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SPC58EE80C3 データシート(PDF) 76 Page - STMicroelectronics |
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SPC58EE80C3 データシート(HTML) 76 Page - STMicroelectronics |
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76 / 154 page  Electrical characteristics SPC58EEx, SPC58NEx 76/154 DS11646 Rev 4 3.16 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: 3.16.1 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 38. Power management regulators Device External regulator(1) Internal SMPS regulator (2) Internal linear regulator external ballast Internal linear regulator internal ballast Auxiliary regulator(3) Clamp regulator(3) Internal standby regulator(4) SPC58NE84E7 X X — — — — — SPC58NE84C3 X — X — X X X SPC58NE84H0 X 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. Parts with SMPS enabled can only be used in this mode and EXTREG_SEL has to be set to VSS. 3. 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. In SMPS regulator mode, the auxiliary and clamp regulators cannot be enabled. In parts packaged with LQFP176, the auxiliary and clamp regulators cannot be enabled. 4. Standby regulator is automatically activated when the device enters standby mode. Standby mode is not supported if the device operates in External regulator mode or SMPS regulator mode. Emulation Device calibration and trace features are not supported in standby mode. |
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