Part Number: BQ25790 Other Parts Discussed in Thread: BQ25792 , BQ25672 Tool/software: Hi team,
In related question: BQ25790: ADC Accuracy
Internal ADC accuracy is said "about +/= 25% over temp with about a +50mA dc offset".
On BQ25792 and BQ25672…
Part Number: BQ25790 Tool/software: I have a project that includes TWO power limited sources A and B, each capable of about 15 watts of power and each of variable voltage (one is not always higher than the other).
A single BQ25790 is really great at…
HI Yishan,
If V(BAT)<BATUVLO~=2.5V:
Reduced CV loop for BATP=BAT = #cells x 2.5V for 1.5s with 100mA current clamp
Change to CC loop with 100mA trickle, pre-charge then fast charge until BATP = VREG
Regards,
Jeff
Hi Jeff,
There are some cases that " battery voltage getting higher than VREG"
1. Other battery charger product with different battery charger IC exists.
2. EE is camera. The full charge voltage at room temperature is normally 8.4V even when being…
Hi SM_ENG,
I am not aware of any side effects. I have seen other dual chargers do this, in fact TI has an older one, BQ24140, that was designed to do this for a 1S battery.
Regards,
Jeff
Part Number: BQ25790 Tool/software: Dear team,
Lenovo tablet team is evaluating BQ25790 but have following concerns which I didn't find the D/S.
1. Does BQ25790 support dual charger design? One as primary and one as secondary to support higher input…
Part Number: BQ25790 Tool/software: HI team,
1. I think the device has shoot through protection at switching FET, how to do this?
2. Regarding the spec, is it tested in each chip when production that minimum voltage input to maximum Iout (VBUS = 3.6V…
Part Number: BQ25790 Tool/software: I would like to know how to enable the OTG function without a OTG device insert? And if it can, what happens when a charger attach to Vin and the OTG is turn on at this time?
Part Number: BQ25790 Tool/software: Dear team,
Customer want to know if they can enable ship mode with adapter present? I checked the D/S seems ship mode only active with battery only. Is there a way to turn off ship FET with adapter？
If yes, please…
