When the card is powered down, VCC will be at zero. However, one of the voltages being sensed is battery backed and will still be present. It is 3.0V that is divided down via a resistive divider of 15.4K & 2.74V providing about 0.5V on SENSE3 while VCC is 0V. Is it OK to have voltages on the SENSE input when VCC is not powered and if so, will there be leakage current that flows from the SENSE input to VCC that could start charging up bypass caps on the VCC bus?