Part Number: BQ25121A Hi Team, would like to use the BQ25121A with a battery and wanna know if the Vsys will be able to regulate at 3.3V even if the battery is at 3V for example.
Thank you.
-Mark
Hi Kygo,
Could you please check the BQ25611D datasheet and find out whether the spec can meet the requirement. BQ25611D is a switching charger and the BOM cost would be higher than the liner charger solution.
Best regards,
Eric
Part Number: BQ25121A Hello
I am testing power supply section (BQ25121A) and I am facing an issue to get Default battery charging voltage 4.2V in BAT pin. I am applying 5V at VIN using USB, I have connected ISET, ILIM and IPRETERM External resistor…
Part Number: BQ25120A Other Parts Discussed in Thread: BQ25121A , BQ25125 Hi,
The FAQ refers to the table as showing the "key differences" between the parts. Are there any other differences?
https://e2e.ti.com/support/power-management-group/power…
Part Number: BQ25120A Other Parts Discussed in Thread: BQ25125 , BQ25123 , BQ25121A , BQ25122 , BQ25120F3A
The devices BQ25120A, BQ25121A, BQ25122, BQ25123, BQ25125, etc., are all part of the same family of battery chargers: BQ25120x. They function similarly…
Part Number: BQ25121A Other Parts Discussed in Thread: BQ25120 , BQ25120A Hello,
We have a wrist-worn device in the final phases of development, but our BQ25121A is experiencing a severe issue holding us back from going to market. The device enters, what…
Part Number: BQ25121A Hello
In a design with a BQ25121A, I have the problem that on some PCB's no output power gets generated. All pins are soldered correctly as far as I can measure from the outside. If I power the device with 5V at IN (pin A2) with…
Part Number: BQ25121A In the latest datasheet, Rev A, Jan 2021, Section 4 states "Changed reset state from 0100 1010 to 0100 0010.........................................................................................47"
It was referring to…
Part Number: BQ25121A
Hello,
We would like the end-user of our device to engage ship mode to turn the device off.
When we follow the sequencing as in the datasheet, the device bricks and cannot wake up (not with MR or with VIN). Holding MR low to activate…
Part Number: BQ25121A Greetings,
What is the expected behavior of the BQ25121A when the battery is disconnected, but an input charging voltage is supplied? I would expect that the Battery UVLO fault would trigger, but on our hardware we see the battery…
