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TPS65910 VBACKUP 脚悬空会有这样?有什么影响?

Other Parts Discussed in Thread: AM3352

大家好:

         我用TPS65910A3A1+AM3352设计,按照数据手册TPS65910A3A1 的27脚VBACKUP 如果不用就接VCC5,现在的设计VBACKUP 悬空了,

对设计会有什么影响?