Other Parts Discussed in Thread: EV2400, BQSTUDIO, BQ25700A
Hi all.
I have some trouble with BQ25708 design. Added schematic.
It work good with connected battery. Battery charge ok.
But I can not make it work without battery.
It not started, I have about 1V at Vsys, so my 5V converter not worked.
(but I have 6V at REGN and VDDA)
Chip in default state, no write to registers, only CELL_BATPRESZ pin connected to GND (for case without battery)
Thanks advance.
AnatolyBQ25708RSNT - test board.pdf