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STM32L475VC 数据表(PDF) 157 Page - STMicroelectronics |
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STM32L475VC 数据表(HTML) 157 Page - STMicroelectronics |
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157 / 193 page  DocID027692 Rev 2 157/193 STM32L475xx Electrical characteristics 181 6.3.22 Temperature sensor characteristics 6.3.23 VBAT monitoring characteristics Table 75. TS characteristics Symbol Parameter Min Typ Max Unit TL(1) VTS linearity with temperature - ±1 ±2 °C Avg_Slope(2) Average slope 2.3 2.5 2.7 mV/°C V30 Voltage at 30°C (±5 °C)(3) 0.742 0.76 0.785 V tSTART (TS_BUF)(1) Sensor Buffer Start-up time in continuous mode(4) -8 15 µs tSTART(1) Start-up time when entering in continuous mode(4) -70 120 µs tS_temp(1) ADC sampling time when reading the temperature 5 - - µs IDD(TS)(1) Temperature sensor consumption from VDD, when selected by ADC -4.7 7 µA 1. Guaranteed by design. 2. Guaranteed by characterization results. 3. Measured at VDDA = 3.0 V ±10 mV. The V30 ADC conversion result is stored in the TS_CAL1 byte. Refer to Table 8: Temperature sensor calibration values. 4. Continuous mode means Run/Sleep modes, or temperature sensor enable in Low-power run/Low-power sleep modes. Table 76. VBAT monitoring characteristics Symbol Parameter Min Typ Max Unit R Resistor bridge for VBAT -39 - kΩ QRatio on VBAT measurement - 3 - - Er(1) 1. Guaranteed by design. Error on Q -10 - 10 % tS_vbat(1) ADC sampling time when reading the VBAT 12 - - µs Table 77. VBAT charging characteristics Symbol Parameter Conditions Min Typ Max Unit RBC Battery charging resistor VBRS = 0 - 5 - kΩ VBRS = 1 - 1.5 - |
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