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PDF ACST8-8C Data sheet ( Hoja de datos )
| Número de pieza | ACST8-8C | |
| Descripción | OVER VOLTAGE PROTECTED AC POWER SWITCH | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ACST8-8C (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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®
ASD™
AC Switch Family
ACST8-8C
OVER VOLTAGE PROTECTED
AC POWER SWITCH
MAIN APPLICATIONS
s AC static switching in appliance & industrial
control systems
s Washing machine with bi-rotational induction
motor drive
s Induction motor drive for:
- refrigerator / freezer compressor
- air conditioning compressor
FEATURES
s VDRM / VRRM = +/- 800V
s Avalanche controlled device
s IT(RMS) = 8A with TCASE = 90 °C
s High noise immunity: static dV/dt > 750 V/µs
s Gate triggering current : IGT < 30 mA
s Snubberless turn off commutation:
(dI/dt)c > 4.5A/ms
s TO-220FPAB package
G
OUT
COM
TO-220FPAB
FUNCTIONAL DIAGRAM:
OUT
BENEFITS
s Enables equipment to meet EN61000-4-5
standard
s High off-state reliability with planar technology
s Need no external overvoltage protection
s Reduces the power component count
DESCRIPTION
The ACST8-8C 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 an induction motor
up to 8A.
This ACST 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 IEC61000-4-5 standards.
G
COM
January 2002 - Ed: 4B
1/8
1 page  
ACST8-8C
AC LINE TRANSIENT VOLTAGE RUGGEDNESS
The ACST8-8C switch is able to safely withstand the AC line transient voltages either by clamping the low
energy spikes or by breaking over under high energy shocks.
The test circuit in Figure A is representative of the ACST application and is used to test the ACST switch
according to the IEC61000-4-5 standard conditions. Thanks to the load impedance, the ACST switch with-
stands voltage spikes up to 2 kV above the peak line voltage by breaking over safely. Such non repetitive
testing can be done 10 times on each AC line voltage polarity.
Fig. A: Overvoltage ruggedness test circuit for resistive and inductive loads
according to IEC61000-4-5 standard R = 47Ω, L = 10µH & VPP = 2kV
SURGE VOLTAGE
AC LINE & GENERATOR
RL
VAC + VPP
OUT
G
COM
Fig. 1: Maximum power dissipation versus RMS
on-state current.
P(W)
11
10 α=180°
9
8
7
6
5
4
3 180°
2α
α
1 IT(RMS)(A)
0
012345678
Fig. 2-1: RMS on-state current versus case
temperature.
IT(RMS)(A)
9
8
7
6
5
4
3
2
1
0
0 25
α=180°
Tc(°C)
50 75
100 125
5/8
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet ACST8-8C.PDF ] | |
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