BQ77216 产品系列提供了多种电压和温度监控功能,包括适用于锂离子电池包系统的过压 (OVP)、欠压 (UVP)、开路 (OW)和过热 (OT) 保护。可独立监控每节电池是否具有过压、欠压和开路情况。通过增加外部 NTC 热敏电阻,该器件可以检测到过热情况。
当检测到存在过压、欠压、开路或过热情况时,BQ77216 器件即启动内部延迟计时器。延迟计时器过期时,将触发相应的输出进入其工作状态(根据配置的不同,为高电平或低电平状态)。
| Function | Protection |
| Number of series cells (min) | 3 |
| Number of series cells (max) | 16 |
| Features | FET drive, Open wire (OW), Over-temperature (OT), Overvoltage, Stackable, Under-temperature (UT), Undervoltage |
| Operating current (typ) (µA) | 1 |
| Rating | Catalog |
| Vin (max) (V) | 85 |
| TI functional safety category | Functional Safety-Capable |
| Overvoltage protection | 3.6, 3.8, 4.225, 4.25, 4.275, 4.3, 4.325, 4.35 |
| Operating temperature range (°C) | -40 to 110 |
| Battery overvoltage protection (min) (V) | 3.55 |
| Battery overvoltage protection (max) (V) | 5.1 |
| TSSOP (PW) | 24 | 49.92 mm² 7.8 x 6.4 |