The 600V-rated ACS family of switches is built with ST’s proprietary Application Specific Devices process technology, which enables the integration of both over-voltage protection circuitry, and RC-snubber external components. The ACS family helps users save space within electronic
boards while meeting the requirements of the latest home-appliance energy-saving and Electromagnetic Compatibility (EMC) standard for testing and measurement techniques such as IEC 61000-4-5.
Other major benefit of these ACS devices is the crowbar structure, which starts to protect the system at a higher voltage level than the previous version. As a result, the devices’ robustness has been
re-qualified to enable the switches to safely sustain a higher level of energy.
Designers using the new ACSes will be able to cut the cost of their appliances by reducing component count up to 80% and by avoiding external over-voltage suppressors. Appliance design will also be simplified by enabling the ACSes to be directly driven from microcontrollers.
The ACS102 is available in both TO-92 and SO-8 ECOPACK® packages, while the ACS108 is assembled in TO-92 and SOT-223 ECOPACK® packages.
In production now, the ACS102 and ACS108 cost $0.23 and $0.25, respectively, in 10,000 unit quantities.