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  • BQ40Z80: Support Required – I2C Series Resistor Failure in BQ40Z80RSMR Application

    Part Number: BQ40Z80 Tool/software: Hello TI Team, We are using the BQ40Z80RSMR in our application and interfacing it with the iWave (SMARC IMX8QMAEC) S5 and S7 I2C lines. We have added 33 Ω, 1/16 W series termination resistors on these I2C lines near…
    • Answered

  • BQ40Z80: BQ40Z80: Qmax not updating

    Resolved
    Part Number: BQ40Z80 Other Parts Discussed in Thread: BQSTUDIO , Tool/software: Hi, I have a battery in CF. I try to delete it but impossible. I have done a lot of charge/discharge cycles. 0% -> 100% -> 0% always wait for rest 100% -> 55% -> 100…
    • Resolved

  • BQ40Z80: BQ40Z80 is Register 0x0A reads the charging/discharging current, right?

    Part Number: BQ40Z80 Tool/software: Dear BQ40Z80 is Register 0x0A reads the charging/discharging current, right? Right now, without it charged, the reading is 65368.
    • Answered

  • BQ40Z80: Control BQ40z80 using MCU for some functionality

    Resolved
    Other Parts Discussed in Thread: BQ40Z80 Tool/software: 1. Can we configure the GPIO pins of the BQ40z80 to perform our specific task like enable/disable of charge/discharge ? I want them to communicate with MCU based on some conditions it needs to be…
    • Resolved

  • BQ40Z80: 6s1p battery

    Other Parts Discussed in Thread: BQ40Z80 , BQ76942 , BQ34Z100 , BQ25756 Tool/software: Hi experts! I'm looking for a standalone LiPo solution for a 6s1p battery pack. This should mean charger, BMS, and fuel gauge. As of now, I'm planning on using…

  • BQ40Z80: Alternative for CSD1854Q5B

    TI Thinks Resolved
    Part Number: BQ40Z80 Other Parts Discussed in Thread: CSD18536KTT , CSD18540Q5B Tool/software: Hello, Despite the CSD1854Q5B suggested to use with BQ40z80, it has 29A discharge current. Wanted to have 60A discharge current MOSFET, currently with 29A…

  • BQ40Z80: Review of schematic for 6s using BQ40Z80 for drone BMS

    Part Number: BQ40Z80 Other Parts Discussed in Thread: BQ7718 , BQ77207 Tool/software: Hello Anthony , Are there any changes in the input and the secondary protection of the bq40z80 schematic? It is for 6s, the EVM schematic was taken as the reference…

  • BQ40Z80: Questions regarding State of Health (SOH)

    Part Number: BQ40Z80 Tool/software: During battery aging tests, it was observed that the Full Charge Capacity (FCC) gradually decreases as the number of aging cycles increases. However, the State of Health (SOH) behaves abnormally. Some batteries consistently…

  • BQ40Z80: FUSE enabled when connected to load

    Part Number: BQ40Z80 Tool/software: Hello, I have connected my board with Bq40z80 to load, it was not powering on. So, checked in BQ studio the FUSE pin has enabled. This has happened with two boards same case. Why is that?

  • BQ40Z80: MOSFET Heating after 30A

    Part Number: BQ40Z80 Other Parts Discussed in Thread: CSD18540Q5B Tool/software: I am currently working designing a board using a BQ40z80.The load applied is of max 60A. I have used recommended MOSFET CSD18540Q5B, This supports 29A continuous drain according…

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