bq25895 or bq25895M is the chargers for power bank application. bq25895M can be operated in OTG boost mode down to VBAT=2.5V typical with MIN_BAT_SEL = 1. However, they are designed for Li-ion battery with the voltage range 3.84V to 4.61V. If the supercap…
Hi Delish,
I believe this issue is already discussed on another thread: https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1179325/bq25895m-bq25895mrtwr-charging-issue
I will mark this one as closed. If you…
Hi Peter,
We don't have a MTK driver for the BQ25890, only Linux drivers:
https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1023968/faq-bq25601-faq-could-ti-provide-the-sample-linux-driver-for-the-bq25890…
hello Joel,
Actually the BQ25895M unit cost on Digi-Key is $3.44,... kind of pricey,... but I found the BQ24259RGET (it's $2.52).
By the way, why is the input signal PSEL really needed? Is it important to distinguish between getting power from
a…
Hi,
It should be related to DPM (9.2.6.2 Dynamic Power Management on the d/s) or VBUS-VBAT delta being too small. Please check the FAQs below.
https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1025855/faq…
Frank,
Regarding 1, yes.
Regarding 2, stopping charge at 4.2V instead of 4.35V results in lower capacity and therefore shorter battery operating time. Actually, charging to a lower voltage lengthens battery life.
Regarding 3, TI has a 3-A standalone…
Shiva,
This is technical support for the charger. The BQ25895M is the closet device to the BQ25895. Other BQ2589X family devices such as BQ25890 and BQ25890H may also be considered.
Thanks,
Ning.
Rocky,
Please refer to the links below.
https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1023968/faq-bq25601-faq-could-ti-provide-the-sample-linux-driver-for-the-bq25890-bq25890h-bq25892-bq25895-bq25895m…
Olrik,
1. When charging is disabled and VBUS is valid, the charger switches and VBUS supports VSYS only. Please refer to the FAQ below for more info.
https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1022791…
