BQ296xxx Overvoltage Protection for 2-Series, 3-Series, and 4-Series Cell
Li-Ion Batteries with Regulated Output Supply

1 Features

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 3.85V to 4.6V)
Output options: active high
High-accuracy overvoltage protection: ±10mV
Regulated supply output with self-disable and/or external enable/disable control
- Options: 3.3V, 2.5V, and 1.8V (BQ2961)
- Options: 3.3V, 3.15V, 3.0V (BQ2962)
Low power consumption I_CC ~ 4µA (V_CELL(ALL) < V_PROTECT)
Extra low power consumption with reg output disabled, I_CC ~ 1.2µA
Low leakage current per cell input < 100nA
Small package footprint
- 8-Pin WSON (2mm × 2mm)