bq771809
Features
3 Description
- 2-, 3-, 4-, and 5-series cell overvoltage protection
- Internal delay timer
- Fixed OVP threshold
- High-accuracy overvoltage protection:
± 10 m V
- Low power consumption ICC ≈ 1 µA
(VCELL(ALL) < VPROTECT)
- Low leakage current per cell input < 100 n A
- Functional Safety-Capable
- Documentation available to aid functional safety system design
- Package footprint options:
- Small 8-pin QFN (3.00 mm × 4.00 mm)
- Leaded 8-pin MSOP (3.00 mm × 5.00 mm, including leads)
2 Applications
- Protection for li-ion battery packs used in:
- Handheld garden tools
- Handheld power tools
- Cordless vacuum cleaners
- UPS battery backup
- Light electric vehicles (e Bike, e Scooter, pedal assist bicycles)
The BQ7718xy family of products provides an overvoltage monitor and protector for Li-Ion battery pack systems. Each cell is monitored independently for an overvoltage condition. For quicker productionline testing, the BQ7718xy device provides a Customer Test Mode (CTM) with...
