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BQ77910应用

Other Parts Discussed in Thread: BQ2060A, BQ3060

请问BQ77910能否串联使用保护更多串的CELLS

如何实现?能否给个方案?谢谢!

  • Hi Allen,

     The answer is YES. Two BQ77910 can be stacked to protect 11- to 20-cell packs.Please check the reference in the

    attachment. Let us know if have any further questions.

    1031.PR2010B.pdf
  • 感觉电路中的20串电路外部元件太多了,TI能否做成通过二个IC之间通信来实现多个IC串联就好了。

  • Hi Trevor Zheng,

        Thank you for the answer. Chinese is beeter for me to explain my question,allow me to ask quetion in chinese please!Thank you again!

       该硬件电路叠加后,如果要对eerom  编程,是不是要单独编程?演示版所配得上位机软件只能针对芯片的方案,如果我想统一显示电池容量,是不是还要重新写一个上位机软件,将2个芯片的电量叠加起来显示?本人刚刚涉足该行业,不是太清楚,还请高人指点。

  • Allen, 对eerom编程,需要单独操作910,910的设备地址为0010000,你可以尝试上拉EEPROM PIN使得单颗910进入编程模式的方式来操作该910的数据读写。910是模拟前端,具有电压,电流,温度保护功能,但不具备ADC,不能上报系统当前电压信息,如果你想做电池容量计算,可采用单独的电量计芯片bq2060A来实现,用MCU自带库伦计也可以做电量计算,但偏差通常在20%以上。

  • 电量计也可以采用bq3060电量计(bq2060A的更新).