Hi Hulu,
Based on device register 0x0B value (0x2A) it looks like the VINDPM setting is enabled and set to 4.4V for this device. Considering that is the same VIN measured, and that register 0x00 reads 0xC5 (indicates VINDPM is active), I believe this…
Part Number: BQ25125 Tool/software: Hello TI Support Team,
I am experiencing an issue with the BQ25125 battery management IC on my custom board. Specifically, when the battery voltage (VBAT) drops below 3.2V, I²C communication with the BQ25125 becomes…
Part Number: BQ25125 Tool/software: Hi,
We would like to generate a reset pulse when we plug a charger.
Our idea was to connect /PG output to /MR input, so a reset pulse is generated when a valid power input is present. This work well but we observe…
Hi Juan,
Thanks for your help regarding the VINDPM threshold. Lowering the threshold solved the issue I was experiencing.
However, I noticed a voltage drop across diode D201: I'm measuring 5.1V before D201 and 4.6V on the load side after it. I believe…
Part Number: BQ25125 Tool/software: Hello,
I have seen a failure where it seems that the BQ25125 discharged a battery below the threshold set in UVLO register.
I thought this part provides under-voltage protection - am I incorrect about this ?
.js. …
Part Number: BQ25125
Tool/software:
Due to space constraints I have to use a very small SMD inductor on the SW pin.
The datasheet recommends to use a 2.2µH inductor but these are not available in sizes smaller than 0603.
I found a small 1.5µH inductor…
Part Number: BQ25125
Tool/software:
The FAQ post says PGND and GND need to be tied together.
Also the BQ25125 Schematic Checklist mentions "Ensure USBGND and PGND are tied together." which I think is an error (there is no USBGND) and means GND.…
Part Number: BQ25125 Tool/software: I want to use Vsys with 1.8V and LDO with 1.8V which seems to be the default setting for BQ25125 as written in the device comparison table in the datasheet.
I have some questions:
1. The typical application example…
Part Number: BQ25125 Tool/software: I may be missing something - BUT...
In table 9-1 the x4 states of the device which depend on the CD input and Vin are documented.
But - in order to know which state I am in - I need to know if Vin > Vuvlo.
I obviously…
Part Number: BQ25120A Tool/software: Hello,
I am finding figure 9-3 possibly inaccurate, and I am having difficulty understanding how the "decoder" section works.
It shows the battery voltage input as 0.8 * vbat.
and vref as vbat_request ? …