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  • BQ25820: BQ25820 Maximum Duty Cycle

    TI Thinks Resolved
    Part Number: BQ25820 Hello, I was wondering what the practical duty cycle limit is for the BQ25820 while in buck mode charging the battery. Thankyou

  • BQ25820: BQ25820 not charging

    Part Number: BQ25820 Other Parts Discussed in Thread: BQ25756 Tool/software: Hi, i have a simple design using the BQ25820 i am for the moment using this in standalone while i understand its capabilities. i have followed the data sheet and the EVK and…

  • BQ25820: BQ25820 not performing as expected.

    Part Number: BQ25820 Other Parts Discussed in Thread: BQ25756 Tool/software: Hi, i am developing a new design with the BQ25820. i have the EVK and the performance looks good. i am not using input current sensing or Vsys out just a stand alone charger…

  • BQ25820: BQ25820, Reverse mode & charge mode Switch

    TI Thinks Resolved
    Part Number: BQ25820 Tool/software: Hello, I have a requirement now. For the BQ25820 chip, when it has both AC power and battery power supply. Assuming that the AC power may randomly disconnect or reconnect, at this time, the BQ25820 can switch between…

  • BQ25820: BQ25820 minimal fully drained battery voltage for Pre-charge

    TI Thinks Resolved
    Part Number: BQ25820 Tool/software: Hi, I try to understand what is the minimal fully drain battery voltage level that can be Pre-charge with the BQ25820? and what parameter/ parameters related to this threshold in the datasheet BR Shac…

  • BQ25820: BQ25820 and BQ25820EVM- BATFET control

    TI Thinks Resolved
    Part Number: BQ25820 Tool/software: Hi, Can you please explain the usage and the difference of the: FORCE_BATFET_O FF ( REG0x19_Power_Path_and_Reverse_Mode_Control Register) and the EN_BATFET_IDEAL _DIODE and the relation between both In general…

  • BQ25820: BQ25820 Boosting the charge current beyond 20A possible?

    Part Number: BQ25820 Tool/software: Hello, I know the BQ25820 is limited to 20A in the datasheet. What would prevent using it at 30A with higher current external FET's and high current Inductors? There is a note about the Rsense remaining 5mOhms and…

  • BQ25820: Request for Schematic and Technical Support for 20A, 48VDC Charger Design Using BQ25820

    TI Thinks Resolved
    Part Number: BQ25820 Tool/software: Dear Texas Instruments Technical Support, We are reaching out regarding the BQ25820 battery charger IC. We are currently evaluating this device for a high-current application and have reviewed the datasheet, which…

  • BQ25820: BQ25820 Buck battery charger settings for NiMH Chemistry

    TI Thinks Resolved
    Part Number: BQ25820 Tool/software: Customer is using NiMH battery 2xC type (in series) 2.4V 5Ah. Does the BQ25820 support for charging NiMH battery chemistry? Product details says yes, but details are difficult to find. If it does support NiMH chemistry…
    • Answered

  • [FAQ] BQ25820: How To Connect BQ25820 If Power Path Is Not Needed

    Resolved
    Part Number: BQ25820 Tool/software: If power path is not needed on BQ25820, remove the BATFET, connected Pin 32 (SYS) to Pin 33(VAC), leave Pin 15 (BATDRV) floating, and connect Pin 16 (BATSRC) to Pin18(VLSNS). Best Regards, Christian
    • Resolved

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