BQ2961 Description
The BQ296xxx family is a high-accuracy, low-power overvoltage protector with a 2-mA regulated output supply for Li-Ion battery pack applications. Each cell in a 2-series to 4-series cell stack is individually monitored for an overvoltage condition. An internally fixed-delay timer is initiated upon detection of an overvoltage condition on any cell.
BQ2961 Key Features
- 1 2-series, 3-series, and 4-series cell overvoltage protection (OVP)
- Fixed delay timer to trigger FET drive output (3-s, 4-s, 5.5-s, or 6.5-s options)
- Factory programmed OVP threshold (threshold range 3.85 V to 4.6 V)
- Output options: active high
- High-accuracy overvoltage protection
- Regulated supply output with self-disable and/or
- Options: 3.3-V, 2.5-V, and 1.8-V (BQ2960
- Options: 3.3-V, 3.15-V, 3.0-V (BQ2962)
- Low power consumption ICC ~ 4 µA (VCELL(ALL) < VPROTECT)
- Extra low power consumption with reg output disabled, ICC ~ 1.2 µA