Part Number: BQ25622 Quick question regarding BQ25622 – Is the recharge hysteresis (VRECHG) applicable when charge voltage is reduced for hot region? For example, if the full charge voltage VREG=4.45V, recharge hysteresis VRECHG =200mV, charge voltage…
Part Number: BQ25622 Dear TI support,
I was searching for acceptable capacitance for the BTST capacitor, but as I found the datasheet only mentions 47 nF. Is for example a 100 nF capacitor acceptable? I have a board assembled with a 100 nF capacitor for…
Part Number: BQ25622 Hello team,
The BQ25622 driver we talked about in the thread below,
https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1264486/bq25622-linux-driver?tisearch=e2e-sitesearch&keymatch=BQ25622…
Hi Ning,
Thanks for information, let me go through it.
Ning T said: charger
Could you please help me Where I can see the firmware of charger ?
I will try manual testing of charger when firmware is not available .
May I know What is the charger "online…
Hi Garrett
I think we have found the issue.
The VBUS voltage is not rising far enough to start the BQ25622 converter, the voltage rises to 3.8V and SYS rises to 1.5V, see trace below:
As the microcontroller is powered by SYS it has not started so the…
Part Number: BQ25622 Other Parts Discussed in Thread: BQ25620 I believe I have found a chip problem with the BQ25622.
In brief:
Does not recharge the battery.
VBUS, VSYS are as expected. The battery thermistor is 10K ar 25 degC, and it is behaving as…
Part Number: BQ25622 Hi team,
When BQ25622 get thermal shutdown, what's the exact behavior under this condition? Does Vsys still could get power from VBAT through BAT FET?
Could you help comment on this?
Thanks and Best Regards,
Will
It happened to me as well, please refer to this post in forum: https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1235771/bq25622-schematic-check/4683128?tisearch=e2e-sitesearch&keymatch=BQ25622#4683128
What…
MJ,
It looks like the ICs are improperly marked. Please refer to https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1239152/bq25622-improperly-marked-bq25622-are-actually-bq25620 and your company should be notified…