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SPC58NH84C3 bảng dữ liệu(PDF) 65 Page - STMicroelectronics

tên linh kiện SPC58NH84C3
Giải thích chi tiết về linh kiện  SPC58 H Line - 32 bit Power Architecture automotive MCU Triple z4 cores 200 MHz, 10 MBytes Flash, HSM, ASIL-D
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SPC58EHx, SPC58NHx
Electrical characteristics
74
4.14
Power management
The power management module monitors the different power supplies as well as it
generates the required internal supplies. The device can operate in the following
configurations:
4.14.1
Power management integration
Use the integration schemes provided below to ensure the proper device function,
according to the selected regulator configuration.
The internal regulators are supplied by VDD_HV_IO_MAIN supply and are used to generate
VDD_LV supply.
Place capacitances on the board as near as possible to the associated pins and limit the
serial inductance of the board to less than 5 nH.
It is recommended to use the internal regulators only to supply the device itself.
Table 30. Power management regulators
Device
External
regulator(1)
Internal
SMPS
regulator
Internal
linear
regulator
external
ballast
Internal
linear
regulator
internal
ballast
Auxiliary
regulator(2)
Clamp
regulator(2)
Internal
standby
regulator(3)
SPC58EHx
SPC58NHx
X—X—X
X
X
1. The application can select between the internal or external regulator mode, by controlling the EXTREG_SEL pin of the
device. If EXTREG_SEL is connected to VDD_HV_IO_MAIN, the external regulator mode is selected.
2. In external regulator mode, the auxiliary and clamp regulators can be optionally enabled, to support the compensation of
overshoots and undershoots in the supply. In internal regulator mode, the auxiliary and clamp regulators are always active.
3. Standby regulator is automatically activated when the device enters standby mode.



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