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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/676691/bq25890-bq25890-adc-problem
MCU 可以通过 VBUS 在线读取 VBAT 值。 当移除 VBUS 时、MCU 从 VBAT 电压寄存器读取零。
您好、Dimon、
当仅由电池供电时、ADC 仅在 V (BAT)> MINSYS 时工作。 如果将 MINSYS 设置为3.0V 而不是默认的3.5V、ADC 将正确读取低至 V (BAT)=3.0V。
谢谢！
