STM32H7 datasheet(177/357 Pages) STMICROELECTRONICS

177 / 357 page

DS12110 Rev 10

177/357

STM32H742xI/G STM32H743xI/G

Electrical characteristics (rev Y)

320

6.3.23

Temperature sensor characteristics

esr

Equivalent Serial

Resistor of CL

Ω

Iload

Static load current

Iline_reg

Line regulation

2.8 V ≤ VDDA ≤ 3.6 V

Iload = 500 µA

200

ppm/V

Iload = 4 mA

100

Iload_reg

Load regulation

500 µA ≤ ILOAD ≤ 4 mA

Normal Mode

ppm/

Tcoeff

Temperature coefficient −40 °C < TJ < +125 °C

Tcoeff

xVREFINT

+ 75

ppm/

°C

PSRR

Power supply rejection

100KHz

tSTART

Start-up time

CL=0.5 µF

300

µs

CL=1 µF

500

CL=1.5 µF

650

IINRUSH

Control of maximum

DC current drive on

VREFBUF_OUT during

startup phase(3)

IDDA(VRE

FBUF)

VREFBUF

consumption from

VDDA

ILOAD = 0 µA

µA

ILOAD = 500 µA

ILOAD = 4 mA

1. Guaranteed by design.

In degraded mode, the voltage reference buffer cannot accurately maintain the output voltage (VDDA−drop voltage).

3. To properly control VREFBUF IINRUSH current during the startup phase and the change of scaling, VDDA voltage should be in

the range of 1.8 V-3.6 V, 2.1 V-3.6 V, 2.4 V-3.6 V and 2.8 V-3.6 V for VSCALE = 011, 010, 001 and 000, respectively.

Table 91. VREFBUF characteristics(1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Table 92. Temperature sensor characteristics

Symbol

Parameter

Min

Typ Max

Unit

TL(1)

1. Guaranteed by design.

VSENSE linearity with temperature

±3

°C

Avg_Slope(2) Average slope

mV/°C

V30(3)

Voltage at 30°C ± 5 °C

0.62

tstart_run(1)

Startup time in Run mode (buffer startup)

25.2

µs

tS_temp(1)

ADC sampling time when reading the temperature

Isens(1)

Sensor consumption

0.18 0.31

µA

Isensbuf(1)

Sensor buffer consumption

3.8

6.5

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