Datasheet

Electrical characteristics STM32L476xx
202/270 DS10198 Rev 8
6.3.23 Temperature sensor characteristics
6.3.24 V
BAT
monitoring characteristics
Table 87. 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 Start-up time in continuous mode
(4)
-815µs
t
START
(1)
Start-up 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 ADC
-4.77 µA
1. Guaranteed by design.
2. Guaranteed by characterization results.
3. Measured at V
DDA
= 3.0 V ±10 mV. The V
30
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 88. V
BAT
monitoring characteristics
Symbol Parameter Min Typ Max Unit
R Resistor bridge for V
BAT
-39-k
QRatio on V
BAT
measurement - 3 - -
Er
(1)
1. Guaranteed by design.
Error on Q -10 - 10 %
t
S_vbat
(1)
ADC sampling time when reading the VBAT 12 - - µs
Table 89. V
BAT
charging characteristics
Symbol Parameter Conditions Min Typ Max Unit
R
BC
Battery
charging
resistor
VBRS = 0 - 5 -
k
VBRS = 1 - 1.5 -
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