My design is 20V / 5A input.
Charge 4 or 3 strings of 18650 batteries.
The maximum charging current is about 5A.
How do I know what the power consumption of BQ24780S?
I am asking about the power consumption of the IC itself.
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My design is 20V / 5A input.
Charge 4 or 3 strings of 18650 batteries.
The maximum charging current is about 5A.
How do I know what the power consumption of BQ24780S?
I am asking about the power consumption of the IC itself.
Hi Nicolas,
Please refer to the Quiescent Current specification in the datasheet. This provides IC power consumption under various conditions. Since you mention the charging current, I would assume you are interested in the last parameter on the list, which is IC power consumption while switching, which is a typical power consumption of 10 mA. Note that this assumes 4 nC of gate charge on the switching FETs. If you choose FETs with higher gate charge, the switching power consumption will be higher.
Regards,
Steve