abhi k
Newbie level 1
Dear Support Engineer,
We designed based on Allwinner A20 processor with AXP209. Now we are facing a problem related to power. We are using only ACin for powering.
When we power on with 5V to ACIN, we are getting 3V,1.3V, 2.8V, 1.2V & other voltages only for 100ms. After that all the voltages goes down to 0V except 1.3V LDO and we are getting VINT as 2.5 V and 1.2V on Bias pin.
Pressing the N_OE switch shows a small blip for same 100ms. We have done prototype for 5 boards, all the boards are behaving same.
Please let me know what causing the same.
Regards,
Abhi
We designed based on Allwinner A20 processor with AXP209. Now we are facing a problem related to power. We are using only ACin for powering.
When we power on with 5V to ACIN, we are getting 3V,1.3V, 2.8V, 1.2V & other voltages only for 100ms. After that all the voltages goes down to 0V except 1.3V LDO and we are getting VINT as 2.5 V and 1.2V on Bias pin.
Pressing the N_OE switch shows a small blip for same 100ms. We have done prototype for 5 boards, all the boards are behaving same.
Please let me know what causing the same.
Regards,
Abhi