TI中文支持网当充电电压为5V 时，无法充电，并且state灯闪烁
当提高充电电压到5.4V时，开始能够充电，充电电流为设置电流。
这种情况是什么原因造成的呢？
user2005434：
补充说明下，在上面的情况下，如果取下两节电池，单独给一节电池充电，即使在5V电压下也能正常充电。但是加到两节就无法充电了，必须提高充电电压
Star Xu：
回复 user2005434:
您的设置电流是多大。
Star Xu：
回复 Star Xu:
The charger is basically a step-down DC-DC (buck) converter. It requires the input voltage to be higher than the output voltage with some headroom for normal operations. The maximum duty cycle spec is one of the factors determines the maximum output voltage at a fixed input voltage. Users should avoid maximum duty cycle operations in their applications by setting VINDPM and IINDPM thresholds correctly. Please refer to Extract maximum power from the supply when charging a battery (www.ti.com/…/slyt569.pdf) for the details.
BQ25606: Schematic Review and PCB Layout Design Tips.e2e.ti.com/…/890626
关于BQ25606的 FAQs在下面的链接www.ti.com/…/slva924.pdf Designing A Standalone Single Cell 3-A Charger with the bq25606.
