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BQ24193 Charging current

Patrick Chen(TPE System & Application)
Expert 3430 points

Other Parts Discussed in Thread: BQ24193

Hi Sir,

I have three question need your help.

1. May I if the VBUS is 5V, what is the maximum charging current that BQ24193 could support?

On the spec, the "Figure 3. Charging Efficiency vs Charging Current" shows that the load current is only 3A when VBUS is 5V.

2. if 3A is the max at 5V VBUS, how could I choose and caculate the charging current since the maximum charging current setting is 4.5A on the register.

3. I set the ICHG[3] = 1, the charging current should be 512mA+512mA, but I read it on GaugeStudio, it report 1012mA, do you know why?

Thanks,

Patrick