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Showing 41 results View by: Thread Post Sort by
  • BQ27520EVM: 10°C low temperature failure

    Cherry Zhou
    Cherry Zhou
    Part Number: BQ27520EVM Hi team, The phenomenon: 1. The device cannot turn on and the battery is fully charged in a low temperature (10°C) environment. 2. The charge through the bq27520 is 0 and the temperature is 3 degrees. 3. Scope: Jiangxi province…
    • over 3 years ago
    • Power management
    • Power management forum
  • RE: BQ27520EVM: SOC and capacity decreasing too fast

    Dominik Hartl11
    Dominik Hartl11
    Your Ra Base value is extremely high. 307 equals 307*4 = 1228mOhm. With a load of 1494mA (avg I last run) and a full charge OCV of 4200mV, this would cause an immediate voltage drop to 4200mV - 1835mV = 2365mV, which is below Terminate Voltage + Delta…
    • over 3 years ago
    • Power management
    • Power management forum
  • BQ27520EVM: Chemistry ID selection

    Petr Mlynar
    Petr Mlynar
    TI Thinks Resolved
    Part Number: BQ27520EVM Other Parts Discussed in Thread: BQSTUDIO Hi, I would need a help with chemistry id selection for my battery. I use this battery https://www.gebattery.com.cn/product/showproduct.php?id=151 with 4.35V. I did a relax-discharge-relax…
    • over 4 years ago
    • Power management
    • Power management forum
  • BQ27520EVM: Some details questions about the learning cycle of BQ27520EVM

    user6300248
    user6300248
    TI Thinks Resolved
    Part Number: BQ27520EVM Hollow. The following is the learning cycle enumerated by the users guide of BQ27520EVM . These questions are also referenced in another document SLUA903–July 2018 - Achieving The Successful Learning Cycle。 The original steps…
    • over 5 years ago
    • Power management
    • Power management forum
  • BQ27520EVM: 关于BQStudio 配合 BQ27520EVM 进行电池曲线学习的几个问题 Several questions about BQStudio and BQ27520EVM for battery curve learning

    user6300248
    user6300248
    TI Thinks Resolved
    Part Number: BQ27520EVM Other Parts Discussed in Thread: BQSTUDIO , , BQ27520-G4 TI 技术支持您好,我已经准备好BQStudio 以及 EVM的环境,正在进行下一步的学习,有几个问题想咨询一下您: Hi TI technical support, I have prepared the BQStudio and EVM environment, and are learning the next step. I have…
    • over 5 years ago
    • Power management
    • Power management forum
  • BQ27520EVM: battery SOC suddenly drops to 0

    user6300248
    user6300248
    TI Thinks Resolved
    Other Parts Discussed in Thread: BQ27520EVM , GPCCHEM , BQSTUDIO Hello technical support: At present, we have successfully learned the battery charge curve on the bq27520evm. Were also strictly according to the learning cycle document and get the dffs with…
    • over 5 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ27520EVM: Failing to obtain update status 01

    Silvio Waldmann
    Silvio Waldmann
    Resolved
    Part Number: BQ27520EVM Other Parts Discussed in Thread: BQSTUDIO , , GPCCHEM Hello, I have been trying to do the learning cycle on a Panasonic NCR18650B using the BQ27520EVM and bqstudio. Following the several guides available I am unsure what can still…
    • Resolved
    • over 5 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ41Z50: Confusion about the relationship between InitialBatteryMode and BatteryMode register, and ability to change BatteryMode on the fly

    Kevin Banks
    Kevin Banks
    Resolved
    Part Number: BQ41Z50 Other Parts Discussed in Thread: EV2400 , BQSTUDIO , , , BQ27520EVM , BQ40Z50 Tool/software: Note - all references to issuing commands and displaying data refer to the use of BQStudio and an EV2400. Also just to provide context, I have…
    • Resolved
    • 8 months ago
    • Power management
    • Power management forum
  • BQ27520EVM: Chemical ID measurement evaluation

    Eetu Nevalainen
    Eetu Nevalainen
    TI Thinks Resolved
    Part Number: BQ27520EVM Hi, we performed the measurement for our battery but didn't get a close matching chemical id. Before we plan sending the battery to you for evaluation could you check that the measurement has been done according to the TI guidelines…
    • over 6 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ27520EVM: Learning Cycle Success criteria and Golden Firmware generation

    Edward Hunckler
    Edward Hunckler
    Resolved
    Part Number: BQ27520EVM Hi, I have been recently working on configuring a bq27520 chip in a project I am working on. I have been using the EVM to run chemical ID tests and learning cycle tests in an effort to generate a golden binary for programming the…
    • Resolved
    • over 6 years ago
    • Power management
    • Power management forum
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