我们自己设计的bq24725a电源板,在没有接入电池的情况下,插入适配器,没有输出电压。如果这时插入电池,就有输出电压,拔出电池,也有输出电压(适配器供电)。请问,在没有电池的情况下,插入适配器,也应该有输出电压吧。
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.
Hi
The bq24725A automatically switches adapter or battery power to system. The battery is connected to system at POR if battery exists. The battery is disconnected from system and the adapter is connected to system after default 150ms delay (first time, the next time default is 1.3s and can be changed to 150ms) if ACOK goes HIGH. An automatic break-before-make logic prevents shoot-through currents when the selectors switch.