This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

bq27621关于Voltage at Charge Termination寄存器的读写问题



您好,我在操作27621的时候想修改Voltage at Charge Termination这个寄存器的值,datasheet上说这个寄存器的默认值为4190mv,我想对它进行修改,但我读出来的值达到上万,我想,肯定需要一个公式来计算之后再写入这个寄存器,但datasheet上没有关于这个寄存器公式的描述,因此可否提供一下这个寄存器写入值的公式,这样方便我来修改,或者提供一份文档说明也可以。

  • 您好,Voltage at Charge Termination参数没有计算公式。TRM 6.4.2.3.8 Voltage at Charge Termination (V at Chg Term) 有详细描述
    if using the default battery profile (CHEM_ID = 0x1202), the charging voltage will be 4200 mV and the default value of V at Chg Term can be used.
    If using ALT_CHEM1 (CHEM_ID = 0x1210) then V at Chg Term could be initialized to 4300 mV.
    If using ALT_CHEM2 (CHEM_ID = 0x354), V at Chg Term could be initialized to 4350 mV.
  • 我再做一下测试看下