• 状态 TI Thinks Resolved
  • 已锁定 已锁定
  • 回复 2 回复
  • 答案 1 答案
  • 订户 55 订户
  • 视图 155 视图
  • 用户 0 会员在此处
选项
选项
相关

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BQ25730: 温度检测

zhang jiayi
Prodigy 20 points
Part Number: BQ25730

您好

        关于BQ25730RSNR芯片，目前我们板子正在进行软件调试阶段，咨询您一个问题，BQ25730RSNR芯片是否有温度自检功能，是否支持温度实时数值读取，帮忙指出寄存器，我只看到有个最高温阈值报警的策略，所以充电时靠温度定义CC-CV是否可行，CC-CV能否通过别的策略定义，解答这个疑问，谢谢

  • 0
    TI__Mastermind 36825 points

    您好

    已经收到了您的案例，调查需要些时间，感谢您的耐心等待

  • 0
    TI__Mastermind 36825 points

    您好

    The WQFN package has low thermal impedance, which provides good thermal conduction from the silicon to
    the ambient, to keep junction temperatures low. As added level of protection, the charger converter turns off for
    self-protection whenever the junction temperature reaches the 155°C. The charger stays off until the junction
    temperature falls below 135°C. During thermal shut down, the REGN LDO current limit is reduced to 16 mA and
    stays on. When the temperature falls below 135°C, charge can be resumed with soft start.
    When thermal shut down is triggered, TSHUT status bit will be triggered. This status bit keep triggered until host
    read to clear it. If TSHUT is still present during host read, then this bit will try to be cleared when host read but
    finally keep triggered because TSHUT still exists.
    根据这个的说法无法达到您的需求。
    zhang jiayi 说：
    所以充电时靠温度定义CC-CV是否可行，CC-CV能否通过别的策略定义

    不建议通过如此的方式来测温。