DMA12 datasheet(2/2 Pages) MICROSEMI

Part #	DMA12

Description	IGBTVSTM AC LINE TRANSIENT VOLTAGE SUPPRESSOR

PDF	2 Pages

Scroll/Zoom	100%

Manufacturer	MICROSEMI [Microsemi Corporation]

Direct Link	http://www.microsemi.com

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2 / 2 page

Application Notes for IGBTVS

Microsemi’s IGBTVSTM protector is intended for transients produced during load switching with a duty cycle not

to exceed .01%. For protecting against transients produced when IGBTs are applied as ac power switches and

over current protectors. Stored energy in the line and load produces damaging transient voltages during power

down or fault interrupt. Microsemi’s IGBTVSTM transient suppressor protects from nanosecond rise transients

with surge currents to 200A, 1.5/50µs. Typical application on a 3

power line is illustrated below.

Each control module contains IGBTs,

gate drive and two IGBTVS

TM as

illustrated by #2 above

3. COMPOSITE 3 PHASE PROTECTION

AC IN

LINE R & L

LOAD

2. DETAILS OF SINGLE PHASE PROTECTION

GATE DRIVE

IGBT

LINE

IGBT

IGB

TVS

LOAD

CONTROL

MODULE

LINE R & L

1. CONCEPT

ac POWER FROM

SERVICE ENTRY

LOAD

TVS

IGBT

LINE R & L

DMA12 Datasheet(PDF) 2 Page - Microsemi Corporation