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BQ25121: High consumption after disconnection Vin

Part Number: BQ25121

Hi.

I use BQ25121 to charge the battery and CPU power in a wireless device. Vsys = 1.8V. Everything works well. But sometimes when disconnecting Vin appears unnecessary consumption of batteries ~ 1mA. Now I connected a resistor in place of the processor in the 1.3 kOhm.  Switching Vin can be achieved Isys = 2,3ma instead 1.4mA. With what it can be? Thank you