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  • BQ27520-G4: Deviation of RM value in long-term storage

    Part Number: BQ27520-G4 When the battery is connected and stored for a long time with the power off, the battery becomes empty due to the standby current, but the RM value is close to a fully charged value. What is the cause? If the discharge current…

  • BQ27520-G4: How to program BQ27520-G4

    Part Number: BQ27520-G4 Other Parts Discussed in Thread: BQSTUDIO Hi team, please help my customer to program BQ27520-G4: I'm developing on board programming for their board with the device BQ27520-G4. The customer sent us the attached programming…

  • BQ27520-G4: RM value shifts due to long-term storage

    TI Thinks Resolved
    Part Number: BQ27520-G4 Other Parts Discussed in Thread: GPCRA0 , GPCRB When the battery is connected and stored for a long time with the power off, the battery becomes empty due to the standby current, but the RM value is close to a fully charged value…
    • Answered

  • BQ27520-G4: Programming Q&A parameters

    Resolved
    Part Number: BQ27520-G4 Other Parts Discussed in Thread: BQ27520EVM , EV2400 , BQSTUDIO Hello All, I have the EV2400 connected with the BQ27520EVM and I'm trying to complete the Q&A form in order to upload it to the gauge. However, when I try I receive…
    • Resolved
    • Answered

  • BQ27520-G4: bq27520-G4: Updating the bq275xx Firmware at Production

    Resolved
    Part Number: BQ27520-G4 Other Parts Discussed in Thread: BQSTUDIO Hi, I have read the application report SLUA541 and have a question about it. Section 1.4 of that application report says: "The data presented with this command matches the data read exactly…
    • Resolved

  • BQ27520-G4: Some questions about system side gauge

    TI Thinks Resolved
    Part Number: BQ27520-G4 Hello Sir: Did you have a guide line which discussion the difference between pack side gauge with system side gauge? If we want to use system side gauge, what the SOC and SOH accuracy will be after changed battery cell? For one…
    • Answered

  • RE: BQ27520-G4: Cannot finish learning cycle (Update status never become 01 after charge)

    Resolved
    Hello Jose, Jose Couso said: 1- Taper Current > Chg Current Threshold > Quit current 2- Dsg Current Threshold > Quit Current Thank you for this hint. In the failed learning, we set taper current = 30 mA, but other three threshold all larger than…
    • Answered

  • BQ27520-G4: accuracy and delay of current values

    Resolved
    Part Number: BQ27520-G4 What is the expected current measurement accuracy with a 0.01Ω resistor? For the average current calculated in the fuel gauge, what is the averaging time? What is the lag time in calculating the instantaneous current? …
    • Resolved

  • BQ27520-G4: Incorrect SOC & SOH Readings

    TI Thinks Resolved
    Part Number: BQ27520-G4 Hello, I was able to successfully generate a Chem ID and updated Ra tables for our BQ27520 using this TI app note . Unfortunately we have noticed a few discrepancies in our readings - 1. State of Charge: With a fully discharged…
    • Answered

  • RE: BQ27520-G4: BQ27520

    Resolved
    Hi Wyatt, We have a doubt regarding the fuel guage BQ27520-G4. How much time the fuel guage will take to update the voltage ,current & SOC values in the corresponding registers ? We had taken the voltage, current & SOC values in every 100 ms and we…

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