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Hello,
We use the Charger BQ24230. We have to decrease the quiescent current of the whole system to reach an acceptable storage time of the device.
We measure a quiescent current around 13uA from Charging IC under following condition:
- No power is applied on IN (Pin13)
- The load attached to 4V2 is in deep sleep (1.7uA)
- Circuit according to the attached picture
If we connect the Pin EN1 to GND instead of 4V2, we measure a quiescent from BQ24230 current around 2.3uA (4uA with load in deep sleep)
The question: Are there other possibilities to reduce the quiescent current? What we have to change to improve it?
Thank you and best regards
Damian
