关于这个 TS, 是个温度检测端口. 手册有这么一段话:
The bq27541 measures battery temperature via the TS input, in order to supply battery temperature status information to the fuel gauging algorithm and charger-control sections of the gauge. Alternatively, the gauge can also measure internal temperature via its on-chip temperature sensor, but only if the [TEMPS] bit of Pack Configuration register is cleared.
Regardless of which sensor is used for measurement, a system processor can request the current battery temperature by calling the Temperature( ) function (see Section Standard Data Commands, for specific information).
The thermistor circuit requires the use of an external 10Kohm thermistor with negative temperature coefficients, such as Semetic 103AT-type thermistor that connects between the Vcc and TS pins. Additional circuit information for connecting this thermistor to the bq27541 is shown in Section 4, Reference Schematic.
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