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  • BQ25121A: Operation without PWM possible?

    Resolved
    Part Number: BQ25121A Hi, I wonder whether the BQ25121A and my circuit can be operated from the LDO output only. I want to avoid the extra parts for PWM since I have very little space on my PCB and loads of 10 mA max. However, I am not sure if I get the…
    • Resolved

  • BQ25121A: SYS @1.4V

    TI Thinks Resolved
    Part Number: BQ25121A Other Parts Discussed in Thread: BQ25121 Hi there My current design contains a BQ25121A for battery management. After being attached to a power supply (USB) for approx. 12hrs, the BQ25121A has only 1.4V at VSYS. I could not find any…
    • Answered

  • BQ25121A: Help asked for finding a development board

    Resolved
    Part Number: BQ25121A Other Parts Discussed in Thread: BQ25120A , BQ25120 Hi, I tried to find a devboard for the BQ25121A but so far was unsuccessful. Isn't there any on offer? What do you recommend to do HIL testing? Best regards, Peter
    • Resolved

  • BQ25121A: Functionality issues with the battery charger. Battery not charging via Charging IC

    TI Thinks Resolved
    Part Number: BQ25121A Hi, We are using BQ25121AYFPT battery charger management IC. Our non-programmed Charging IC output is 2.5V and the programmed output is 3.3V We are facing issues of many kinds on our boards. To list down a few: First Case: The…

  • RE: BQ25121A: BQ25121A In the sleep mode powered by the battery, when awakened by MR , the chip cannot output the set 3.0V only output the default 2.5V

    Hi Star, Star Xu said: SYS will normally output 3.0V For a battery connection it will output 3.0V by default or is this after an I2C configuration? This is unexpected since the default value for the sys is 2.5V. This is why after a shipmode entry and exit…

  • BQ25121A: Vsys Regulation

    TI Thinks Resolved
    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
    • Answered

  • RE: BQ25121A: Searching TI solution

    Resolved
    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
    • Answered

  • BQ25120A: Any other differences with BQ25121A and BQ25125

    Resolved
    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…
    • Resolved

  • BQ25121A: BQ25121A Board Testing

    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…
    • Answered

  • [FAQ] BQ25120A: What are the device choices? The BQ25120A, BQ25121A, BQ25122, BQ25123, BQ25125, etc., look very similar?

    Resolved
    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…
    • Resolved

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