STM32U535NET3QTR datasheet(223/278 Pages) STMICROELECTRONICS

223 / 278 page

DS14217 Rev 1

223/278

STM32U535xx

Electrical characteristics

253

5.3.20

Temperature sensor characteristics

5.3.21

VCORE monitoring characteristics

5.3.22

VBAT monitoring characteristics

Table 107. Temperature sensor characteristics

Symbol

Parameter

Min

Typ

Max

Unit

TL(1)

VSENSE linearity with temperature

1.3

°C

Avg_Slope(1)

Average slope

2.5

3.0

mV/°C

V30(2)

Voltage at 30°C (±1 °C)

700

752

800

∆(Vcontinuous -

Vsampling)(3)

Difference of voltage between continuous and

sampling modes(4)

–10/+4

tSTART

(TS_BUF)

(3)

Sensor buffer startup time

µs

tS_temp(3)

ADC sampling time when reading the temperature

IDD(TS)(3)

Temperature sensor consumption from VDD, when

selected by ADC

-14

µA

1. Evaluated by characterization. Not tested in production.

2. Measured at VREF+ = VDDA = 3.0 V ±10 mV. The V30 A/D conversion result is stored in the TS_CAL1 byte. Refer to

Table 16: Temperature sensor calibration values.

3. Specified by design. Not tested in production.

4. The temperature sensor is in continuous mode when the regulator is in range 1, 2 or 3. The temperature sensor is in

sampling mode when the regulator is in range 4, or when the device is in Stop 1 or Stop 2 mode.

Table 108. VCORE monitoring characteristics(1)

Symbol

Parameter

Min

Typ

Max

Unit

tS_VCORE

ADC sampling time when reading the VCORE

voltage

µs

1. Specified by design. Not tested in production.

Table 109. VBAT monitoring characteristics(1)

Symbol

Parameter

Min

Typ

Max

Unit

Resistor bridge for VBAT

4 × 25.6

kΩ

Ratio on VBAT measurement

Er(2)

Error on Q

-5

tS_VBAT(2)

ADC sampling time when reading the VBAT

µs

1. 1.58 V ≤ VBAT ≤ 3.6 V

2. Specified by design. Not tested in production.

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