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Showing 51 results View by: Thread Post Sort by
  • BQ27421EVM-G1A: Problem With Learning Cycle.

    Swastik Ghosh
    Swastik Ghosh
    TI Thinks Resolved
    Part Number: BQ27421EVM-G1A Hi, I wanted to start a Learning Cycle on the BQ-27421G1A Battery Gas Gauge. Initially I discharged my battery at a C/5 Rate to 3300mV, and then let it relax for 6 Hours. At the end of 6 Hours, It gave us an error saying…
    • over 6 years ago
    • Power management
    • Power management forum
  • Compiler/BQ27421EVM-G1A: bq27421

    woon jeong
    woon jeong
    TI Thinks Resolved
    Part Number: BQ27421EVM-G1A Tool/software: TI C/C++ Compiler Hi In i2c communication, I got volatage and temp exactly. But AveraCurrent(0x10) respond FF 7F What's wrong? Thanks in advance?
    • over 7 years ago
    • Power management
    • Power management forum
  • BQ27421EVM-G1A: BQ27421

    BRIAN
    BRIAN
    TI Thinks Resolved
    Part Number: BQ27421EVM-G1A having issues with the sense resistor on this chip blowing. Have seen 4 failures in the last 3 weeks. What is the peak current rating for the sense resistor on this part? Can't locate it in the spec.
    • over 7 years ago
    • Power management
    • Power management forum
  • BQ27421EVM-G1A: Error Writing to data memory: Operation failed because initial read of all data failed

    Ganesh Sagaonkar
    Ganesh Sagaonkar
    Part Number: BQ27421EVM-G1A Other Parts Discussed in Thread: EV2400 While reading the all resistors from BQ27421EVM with EV2400, can not able to read the configuration details of the fuel gauge IC. and showing following error:
    • over 6 years ago
    • Power management
    • Power management forum
  • BQ27421EVM-G1A: Nacked CheckSum

    Zachary Thatcher
    Zachary Thatcher
    TI Thinks Resolved
    Part Number: BQ27421EVM-G1A Hello, I am attempting to program this gas gauge with a microcontroller and following the instructions laid out by a few manuals. I have successfully read all of the registers in the block that I want to edit and written…
    • over 7 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ27421EVM-G1A: Issue with remaining Capacity & full Charge Capacity reading

    Zahir Khan
    Zahir Khan
    Resolved
    Part Number: BQ27421EVM-G1A Other Parts Discussed in Thread: BQ27510 We are using removal battery of design Capacity 5200mAh. Finding issue while reading remainingCapacity & fullChargeCapacity. Now using the sample code for bq27421. Issue is when reading…
    • Resolved
    • over 7 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ27421EVM-G1A: Filtered and Compensated Capacity lags to account for programmed Design Capacity

    Zachary Thatcher
    Zachary Thatcher
    Resolved
    Part Number: BQ27421EVM-G1A Other Parts Discussed in Thread: BQSTUDIO Hello, I have been utilizing a gas gauge to keep track of the capacity in a 2600mAh battery. This means that I program the design capacity to be different from the non-volatile preprogrammed…
    • Resolved
    • over 6 years ago
    • Power management
    • Power management forum
  • BQ27421EVM-G1A: Storing Qmax and Ra Tables in NVM To Maintain Learned Data

    Zachary Thatcher
    Zachary Thatcher
    TI Thinks Resolved
    Part Number: BQ27421EVM-G1A All, I am attempting to redundantly ensure that I do not lose learned data about my battery when the battery is low. In case the gas gauge does lose battery, I was hoping to be able to reprogram in qmax and the Ra table values…
    • over 6 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ27421EVM-G1A: Unreliable ability to configure via I2C

    Zachary Thatcher
    Zachary Thatcher
    Resolved
    Part Number: BQ27421EVM-G1A Hello, I am using this gas gauge and configuring it on startup of a board via i2c. My issue is that sometimes the chip configures and other times it does not. It is seemingly random, and occasionally has to do with me plugging…
    • Resolved
    • over 7 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ27421EVM-G1A: bq27421-G1A / Parameter in Calibration class

    S.Satoshi
    S.Satoshi
    Resolved
    Part Number: BQ27421EVM-G1A Hi, I'd like to ask which parameter will be updated during operation in Calibration class. From my evaluation, I think that only Board Offset, Int Temp Offset and Pack V Offset are updated during operation as below. Is my…
    • Resolved
    • over 9 years ago
    • Power management
    • Power management forum
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