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STM32WB55 Datasheet(PDF) 155 Page - STMicroelectronics

Part # STM32WB55
Description  Multiprotocol wireless 32-bit MCU Arm®-based Cortex®-M4 with FPU, Bluetooth® 5.2 and 802.15.4 radio solution
PDF  193 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32WB55 Datasheet(HTML) 155 Page - STMicroelectronics

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DS11929 Rev 11
155/193
STM32WB55xx STM32WB35xx
Electrical characteristics
169
6.3.23
Temperature sensor characteristics
6.3.24
VBAT monitoring characteristics
Table 85. 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 11:
Temperature sensor calibration values.
4.
Continuous mode means Run/Sleep modes, or temperature sensor enable in Low-power run/Low-power sleep modes.
Table 86. VBAT monitoring characteristics(1)
1. 1.55 < VBAT < 3.6 V.
Symbol
Parameter
Min
Typ
Max
Unit
R
Resistor bridge for VBAT
-3 x 39
-
kΩ
QRatio on VBAT measurement
-
3
-
-
Er(2)
2. Guaranteed by design.
Error on Q
-10
-
10
%
tS_vbat(2)
ADC sampling time when reading VBAT
12
-
-
µs
Table 87. 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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