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The thermistor is sampled for temperature measurement as shown in figure 9 of the datasheet. If you are measuring the VTB pin with a meter, it will measure about 0v. If you inspect the signal with an oscilloscope, you should see it pulse high…
Other Parts Discussed in Thread: BQ76930 , BQ77905 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。 https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1109550/bq77905-fault-sampling-timing 器件型号: BQ77905 …