BQ2947 Overview
The BQ2947 family is an overvoltage monitor and protector for Li-Ion battery pack systems. Each cell is monitored independently for an overvoltage condition. In the BQ2947 device, an external delay timer is initiated upon detection of an overvoltage condition on any cell.
BQ2947 Key Features
- 2-, 3-, and 4-series cell overvoltage protection
- External capacitor-programmed delay timer
- Factory programmed OVP threshold (threshold
- Output options: active high or open drain active
- High-accuracy overvoltage protection: ±10 mV
- Low power consumption ICC ≈ 1 µA
- Low leakage current per cell input < 100 nA
- Small package footprint
- 8-pin WSON (2.00 mm x 2.00 mm)