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STM32H7 Datasheet(PDF) 177 Page - STMicroelectronics |
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STM32H7 Datasheet(HTML) 177 Page - STMicroelectronics |
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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 -- - - 2 Ω Iload Static load current - - - - 4 mA 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 - 50 - ppm/ mA Tcoeff Temperature coefficient −40 °C < TJ < +125 °C - - - Tcoeff xVREFINT + 75 ppm/ °C PSRR Power supply rejection DC - - 60 - dB 100KHz - - 40 - 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) -- 8 - mA IDDA(VRE FBUF) VREFBUF consumption from VDDA ILOAD = 0 µA - - 15 25 µA ILOAD = 500 µA - - 16 30 ILOAD = 4 mA - - 32 50 1. Guaranteed by design. 2. 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 - 2 - mV/°C V30(3) Voltage at 30°C ± 5 °C - 0.62 - V tstart_run(1) Startup time in Run mode (buffer startup) - - 25.2 µs tS_temp(1) ADC sampling time when reading the temperature 9 - - Isens(1) Sensor consumption - 0.18 0.31 µA Isensbuf(1) Sensor buffer consumption - 3.8 6.5 |
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