BQ294502 Overview
The BQ2945xy family of products is a secondary-level voltage monitor and protector for Li-ion battery pack systems. Each cell is monitored independently for an overvoltage condition. Based on the configuration, an output is triggered after a fixed delay if any of the two or three cells has an overvoltage condition.
BQ294502 Key Features
- 2-series and 3-series cell overvoltage monitor for secondary protection
- Fixed programmable delay timer
- Fixed OVP threshold
- Available range from 3.85 V to 4.6 V
- Fixed OVP delay option: 4 s or 6.5 s
- High-accuracy overvoltage protection
- Low power consumption ICC ≈ 1 µA
- Low leakage current per cell input < 100 nA
- Small package footprint
- 6-pin SON
BQ294502 Applications
- Second-level protection in Li-ion battery packs in