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Vbat current consumption issue in run mode

ABinu.1
Associate

Hi,

we are using STM32f373, with VBAT powering by Li 3V battery, when we disconnect VDD (3.3V), the current consumption from the battery is 1uA, when we supply VDD, the current consumption jump to 29uA.

in "run mode" (VDD supplied) If we disconnect and reconnect the battery , the current consumption from the battery goes from 29 uA to 0 uA, (it seems that the internal sw is working.

Any idea what can cause this issue?

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