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    Answered

  • BQ27Z561-R2: There is a problem with the reaction at initial startup.

    Resolved
    Part Number: BQ27Z561-R2 Other Parts Discussed in Thread: BQSTUDIO It seems that the startup sequence or RSOC read timing is incorrect, but I haven't found a solution yet. Ex) GoldenImage implementation product (3.2V to 4.2V) Attach a battery of…
    • Resolved
    • Answered

  • BQ27Z561-R2:SDA pin does not become 0V

    Resolved
    Part Number: BQ27Z561-R2 Other Parts Discussed in Thread: BQ27Z561 , , EV2400 BQ27Z561's SDA pin become 2V when master access 0x55 address(BQ27Z561 7bit I2C address). Why does not the SDA pin become 0V? Pullup resistor is 10kOhm at the SDA pin. …
    • Resolved

  • BQ27Z561-R2: BQSTUDIO ChemID database ZIP file is missing from the TI website

    TI Thinks Resolved
    Part Number: BQ27Z561-R2 Dear all, I downloaded new version FW, but new chemID database ZIP file is shown as 0KB and I actually can not find it when I go for a download. Am I missing somethin or the file is missing? Best regards, Aivaras

  • BQ27Z561-R2: Cycle count

    TI Thinks Resolved
    Part Number: BQ27Z561-R2 Hi Team， Suppose Cycle Count Percentage is set to 90%. If the fuel gauge is turned off by pulling down the CE pin after discharging 40% in a new counting cycle, and then pulls up the CE pin, will the accumulated discharge amount…
    • Answered

  • BQ27Z561-R2: About the connection between BAT terminal and BAT_SNS terminal

    Resolved
    Part Number: BQ27Z561-R2 Other Parts Discussed in Thread: BQ27Z561EVM-011 , BQ27Z561 Dear Sir. Would it be all right if BAT_SNS terminal is connected to BAT terminal direct? BAT terminal is connected to Li-ion Cell plus terminal via R1 resistor (10…
    • Resolved

  • BQ27Z561-R2: chemical id mismatch

    Part Number: BQ27Z561-R2 Hello Ti team, Hello Ti team, I am currently working on the fuel gauge learning cycle. In the chemical ID process, we got the chemical ID from Ti. The chemical ID was 3607. But chemical IDs are not matched with our battery…
    • Answered

  • BQ27Z561-R2: Current sense resistor value

    Resolved
    Part Number: BQ27Z561-R2 Dear all, BQ27Z561-R2 datasheet first page schematic presents that sense resistor can be between 1 mOHM to 10 mOHM. However in 9.4.1 Layout Guidelines it is stated that "The device is designed to support a 1-mΩ to 3-mΩ sense…
    • Resolved

  • BQ27Z561-R2: Battery Chem ID conformation

    Part Number: BQ27Z561-R2 Other Parts Discussed in Thread: GPCCHEM Here is the revised version to share on TI forum: We are using bq27z53f Fuel gauge sensor for monitoring the charge status of 260mAh, 3700mV battery. Load for this battery includes the…
    • Answered

  • BQ27Z561-R2: Charing terminal voltage derating

    Resolved
    Part Number: BQ27Z561-R2 Hi Team, After the battery has been charged and discharged 400 times, the customer modifies the cut-off charging voltage of the charging IC, and adjusts the full charging voltage from 4.4V to 4.25V. Besides Charge Term Charging…
    • Resolved

  • BQ27Z561-R2-DEVICE-FW: ADS 1285 EVM-PDK testing problem

    TI Thinks Resolved
    Part Number: BQ27Z561-R2-DEVICE-FW Other Parts Discussed in Thread: ADS1285EVM-PDK , ADS1285 I'm testing the ADS1285EVM-PDK 32bits ADC board, but I met some problems. When I only connect the UBS wire to PC and do not connect sonser, I measure the voltage…

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