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  • BQ27Z561-R2: How to verify the I2C data when using the host to upgrade the configuration file

    TI Thinks Resolved
    Part Number: BQ27Z561-R2 Hi Team, The customer uses the MCU to configure and upgrade the fuel gauge. After exporting *.df.fs, there is only one comparison command. How to verify and ensure the correctness of the data? Thanks. Regards, Hailiang

  • BQ27Z561-R2: How does AverageCurrent() function?

    TI Thinks Resolved
    Part Number: BQ27Z561-R2 I understand that Current() and AverageCurrent() are updated every second. Current() seems to integrate over the previous one second. AverageCurrent() seems to have a first order integrator with a 14 - 15 second time constant…
    • Answered

  • BQ27Z561-R2：Fast OCV in SLUA997

    Resolved
    Part Number: BQ27Z561-R2 The original document is SLUA997, www.ti.com.cn/.../slua997.pdf For the problem as shown in the figure below, ①The second picture, why DOD0 jumps when the discharge current increases, I don't understand it very well here…
    • Resolved
    • Answered

  • BQ27Z561-R2: SOC Jump 8% to 0% at low temperature -10℃

    Resolved
    Part Number: BQ27Z561-R2 Other Parts Discussed in Thread: GPCRB , BQSTUDIO I use GPCRB tool but still SOC jump 8% to 0% at low temperature -10℃,is there any reason? Will the current that used in GPCRB tool impact Ra and Rb? GPCRB: Roomtemp(25℃) 4…
    • Resolved

  • BQ27Z561-R2: SOC drops issue

    Part Number: BQ27Z561-R2 Other Parts Discussed in Thread: BQ27Z561 Hello Sir: Please refer our log file and gg file. 0116.log 0117.log charge0116.log 20230118.gg.csv We follow below link recommend, change the load select to User Rate-CW. …

  • BQ27Z561-R2: Resume normal mode after Flash Update fails due to I2C communication error in ROM mode during processing the flash stream file

    Part Number: BQ27Z561-R2 Other Parts Discussed in Thread: BQSTUDIO , BQ40Z50 I already read the publicly available documentation but there is no information on how to recover from a communication error in ROM mode. Also, unfortunately the TI first level…

  • BQ27Z561-R2: Do you know the default SHA-256 key of BQ27Z561-R2?

    TI Thinks Resolved
    Part Number: BQ27Z561-R2 Other Parts Discussed in Thread: SHA-256 , , EV2400 Hello Sir: We are using BQ27Z561-R2 that we are using EV2400 to programming the FW but we cannot meet the SHA-256 authentication. Do you know the default SHA-256 key of BQ27Z561…

  • BQ27Z561-R2: Communications problems with bq27z561-R2 and EV2300

    TI Thinks Resolved
    Part Number: BQ27Z561-R2 Other Parts Discussed in Thread: BQSTUDIO , , BQ34Z100 , BQ27Z561 , EV2400 Hello, I am experiencing difficulty while trying to communicate with an bq27z561-R2 with bqStudio (or battery management studio?) and an EV2300 using…
    • Answered

  • BQ27Z561-R2: Does BQ27Z561YPHR-R2 fuel gauge support 3.2V LiFePo4 battery connection as (2 x Batteries in parallel)?

    Resolved
    Part Number: BQ27Z561-R2 Does BQ27Z561YPHR-R2 fuel gauge support 3.2V LiFePo4 battery connection (2 x Batteries in parallel)? If yes, How many maximum number of cells can be connected in parallel? We have set 1A charging current. Attached schematic…
    • Resolved

  • BQ27Z561-R2: SOC drops issue

    TI Thinks Resolved
    Part Number: BQ27Z561-R2 Hello Sir: Please help to check our log file. Our SOC from 9% drops to 0%. Would you please provide some recommendations for us and teach us how to solve this issue? Looking forward your feedback. Thanks a lot. 1213…

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