ACST12 查看數據表（PDF） - STMicroelectronics

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ACST12

Transient protected AC power switch

STMicroelectronics 

Application information

2

Application information

ACST12

2.1

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, with no turn off additional snubber, an inductive load up to

12 A. 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 ACST12-7S can be driven directly by a MCU through a

simple gate resistor as shown in Figure 16.

Figure 16. Compressor control – typical diagram

Compressor

Compressor

AC Mains

PTC

ACST

Electronic

starter

1 logical circuitry

ACST

Electronic

thermostat

Rg

Power supply

Gate

Driver

AC Mains

PTC

Run

switch

ACST

ACST

Start

switch

Rg

Rg

Power supply

Gate

Driver

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