ACST2 datasheet(1/13 Pages) STMICROELECTRONICS

No. de pieza	ACST2

Descripción Electrónicos	Overvoltage protected AC switch

PDF	13 Pages

Scroll/Zoom	100%

Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

Página de inicio	http://www.st.com

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1 / 13 page

This is information on a product in full production.

May 2014

DocID13304 Rev 4

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ACST2

Overvoltage protected AC switch

Datasheet

- production data

Features

 Triac with overvoltage crowbar technology

 High noise immunity: static dV/dt > 500 V/µs

 ACST210-8FP, in the TO-220FPAB package,

provides insulation voltage rated at 1500 V rms

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

Applications

 AC on/off static switching in appliances and

industrial control systems

 Driving low power highly inductive loads like

solenoid, pump, fan, and micro-motor

Description

The ACST2 series belongs to the ACS™/ACST

power switch family. This high performance

device is suited 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 still shows a high electrical noise immunity

complying with IEC standards such as

IEC 61000-4-4 (fast transient burst test).

Figure 1. Functional diagram

TM: ACS is a trademark of STMicroelectronics

DPAK

CO M

G

OU T

TO -220FPA B

Table 1. Device summary

Symbol

Value

Unit

IT(RMS)

2A

VDRM/VRRM

800

V

IGT

10

mA

G

COM

OUT

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