ACST12 STMicroelectronics, ACST12 Datasheet - Page 6

• Manufacturer Part Number: ACST12
• Description: Overvoltage protected AC switch
• Manufacturer: STMicroelectronics

Specifications of ACST12

• High Noise Immunity: static dV/dt > 2000 V/μs

Application information
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Application information
Typical application description
The ACST12 device has been designed to control medium power load, such as AC motors
in home appliances. Thanks to its thermal and turn off commutation performances, the
ACST12 switch is able to drive an inductive load up to 12 A with no turn off additional
snubber. It also provides high thermal performances in static and transient modes such as
the compressor inrush current or high torque operating conditions of an AC motor. Thanks
to its low gate triggering current level, the ACST1210-7 can be driven directly by a MCU
through a simple gate resistor as shown in
Figure 16. Compressor control – typical diagrams
AC Mains
Compressor with integrated e-starter
Power supply
Compressor
PTC
ACST
ACST
Driver
Gate
thermostat
Electronic
Doc ID 15238 Rev 4
1
Rg
logical circuitry
Electronic
starter
Figure
Compressor with external electronic drive
Power supply
AC Mains
16.
switch
Run
Driver
Gate
ACST
Compressor
PTC
Rg
ACST
ACST12
Rg
switch
Start