®
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ACST8
November 2004
MAIN APPLICATIONS
■ AC static switching in appliance & industrial
control systems
■ Washing machine with bi-rotational induction
motor drive
■ Induction motor drive for:
- refrigerator / freezer compressor
- air conditioning compressor
FEATURES
■ V
DRM
/V
RRM
= +/- 800V
■ Avalanche controlled device
■ I
T(RMS)
= 8A with T
CASE
= 90 °C
■ High noise immunity: static dV/dt > 750 V/µs
■ Gate triggering current : I
GT
< 30 mA
■ Snubberless turn off commutation:
(dI/dt)c > 4.5A/ms
BENEFITS
■ Enables equipment to meet EN61000-4-5
standard
■ High off-state reliability with planar technology
■ Need no external overvoltage protection
■ Reduces the power component count
DESCRIPTION
The ACST8-8C belongs to the AC power switch
family built around the ASD
TM
technology. This
high performance device is adapted to home appli-
ances or industrial systems and drives an induc-
tion motor up to 8A.
This ACST switch embeds a triac structure with a
high voltage clamping device to absorb the induc-
tive turn off energy and withstand line transients
such as those described in the IEC61000-4-5
standards.
OVER VOLTAGE PROTECTED
AC POWER SWITCH
COM
OUT
OUT
G
TO-220FPAB
ACST8-8CFP
TO-220AB
ACST8-8CT
G
OUT
COM
D
2
PAK
ACST8-8CG
COM
OUT
G
Table 1: Order Codes
Part Number Marking
ACST8-8CFP
ACST88CACST8-8CT
ACST8-8CG
Figure 1: Functional Diagram
G
COM
OUT
TM: ASD is a trademark of STMicroelectronics.
REV. 6
ASD™
(AC Switch Family)