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PGA411内部BOOST供电问题



BOOST输入电压VCCSW=5V,而BOOST输出电压VEXT=15V,规格书page96提到VEXT>14V时,VCCSW需要大于5V,请问VCCSW需要提供多少电压值合适?如果VCCSW=5V,在应用上会有什么问题?