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  • BQ27Z561-R1: BQ27Z561-R1: After shutting down the entire machine during the -20 degree test, there was a 100% battery alarm issue when the machine was restarted

    Part Number: BQ27Z561-R1 Other Parts Discussed in Thread: GPCRB Hi I have a query need your help. What factors will trigger a reset，And What are the effects of resett？ The log shows the BUG described. When it is below 15 degrees Celsius, discharge at a…
    • Answered

  • BQ27Z561-R1: SoC jump due to temp change

    Resolved
    Part Number: BQ27Z561-R1 Other Parts Discussed in Thread: GPCRB Dear expert, My BQ27Z561R1 works fine for both 25C and -10C temperature. However, when temperature suddenly jump from -1C to -10.3C as below table in yellow, SoC jump from 18% to 16%. How…
    • Resolved

  • BQ27Z561-R1: SoC jump due to pulse load

    TI Thinks Resolved
    Part Number: BQ27Z561-R1 Dear expert, You can see below log in yellow. Big current cause voltage jump to 2996mV which is below "term voltage" (3100mV). This trigger SoC jump from 21 to 0. However, I already configure "Term V Hold Time" =60s…

  • BQ27Z561-R1: current accuracy error range

    TI Thinks Resolved
    Part Number: BQ27Z561-R1 Hi team， Could you please explain how to calculate the error of the current accuracy? My customer used 1m Ohm sense resistor which should achieve 4mA accuracy at 1A, however, occasionally some accuracy values will exceed 4mA， customer…
    • Answered

  • BQ27Z561-R1: Calibration step

    Resolved
    Part Number: BQ27Z561-R1 Dear expert, For Voltage Calibration, what's difference between A: " Send 0xF081 to AltManufacturerAccess() to enable raw cell voltage output on MACData()" and B: to use 0x08/09 Voltage()? Can A be faster? Customer…
    • Resolved

  • BQ27Z561-R1: TAmbient questions

    TI Thinks Resolved
    Part Number: BQ27Z561-R1 Dear expert, If AMB_PRED=0, TAmbient will be updated only in relax mode, right? How often? Every 5s? Or just once. Is TAmbient taken by average of temperature()? Or just one point temperature? In customer circumstance, they find…
    • Answered

  • BQ27Z561-R1: wait time after reset

    Resolved
    Part Number: BQ27Z561-R1 Dear expert, How long customer host processor need to wait before read SoC, current, Voltage etc info from BQ27Z561R1 to get valid info? Thanks a lot
    • Resolved
    • Answered

  • BQ27Z561-R1: Current at EoC abnormal

    Resolved
    Part Number: BQ27Z561-R1 Dear expert, Some failed return mobile from field shows very big "Current at EoC" for BQ27Z561R1. I doubt there is some random hardware abnormal in the field. Normal " Current at EoC" should be within 400mA. …
    • Resolved
    • Answered

  • BQ27Z561-R1: AMB_PRED

    Resolved
    Part Number: BQ27Z561-R1 Dear expert, "This can be useful in system applications that experience large increases in ambient temperature during discharges and/or charges without entry to RELAX mode." So for this situation, I should enable AMB_PRED…
    • Resolved
    • Answered

  • BQ27Z561-R1: Load Select

    Resolved
    Part Number: BQ27Z561-R1 Other Parts Discussed in Thread: GPCRB Dear expert, Our default "Load Select, Load Mode " value is 1,1? = "Present average discharge power"? So "Avg P Last Run" doesn't take effect? How long duration…
    • Resolved

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