The BQ40Z80 device provides a feature-rich battery management solution for
2-series cell to 7-series cell battery-pack applications. The BQ40Z80 device has
extended capabilities, including:
- Fully integrated 2-series to
7-series Li-ion or Li-polymer cell battery pack manager and protection
- Next-generation patented Impedance Track®
technology accurately measures available charge in Li-ion and Li-polymer
batteries
- High-side N-CH protection FET
drive
- Integrated cell balancing while
charging or at rest
- Low Power Modes
- Full array of programmable
protection features
- Voltage
- Current
- Temperature
- Charge timeout
- CHG/DSG FETs
- Cell imbalance
- Sophisticated charge algorithms
- JEITA
- Advanced charging
algorithm
- Diagnostic lifetime data
monitor
- Black box event recorder
- Supports two-wire SMBus v1.1
interface
- Elliptic Curve Cryptography (ECC)
authentication
- SHA-1 authentication
- Ultra-compact package: 32-Lead
QFN