SPC584BX datasheet(63/142 Pages) STMICROELECTRONICS

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DS11701 Rev 4

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SPC584Bx

Electrical characteristics

4.15

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:

4.15.1

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 32. Power management regulators

Device

External

regulator

Internal

SMPS

regulator

Internal

linear

regulator

external

ballast

Internal

linear

regulator

internal

ballast

Auxiliary

regulator

Clamp

regulator

Internal

standby

regulator(1)

SPC584Bx

—

X(2)

1. Standby regulator is automatically activated when the device enters standby mode.

2. For compatibility purpose with SPC584Cx/SPC58ECx, or for the optimization of the power dissipation, the operability of the

device with external ballast can be used. The external ballast option is available only on specific devices, contact the local

sales.

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