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  • BQ27621-G1: Unable to Seal fuel gauge

    Part Number: BQ27621-G1 Other Parts Discussed in Thread: BQSTUDIO Hi, I have been unable to seal the fuel gauge after setting the battery chemistry. I was able to reset the part, set the battery chemistry and check the chemistry by using the ChemID subcommand…
    • Answered

  • BQ27621-G1: I2C NACK on power-up

    Resolved
    Part Number: BQ27621-G1 Other Parts Discussed in Thread: EV2400 I am working on a bug for a customer where certain units fail to communicate via I2C with the BQ27621-G1 fuel gauge. The host processor is an STM32F4 part (sorry, TI ). Here is our circuit…
    • Resolved

  • BQ27621-G1: Stronge SOC behavior

    Part Number: BQ27621-G1 Other Parts Discussed in Thread: BQSTUDIO Hello TI team, We are using BQ27621 fuel gauge in our product to monitor battery level. I developed driver folowing your recommandation. I configure : Design Capacity, Design Energy, Terminate…
    • Answered

  • RE: BQ27621-G1: suitability for a 4.1 v single cell battery

    Resolved
    Hi Gonzalo, BQ27621-G1 does not support 4.1V chemistry as there are only the 3 pre-programmed profile, 4.2V, 4.3V, 4.35V. BQ27421-g1 would be the better option. Best regards,

  • BQ27621-G1: question about Unsel and seal mode

    Part Number: BQ27621-G1 Hi team, customer use BQ27621-G1, have below questions 1. In the initialize, customer change to unseal mode, and check the register status,confirm that the device enter to unseal mode. then, write register, change to seal mode…

  • BQ27621-G1: Gauge returns non-sense values

    TI Thinks Resolved
    Part Number: BQ27621-G1 Other Parts Discussed in Thread: BQ24014 , BQSTUDIO , EV2400 , TMS320C5515 Hi, First of, let me tell you about specs and register settings. We are trying to use the gauge with Varta EZPack XL Li-Po Battery Voltage: 3.7v Capacity…

  • BQ27621-G1: Design Capacity of Part

    TI Thinks Resolved
    Part Number: BQ27621-G1 Other Parts Discussed in Thread: GPCCHEM , BQ27421-G1 , BQ27Z561 The design capacity on the website for this part shows 32000mAhr. The TRM only indicates 8000mAhr. Which is correct? Are ANY of the design capacity values featured in…
    • Answered

  • RE: BQ27621-G1: Possible discrepancy in IC's datasheet with TOGGLE_GPOUT (0x0023)

    Resolved
    Here is the bqz file for bq27621-G1 I find on my laptop. Can you find the same file in the bqStudio installation folder (e.g C:\ti\BatteryManagementStudio\config)? If so, replace it with the one I provide and check if you can see the same Commands Window…
    • Answered

  • BQ27621-G1: Is there an error in Rev C TRM?

    Resolved
    Part Number: BQ27621-G1 Hi team, Would you please help to check the TRM page 12, the description said the new_Csum is 0x1F, but it should be 0x58? http://www.ti.com/lit/ug/sluuad4c/sluuad4c.pdf?ts=1591113080949 Thank you. Regards, Allen
    • Resolved
    • Answered

  • BQ27621-G1: Accuracy under high load

    Resolved
    Part Number: BQ27621-G1 Will the bq27621-G1 provide accurate estimates under high load? Battery: 1 cell Li-ion battery, 4850mAh (INR21700 M50) Peak load: 4~5A
    • Resolved

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