ACST4 Просмотр технического описания (PDF) - STMicroelectronics
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ACST4 Datasheet PDF : 13 Pages
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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
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/µs
OUT
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COM
DPAK
ACST4-7SB/CB
OUT
G
OUT
COM
TO-220FPAB
ACST4-7SFP/CFP
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)
Figure 1. Functional diagram
OUT
Description
COM
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The ACST4 belongs to the AC power switch
family built around the ASD™ technology. This
high performance 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
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
www.st.com
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