Datasheet

Application information STCC08
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3 Application information
Figure 5. Application example with an MCU direct drive + ACS
The placement of a 100 nF capacitor between V
CC
and GND close to the STCC08 is
advised. SW is an electromechanical switch that is part of the application design, for
example, the water sensor in a washing machine.
3.1 Recommendations
The STCC08 is designed for 5 and 10 mA ACSs, ACSTs and TRIACs.
STCC08 basic application
The microcontroller reads the AC switch state from the AVF output of the STCC08. The
microcontroller can power-off the application driving a front-end relay.
Figure 6. Non-insulated application
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
R
AC
R
SHUNT
R
IG
SW
ACS
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
NEUTRAL
R
AC
R
SHUNT
SAFETY TURN OFF
R
IG
ACS
LINE
FRONT END RELAY
SW