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bq4050自耗电的问题

Other Parts Discussed in Thread: BQ4050

hi 大家好

请教一个问题,关于bq4050的自耗电问题,规格书给如下图

我实际测试CHG和DSG全开通讯读取自耗:350uA

我关闭CHG打开DSG通讯开330uA

下发关机命令后,1.5mA  

都远远超出规格书给的值,这是怎么回事呢?PRES脚为1K电阻到地,还是哪里配置问题呢?