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    Answered

  • RE: BQ78350-R1: Programing the bq78350_R1 for the first time

    Resolved
    Hi Albert, I am confused. The BQ76930 is a 10S device, but you are connecting 14 cells? The BQ76940 supports up to 15 cells, so you should be using the BQ76940EVM. Can you verify which EVM you are using? There is nothing wrong with the BQ76930-R2…

  • RE: Difference between BQ78350 and BQ78350-R1

    Hi, Is the EV2400 safe to use for firmware updates? On the bq76940evm site ( www.ti.com/.../bq76940evm) it is stated that EV2400 shouldn't be used for fw updates. TT

  • RE: BQ76940: I have bought bq76940 and bq78350-r1 for 4 series 10 parallel lithium ion battery pack system and would like to know how to connect these two chip to the system

    Hi Siva, Please check out this EVM. It includes both a bq76940 and bq78350. www.ti.com/.../BQ76940EVM The user's guide including schematic and BOM may be found here: www.ti.com/.../slvu925b.pdf Sincerely, Bryan Kahler

  • RE: BQStudio shows incorrect cell voltages with Simulator off

    Hi Tom, my board definitely has a Sticker saying BQ76940EVM on it. J9 is not populated, i can only attach cells from C0 to C10. The AFE Cell Map is set up accordingly. My power source can provide a maximum current of 3 A and i did not experience…
    • Answered

  • RE: BQ76920: BQ76920/BQ76930/BQ76940 cad file

    Resolved
    Hi Dustin, The bq76940 is used in TIDA-00255 file, this is the bq76940EVM board and the same board used for the bq76930. Device symbol/footprints can be downloaded at http://webench.ti.com/cad when available, but I don't find these 3 parts there. I…
    • Answered

  • RE: BQ76920EVM: Are they available to download the design files?

    Resolved
    Hi FranMartin, Unfortunately there are not. The bq76940EVM is available as TIDA-00255, but the pinout and layout is different. It is a good starting point for a schematic, and the bq76920 symbol is available at http://webench.ti.com/cad , but for layout…

  • RE: BQ76940: Sometimes shutdown, and it does not boot until remove from batteries.

    Hi Teramoto-san, The BQ76940 should not automatically shut down by itself. The BQ78350 has automatic shutdown for low voltage, but they are not using the BQ78350. Is it possible the microcontroller is sending the Shutdown command to the BQ76940? Even…
    • Answered

  • BQ76940: 100A discharge interrupt suddenly

    Resolved
    Part Number: BQ76940 Other Parts Discussed in Thread: BQSTUDIO , Hi there, I’m working with your BQ76940EVM and my pack 14S1P. With a load of 5A there is no problem, works fine. NEVERTHELESS, with a load of 100A the BMS abort the discharge. Let me…
    • Resolved
    • Answered

  • BQ78350-R1 DSG and CHG lines closed (XDSG, XCHG are on) all the time

    Resolved
    Other Parts Discussed in Thread: BQ76940EVM , BQ78350-R1 , BQ76940 Hi all, I have connected the BQ76940EVM to a battery pack. my XDSG and XCHG flags a permanently on. I programmed the default firmware of BQ78350-R1, and defined all "Data Memory…
    • Resolved

  • RE: EV2300 USB drivers unknown on last Windows 10 update

    Hi Benjamin, we acquired EV board for BQ769x0 ( BQ76940EVM) and it is said in user manual that EV2400 is not working and we should use EV2300. So we bought the EV2300.... but I just discovered that EV2300 is not working with windows 10. Can you help…

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