SPC56EC64L8 datasheet(66/118 Pages) STMICROELECTRONICS

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Electrical Characteristics

SPC564Bxx - SPC56ECxx

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Doc ID 17478 Rev 4

4.8.3

Voltage monitor electrical characteristics

The device implements a Power-on Reset module to ensure correct power-up initialization,

as well as four low voltage detectors to monitor the VDD_HV_A and the VDD_LV voltage while

device is supplied:

●

POR monitors VDD_HV_A during the power-up phase to ensure device is maintained in

a safe reset state

●

LVDHV3 monitors VDD_HV_A to ensure device is reset below minimum functional supply

●

LVDHV5 monitors VDD_HV_A when application uses device in the 5.0 V±10% range

●

LVDLVCOR monitors power domain No. 1 (PD1)

●

LVDLVBKP monitors power domain No. 0 (PD0). VDD_LV is same as PD0 supply.

Note:

When enabled, PD2 (RAM retention) is monitored through LVD_DIGBKP.

IMREGINT

CC D

Main regulator module current

consumption

IMREG = 200 mA

—

IMREG = 0 mA

—

VLPREG

CC P Low power regulator output voltage

After trimming

—

1.23

—

ILPREG

SR —

Low power regulator current

provided to VDD_LV domain

—

——

ILPREGINT

Low power regulator module current

consumption

ILPREG = 15 mA;

TA = 55 °C

——

600

μA

—

ILPREG = 0 mA;

TA = 55 °C

—20—

IVREGREF

CC D

Main LVDs and reference current

consumption (low power and main

regulator switched off)

TA = 55 °C

—

μA

IVREDLVD12 CC D

Main LVD current consumption

(switch-off during standby)

TA = 55 °C

—

μA

IDD_HV_A

CC D

In-rush current on VDD_HV_A

(3)

during power-up

—

600(4)

VDD_HV_A = 3.3 V ± 10% / 5.0 V ± 10%, TA = −40 to 125 °C, unless otherwise specified.

All values need to be confirmed during device validation.

Assumption is VDD_HV_A is now supplying the external ballast. This current is the ballast inrush current.

Inrush current is seen more like steps of 600 mA peak. The startup of the regulator happens in steps of 50 mV in ~25 steps

to reach ~1.2 V VDD_LV. Each step peak current is within 600 mA

Table 23.

Voltage regulator electrical characteristics (continued)

Symbol

Parameter

Conditions(1)

Value(2)

Unit

Min

Typ

Max

SPC56EC64L8 Datasheet(PDF) 66 Page - STMicroelectronics

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