STM32WB15CC datasheet(69/127 Pages) STMICROELECTRONICS

69 / 127 page

DS13258 Rev 4

69/127

STM32WB15CC

Electrical characteristics

115

6.3.6

Embedded voltage reference

The parameters in Table 30 are derived from tests performed under the ambient

temperature and supply voltage conditions summarized in Table 21: General operating

conditions.

VPVM3

VDDA peripheral voltage monitoring

Rising edge

1.61

1.65

1.69

Falling edge

1.6

1.64

1.68

Vhyst_PVM3

PVM3 hysteresis

IDD (PVM3)(2)

PVM3 consumption from VDD

µA

1. Continuous mode means Run/Sleep modes, or temperature sensor enable in Low-power run/Low-power sleep modes.

2. Specified by design, not tested in production.

3. BOR0 is enabled in all modes (except Shutdown) and its consumption is therefore included in the supply current

characteristics tables.

Table 29. Embedded reset and power control block characteristics (continued)

Symbol

Parameter

Conditions(1)

Min

Typ

Max

Unit

Table 30. Embedded internal voltage reference

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VREFINT

Internal reference voltage

–40 °C < TJ < +125 °C

1.182 1.212

1.232

tS_vrefint (1)

ADC sampling time when reading

the internal reference voltage

-4(2)

µs

tstart_vrefint

Start time of reference voltage

buffer when ADC is enable

12(2)

IDD(VREFINTBUF)

VREFINT buffer consumption from

VDD when converted by ADC

12.5

20(2)

µA

∆VREFINT

Internal reference voltage spread

over the temperature range

VDD = 3 V

7.5(2)

TCoeff

Temperature coefficient

–40 °C < TJ < +125 °C

50(2)

ppm/°C

ACoeff

Long term stability

1000 hours, TJ = 25 °C

300

1000(2)

ppm

VDDCoeff

Voltage coefficient

3.0 V < VDD < 3.6 V

250

1200(2)

ppm/V

VREFINT_DIV1

1/4 reference voltage

VREFINT

VREFINT_DIV2

1/2 reference voltage

VREFINT_DIV3

3/4 reference voltage

1. The shortest sampling time can be determined in the application by multiple iterations.

2. Specified by design, not tested in production.

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