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BQ76PL455ATPFCRQ1的VREF管脚去耦电容的选择

关于BQ76PL455ATPFCRQ1 Vref外接电容一定要1.8uF吗?这个1.8u电容是很偏门的,很不好采购。请帮忙确认能否使用2.2或1u替代?谢谢

 

另外我看下TI的一份资料说这个电容不能超2uF?如果使用2.2u电容会有什么问题?谢谢