STCC08

Application information

9/13

This function is effective whatever the drive and the nature of the load.

Figure 7.

ACS benefits

during an AC line over-voltage. This provides a robust solution and allows setting high

maximum over-voltage.

STCC08 AVF alarms configuration

Figure 8.

Open load and Short circuit ACS discrimination

open load failure. See Table 9.

AC

G

NEUTRAL

R

AC1

ACS

R

AC2

V

CC

V

AC

G

NEUTRAL

R

AC1

ACS

R

AC2

V

CC

V

AVF

V

CC

GND

R

IG

AC

IN

G

POWER SWITCH

SIGNAL SHAPING

AVF DRIVER

GATE DRIVER

+

-

MCU

3.3V to 5V

V

CC

V

CC

AVF

GND

LOAD

LINE

NEUTRAL

ACS