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PDF ACST4 Data sheet ( Hoja de datos )
| Número de pieza | ACST4 | |
| Descripción | AC POWER SWITCH | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ACST4 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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®
ASD™
AC Switch Family
ACST4 Series
AC POWER SWITCH
MAIN APPLICATIONS
s AC static switching in appliance control systems
s Drive of low power high inductive or resistive
loads like
- spray pump in dishwashers
- fan in air-conditioners
FEATURES
s Blocking voltage : VDRM / VRRM = +/-700V
s Avalanche controlled : VCL typ = 1100 V
s Nominal conducting current : IT(RMS) = 4A
s High surge current capability: 30A for 20ms full
wave
s Gate triggering current : IGT < 10 mA or 25mA
s Switch integrated driver
s High noise immunity : static dV/dt >500V/µs
BENEFITS
s Enables equipment to meet IEC 61000-4-5
s High off-state reliability with planar technology
s No external overvoltage protection needed
s Reduces the power component factor
s Interfaces directly with the microcontroller
s Direct interface with the microcontroller for the
ACST4-7S (IGT < 10mA)
DESCRIPTION
The ACST4 belongs to the AC power switch family
built around the ASD™ technology. This high per-
formance device is adapted to home appliances or
inductrial systems and drives loads up to 4 A.
The ACS™ 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 stan-
dards.
OUT
G
COM
DPAK
ACST4-7SB/CB
G
OUT
COM
TO-220FPAB
ACST4-7SFP/CFP
FUNCTIONAL DIAGRAM
OUT
January 2003 - Ed: 3A
COM
G
1/9
1 page  
ACST4 Series
Fig. B: Overvoltage ruggedness test circuit for re-
sistive and inductive loads according to
IEC61000-4-5 standards.
R = 150Ω, L = 10µH, VPP = 2kV.
Fig. C: Current and Voltage of the ACST4 dur-
ing IEC61000-4-5 standard test with R, L & VPP .
SURGE VOLTAGE
AC LINE & GENERATOR
RL
VAC + VPP
OUT
ACST4
COM
G
RG = 220Ω
Fig. 1: Maximum power dissipation versus RMS
on-state current.
P(W)
5.0
4.5 α=180°
4.0
3.5
3.0
2.5
2.0
1.5
180°
1.0 α
α
0.5 IT(RMS)(A)
0.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Fig. 2-1: RMS on-state current versus case
temperature.
IT(RMS)(A)
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
α=180°
25
DPAK
TO-220FPAB
Tc(°C)
50 75
100 125
5/9
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet ACST4.PDF ] | |
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