德州仪器 (TI) 的 BQ769142 器件是一款高度集成的高精度电池监控器和保护器,适用于 3 节至 14 节串联锂离子、锂聚合物和磷酸铁锂电池组。该器件包括一个高精度监控系统和一个高度可配置的保护子系统,并支持自主式或主机控制型电池平衡。它集成了高侧电荷泵 NFET 驱动器、供外部系统使用的双路可编程 LDO 以及一个支持 400kHz I2C、SPI 和 HDQ 单线标准的主机通信外设。BQ769142 器件采用 48 引脚 TQFP 封装。
| Number of series cells (min) | 3 |
| Vin (max) (V) | 80 |
| Features | Digital output, High-side driver, I2C support, LDO output, Multi-cell support, Overcurrent in charging protection, Overcurrent in discharging protection, Overtemperature protection, Overvoltage protection, Separate MCU requirement, Short-current detection, Stackable (built-in interface), Temperature sensing, Undertemperature protection, Undervoltage protection |
| Device type | Cell monitor and balancer |
| Number of series cells (max) | 14 |
| Operating temperature range (°C) | -40 to 85 |
| Rating | Catalog |
| Battery overvoltage protection (min) (V) | 1.012 |
| Battery overvoltage protection (max) (V) | 5.566 |
| Communication interface | HDQ, I2C, SPI |
| TQFP (PFB) | 48 | 81 mm² 9 x 9 |