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BQ25750EVM: 目前使用BQ25750充电电压不正常问题

Part Number: BQ25750EVM
Other Parts Discussed in Thread: BQSTUDIO, EV2400, , BQ25756, BQ25750

在输入电压开始为11V时,其充电电压为EVM板子默认充电电压22V,在输入电压从11V增加到20V时,其充电电压从22V增加到接近30V.但输入电压达到21V时,其充电电压变为7V左右。设置输入电压大于20V时,其充电电压都小于默认充电电压。使用EV2400在BQStudio上查看芯片寄存器数据都在正常范围,请问这是板子哪方面出来问题了。