8/13/2019 New 600V AC Switches Bring Higher Capability
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New 600V AC switches bringhigher capability
New ACSTM series allows switching at highertemperatures and reduces gate drive consumption
The home appliance industry is shifting to electroniccontrol on a worldwide basis. Together with this trend,electronics can now cope with AC mains constraints wherehigh voltage robustness and transient voltage compatibility
are the key challenges.
STMicroelectronics, the leading thyristors and triacs
supplier, has designed ACS to control the numerous ACloads necessary for the appliance process. These ACswitches meet the requirements for reliability,compactness and mass production capability.
The new generation of 600V rated ACS ensure overallsystem reliability and efficiency, and can be directly
controlled by a microcontroller.
www.st.com/thyristors
Main features Load control of up to 0.2A (ACS102) and 0.8A
(ACS108)
Static dV/dt > 300V/s (ACS102) and > 500V/s
(ACS108)
Holding (IH) and latching (IL) current of 30mA max.
and 25mA max. respectively
Voltage capability increased to 600V
IGT< 5mA (ACS102) and < 10mA (ACS108)
Benefits Gate drive consumption decreased by 50%
Needs neither external protection snubber nor varistor
Overvoltage crowbar technology
Enables equipment to meet IEC 61000-4-5
Reduces component count up to 80%
Higher temperature specified up to 125C
Interfaces directly with the microcontroller
Common package tab connection allows connection
of several ACS on same cooling pad
Key markets and applications Wet appliances
Washing machines, dishwashers, dryers
Hot appliances Ovens, cooking ranges, coffee machines
Cold appliances Refrigerators, freezers, air conditioners
New ACS 600V comparison chart
+25%h
igher
capability
10timesbett
er
Symbol Test conditions QuadrantSensitivity
Unit03 1007 09
Symbol Test conditions Values UnitQuadrant
IGT VOUT=12V RL=33 II-III Max 10 mA
dV/dt VD=67% VRAM gate-open Tj=110C Min 625 V/s
IGT VOUT=12V RL=140 Tj=25C Max 10 mA
dV/dt VD=67% VRAM gate-open Tj=110C Min 500 V/s
IGT VD=12V RL=30 I-II-III-IV Max3 5 10 25
mA5 7 10 25dV/dt VD=67% VRAM gate-open Tj=110C Min 10 20 50 100 V/s
New ACS108 600V version (IGT=10mA)
Old ACS108 500V version (IGT=10mA)
A sensitive standard triac
8/13/2019 New 600V AC Switches Bring Higher Capability
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STMicroelectronics - June 2006 - Printed in Italy - All rights reservedThe STMicroelectronics corporate logo is a registered trademark of the STMicroelectronics group of companies. All other names are the property of their respective owners.
For selected STMicroelectronics sales offices fax:China +86 21 52574820; France +33 1 55489569; Germany +49 89 4605454; Italy +39 02 8250449; Japan +81 3 57838216; Singapore +65 6481 5124;
Sweden +46 8 58774411; Switzerland +41 22 9292900; United Kingdom and Eire +44 1628 890391; USA +1 781 861 2678
Full product information at www.st.com
Recycled and chlorine free paperOrder code: FLACS0606
ACS108-6Sx and ACS102-6Tx profile: towardssimplicityAfter six years experience with many key appliance
market players, the highly established ACS102-5Tx and
ACS108-5Sx have been re-designed to improve the
overall electrical performance of these high reliability
switches. The new versions are now launched as the
ACS102-6Tx and ACS108-6Sx with a voltage capability
(VDRM/VRRM) increased from 500V to 600V. This allows
the crowbar structure to protect the system at a higher
voltage level than the previous version, and the
robustness has been re-qualified because the higher
crowbar threshold voltage causes a higher energy than
the switch must sustain.
The static characteristics have also been improved. The
latching and holding levels have been drastically
reduced (50% of the previous version), allowing a more
optimized gate pulse control mode, especially in case of
lower power rated loads, thus helping to save energy.
The dynamic characteristics also show enhanced
performance. The switching capabilities and the
electrical noise immunity have been improved by
approximately 15%. This new performance gives a
higher guard margin in case of specific load control.
Continuous improvementACS and ACST devices are now well known in the
appliance world. The development of new products,
dedicated to specific loads, provides global kits to the
electronic designer who wants to provide robustness,
immunity and new functions in systems. In parallel with
the new device developments, the current versions of
ACS are re-designed to benefit from the continuous
design improvements in the technology.
ValveDrum motor
AC mains
Electromagnet
ACSTACSACS
Power supply
Cut-off relay
Valve
ACSTACS
Pump
ACSACS
AC
ControllerVDD
101
VSS
Vertical axis washer with AC switch devices
AC switches typical application
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