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BQ24610内部参考电压输出问题

Other Parts Discussed in Thread: BQ24610

本人学生,与使用BQ24610来对超级电容进行充电,但是空载状态下芯片的参考电压VREF输出不正常,请问这是什么问题呢?电路参考评估版进行了更改,请问是否是我的电路有问题呢,下附原理图,VREF波形图,空载下输出图,还有输入电压VIN的电压纹波

VREF波形图:

空载下输出图:

输入电压VIN的电压纹波: