ACST4-7CH-TR View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
ACST4-7CH-TR Datasheet PDF : 13 Pages
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AC line switch basic application
2
AC line switch basic application
ACST4
The ACST4 device has been designed to switch on and off low power, but highly inductive or
resistive loads such as dishwashers spray pumps, and air-conditioners fan.
■ Pin COM: Common drive reference to connect to the power line neutral
■ Pin G: Switch Gate input to connect to the digital controller
■ Pin OUT: Switch Output to connect to the load
ACST4-7S triggering current has to be sunk from the gate pin G. The switch can then be
driven directly by logic level circuits through a resistor as shown on the typical application
diagram .
Thanks to its thermal and turn off commutation performances, the ACST4 switch is able to
drive with no turn off additional snubber an inductive load up to 4 A.
Figure 2. Typical application diagram
L
AC
MAINS
N
LOAD
L
M
R
OUT
ACST4
OUT
COM
G
- Vcc
ST72 MCU
4/13
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