TI中文支持网Part Number:BQ24610
In my design, the input voltage is 18V, and the 4-string lithium battery is 16.8V. When the battery is fully charged, it is disconnected and connected to the input terminal again. At this time, there is a problem with the detection status of STAT1, STAT2, and #PG. The indicator lights of STAT1 and STAT2 flash alternately, and the #PG indicator light also flashes all the time. I measured #ACDRV, #BATDRV, ACN, VCC, and found that AC SWITCH and BATTERY SWITCH have been switching.
But this doesn't happen when I raise the input voltage to around 18.5V, or when I set the battery voltage to around 16.1V.
Does the input voltage need to be higher than the battery voltage? How much higher do you need?
我的设计中，输入电压18V，4串锂电池16.8V，当电池充满后，断开再次接入输入端，此时STAT1, STAT2, #PG检测状态存在问题，STAT1, STAT2的指示灯交替闪烁，#PG指示灯也一直闪烁；我测量了#ACDRV, #BATDRV, ACN, VCC, 发现AC SWITCH和BATTERY SWITCH一直在切换。
但我将输入电压调高至18.5V左右不会出现此现象，或者将电池电压设置至16.1V左右，也不会出现此现象。
请问输入电压需要比电池电压高一些吗？需要高多少？
Annie Liu：
请问您是否方便提供原理图？
