test functions for high reliability
- SHUTDOWN mode: 0.5-µA maximum
- Functional Safety-Capable
- Documentation available to aid...
