AXP209 power questions

[pjwl]

Hello,

I'm using the AXP209 on my board, but I had a few question about the AXP209. I have connected a Li-Ion battery to AXP209 and charge it with a 5V charger what works fine.

I would like to know how much current IPSOUT pin can handle when only using the batter?

When I configure the shutdown voltage, I know that the APS pin will react to that setting, but will the battery input also react to this?


Thanks already

[Oleg Strelkov]

Hello

AXP209 maximum charge current is up to 1.8A, as described in:
http://dl.linux-sunxi.org/AXP/AXP209_Datasheet_v1.0en.pdf

You can inspect real current supply in charge and discharge modes from
sysfs file system:

root@A20-OLinuXino:/# cat /sys/class/power_supply/battery/status
Discharging
root@A20-OLinuXino:/# cat /sys/class/power_supply/battery/current_now
197000
root@A20-OLinuXino:/#

Parameter "current_now" gives current in micro-Ampere units.

When power supply is connected, charging begins:
root@A20-OLinuXino:/# cat /sys/class/power_supply/battery/status
Charging
root@A20-OLinuXino:/# cat /sys/class/power_supply/battery/current_now
370000
root@A20-OLinuXino:/#

Regards,
Oleg.