Datasheet

Table Of Contents
Electrical characteristics STM32WLE5J8/JB/JC
114/135 DS13105 Rev 4
5.3.20 Temperature sensor characteristics
5.3.21 V
BAT
monitoring characteristics
Table 75. TS characteristics
Symbol Parameter Min Typ Max Unit
T
L
(1)
V
TS
linearity with temperature - ±1 ±2 °C
Avg_Slope
(2)
Average slope 2.3 2.5 2.7 mV / °C
V
30
Voltage at 30 °C (±5 °C)
(3)
0.742 0.76 0.785 V
t
START
(TS_BUF)
(1)
Sensor buffer startup time in continuous mode
(4)
-815µs
t
START
(1)
Startup time when entering in continuous mode
(4)
-70120µs
t
S_temp
(1)
ADC sampling time when reading the temperature 5 - - µs
I
DD
(TS)
(1)
Temperature sensor consumption from V
DD
, when
selected by the ADC
-4.77 µA
1. Guaranteed by design.
2. Guaranteed by characterization results.
3. Measured at V
DDA
= 3.3 V ±10 mV. The V
30
ADC conversion result is stored in the TS_CAL1 byte. Refer to
Table 12: Temperature sensor calibration values.
4. Continuous mode means Run and Sleep modes, or temperature sensor enable in LPRun and LPSleep modes.
Table 76. V
BAT
monitoring characteristics
(1)
Symbol Parameter Min Typ Max Unit
R Resistor bridge for V
BAT
-39-k
Q Ratio on V
BAT
measurement - 3 - -
E
r
(2)
Error on Q -10 - 10 %
t
S_vbat
(2)
ADC sampling time when reading V
BAT
12 - - µs
1. 1.55 V < V
BAT
< 3.6 V.
2. Guaranteed by design.
Table 77. V
BAT
charging characteristics
Symbol Parameter Conditions Min Typ Max Unit
R
BC
Battery charging resistor
VBRS = 0 - 5 -
k
VBRS = 1 - 1.5 -