电压保护与自动电池平衡2节串联锂离子电池 Voltage Protection with Automatic Cell Balance for 2-Series Cell Li-Ion Batteries
The bq2920x device is a secondary overvoltage protection IC for 2-series cell lithium-ion battery packs that incorporates a high-accuracy precision overvoltage detection circuit and automatic cell imbalance correction.
The voltage of each cell in a 2-series cell battery pack is compared to a factory programmed internal reference voltage. If either cell reaches an overvoltage condition, the OUT pin changes from low to high state.
The bq2920x can perform automatic voltage-based cell imbalance correction. Balancing can start when the cell voltages are different by nominally 30 mV or more and stops when the difference is nominally 0 mV. Cell balancing is enabled and disabled by the CB_EN pin.
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
BQ29200DRBR TI 德州仪器 | 当前型号 | 当前型号 |
BQ29200DRBT 德州仪器 | 类似代替 | BQ29200DRBR和BQ29200DRBT的区别 |