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BQ25890H: 温度采集问题,把整块板子放入温箱,读寄存器正常,而用热风枪吹热敏电阻异常。

Part Number: BQ25890H


  温箱,读寄存器f_10_tspct,查找表对应的温度相差无几。而热风枪对着电池连接处吹时候,该寄存器温度一直为40多度。请问TI工程师,是否为风枪温度过快,bq25890H ADC不工作了。有其他检测方法没?

  • 您好,温度检测是通过热敏电阻,用热风枪对着电池连接处吹,增加的是板子的温度,对热敏电阻的影响可能没那么大。

    芯片规格书中介绍热关断的温度是160度。您是要检测温度可以将温箱的温度调节或者将热敏电阻换成可调电阻调节温度。