ACST4| Datasheet

ACST4, ACST4-7CB, ACST4-7CB-TR, ACST4-7CFP, ACST4-7CH, ACST4-7SB, ACST4-7SB-TR, ACST4-7SFP, ACST4-7SH

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ACST4
AC power switch
Main applications

AC static switching in appliance control systems Drive of low power high inductive or resistive loads like spray pump in dishwashers an in air-conditioners

OUT

G COM

G OUT COM

DPAK ACST4-7SB/CB
OUT

TO-220FPAB ACST4-7SFP/CFP

Features

Blocking voltage: VDRM /VRRM = 700 V Avalanche controlled: VCL typ = 1100 V Nominal conducting current : IT(RMS) = 4 A High surge current capability: 30 A for 20 ms full wave Gate triggering current: IGT < 10 mA or 25 mA Switch integrated driver High noise immunity: static dV/dt > 500 V/us Figure 1. Functional diagram
OUT
G OUT COM

IPAK ACST4-7SH/CH

Benefits

Enables equipment to meet IEC 61000-4-5 High off-state reliability with planar technology No external overvoltage protection needed Reduces the power component factor Interfaces directly with the microcontroller Direct interface with the microcontroller for the ACST4-7S (IGT < 10 mA)
COM G

Description
The ACST4 belongs to the AC power switch family built around the ASDTM technology. This high performance device is adapted to home appliances or inductrial systems and drives loads up to 4 A. The ACSTM 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.

TM: ASD and ACS are trademarks of STMicroelectronics.

July 2007

Rev 4

1/13
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