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  • BQ40Z80: Voltage Calibration

    TI Thinks Resolved
    Part Number: BQ40Z80 Tool/software: Hi all, I am 5s, please tell me how to Voltage Calibration. Only enter value in the Cell1 & Pack Voltage, right? thanks Mulin
    • Answered

  • BQ40Z80: Inquiries regarding the use of lithium iron phosphate in Bq40z80

    Resolved
    Part Number: BQ40Z80 Hi, TI expert A customer wants to use lithium iron phosphate 15A, 7s1p in Bq40z80 and has a related inquiry. - Battery used: Lithium iron phosphate 7S1P, 15A. Q1) Are there any examples related to settings? Q2) Additionally…
    • Resolved

  • BQ40Z80: BQ40Z80: PACK pin relation to wake-up/shutdown of chip

    Part Number: BQ40Z80 Hi, I have question related to the use of PACK pin to recover from Shut down mode. I am designing a button circuit to pass the Battery (Cell) voltage to PACK pin to recover from shut-down. However, I need to isolate my circuit…

  • BQ40Z80: BMS becomes unresponsive while not being used after unspecified amount of time.

    Part Number: BQ40Z80 Other Parts Discussed in Thread: EV2400 , BQSTUDIO , MSP430FR2475 Tool/software: Hello, We have a few battery packs of our own design based on the BQ40Z80 BMS which are becoming unresponsive after some unspecified amount of time…
    • Answered

  • BQ40Z80: about 7 series battery solution

    Resolved
    Part Number: BQ40Z80 Other Parts Discussed in Thread: BQ41Z90 Tool/software: Hi, 1. The customer is looking for a solution for a 7-cell battery (series). The customer already has experience using the BQ40Z80, but are there any application circuit examples…
    • Resolved

  • BQ40Z80: 1W Radio Causing Current Readings

    Part Number: BQ40Z80 Tool/software: We are seeing issues where if our 2.4Ghz 1W radio antenna is placed too close to the battery, the BQ40Z80 will start believing there is current being passed through. This is causing issues where the battery will falsely…

  • BQ40Z80: BQ40z80 RSOC jump after a period of standing

    Part Number: BQ40Z80 Other Parts Discussed in Thread: GPCCHEM Hi,TI's Expert I've met a issue about using BQ40z80, Here is the desciption. When I test the battery discharge from a HV status(like 90% RSOC) to LV status (like 10% RSOC) within a 0.5C…
    • Answered

  • BQ40Z80: Leaving few pins as Unconnected

    Resolved
    Part Number: BQ40Z80 Other Parts Discussed in Thread: BQSTUDIO Tool/software: Hello, If the IC is configured from the bqStudio software for LED and not connected LEDCNTLA, LEDCNTL B and LEDCNTL C on the PCB, i.e, not routed from the bq IC itself. Is there…
    • Resolved

  • BQ40Z80: 5S1P battery pack

    TI Thinks Resolved
    Part Number: BQ40Z80 Other Parts Discussed in Thread: BQ34Z100 Tool/software: Dear all, Is it possible to use this component to calculate the SOC of the closed 5S battery pack. In fact in my application I use a battery pack with integrated BMS but…

  • BQ40Z80: BQ40Z80 learning issue

    Part Number: BQ40Z80 Other Parts Discussed in Thread: GPCCHEM , BQSTUDIO Dear Support. I am using a BQ40Z80 with a 6S battery pack. I started a learning cycle after reading SLUA848. ChemID=1892 Unfortunately it did not work because after DSG…

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