ACST2| Datasheet

ACST2, ACST2-8SB, ACST2-8SB-TR, ACST2-8SFP

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ACST2 Series
AC Switch family Alternating current switch
Main features
Symbol IT(RMS) VDRM/VRRM IGT

OUT

Value 2 800 10

Unit
COM

A V mA
G OUT COM

Overvoltage crowbar technology High noise immunity: static dV/dt > 500 V/us

TO-220FPAB ACST2-8SFP

DPAK ACST2-8SB

The ACST2-8SFP in the TO-220FPAB package provides insulation voltage rated at 1500VRMS

Benefits

Enables equipment to meet IEC 61000-4-5 High off-state reliability with planar technology Needs no external overvoltage protection Reduces component count Interfaces directly with the micro-controller High immunity against fast transients described in IEC 61000-4-4 standards

Main application

AC ON/OFF static switching in appliances & industrial control systems Drive of low power highly resistive or inductive loads like: solenoid, pump, fan, micro-motor

Order code
Part number ACST2-8SFP ACST2-8SB Marking ACST28S ACST28S

Description
The ACST2 series belongs to the AC power switch family built around the ASD technology. This high performance device is adapted to home appliances or industrial systems and drives loads up to 2 A. This ACST2 switch embeds a Triac structure with a high voltage clamping device to absorb the inductive turn-off energy and withstand line transients such as those described in the IEC 61000-4-5 standards. The component needs a low gate current to be activated (IGT < 10 mA) and in the mean time provides a high electrical noise immunity such as those described in the IEC 61000-4-4 standards.

Functional diagram
OUT

COM

March 2007

Rev 1

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