ACST series Overvoltage protected AC switches VISUAL ZONE ACST Series ACST series combine robustness, reliability and straightforward design The home appliance industry is shifting to electronic control worldwide. Together with this trend, electronics can now handle AC mains constraints where high voltage robustness, and surge and transient voltage compatibility are the key challenges. ST has introduced a new 800 V ACST series to control the numerous AC loads necessary for appliances. These AC switches meet the requirements for system reliability and compactness. They are the perfect solution to replace relays, in refrigeration compressor control, for example, where they are connected to the AC mains 24 hours a day and are directly controlled by a microcontroller KEY FEATURES • Auto protected against AC line overvoltage surges • 150 °C operating temperature range • Symmetric blocking voltage at 800 V • 2 to 16 A current range • 2 ranges of IGT • 35 mA high immunity series (dV/dt ≥ 2000 V/µs) • 10 mA sensitive series defined at TJ = 125 °C. KEY BENEFITS • Enables compliance with IEC 61000‑4-4 and -4-5 disturbances • No need for additional components (RC network, MOV) • Easy control board design • Sensitive series allows direct drive from a MCU TARGET APPLICATIONS • Compressor control Refrigeration Air conditioning • Drum motor control • Washing machines • Dryers • Heating element in printers • Medium-power motor and heater control in industrial systems • • www.st.com/acswitch TYPICAL IEC 61000-4-5 SURGE VOLTAGE WAVEFORMS APPLICATION DIAGRAM EXAMPLES Universal motor Compressor AC mains Electronic 2 starter 1 logic 3 circuitry PTC ACST Power supply Rg Gate driver AC mains Motor direction setting 1.2/50 µs voltage surge V 0 MCU Motor speed ACST regulation 8/20 µs current surge I Rg 0 2 kV IEC 61000-4-5 overvoltage ruggedness MCU Vcc Drum motor in phase angle control mode Compressor on/off control ACST Out Com Vpeak = VCL 12V Electronic thermostat ACST Rotor Stator ACST – ROBUSTNESS MADE EASY Technical and standards requirements have led the design of ACST switches, and their parameters are now suitable for refrigeration compressor control and drum motor drives. Their performances have been validated through stringent structural reliability tests and specific functional reliability tests. As a result, ACST switches are now recognized as the best-in-class AC switches for longlife home appliance or industrial control applications. G ACST SERIES PRODUCT TABLE AC switch IT(RMS) (A) VDRM / VRRM (V) IGT (mA) dV/dt (V/µs) (dI//dt)c (A/ms) TJ max (ºC) Package5 Overvoltage self-protected switch, VCL = 850 V ACST210-8x 2 800 10 500 0.52 125 8, 4 ACST410-8x 4 800 10 500 22 125 8, 4 4 ACST435-8x 4 800 35 1000 5 125 8, 4 ACST610-8x4 6 800 10 500 3.52 125 4, 5, 6, 7 ACST830-8x4 8 800 30 2000 83 125 4, 5, 6 ACST1010-7x4 10 700 10 200 4.42 125 4, 5 ACST1210-7x 12 700 10 200 5.3 125 4, 5 ACST1035-8FP 10 800 35 4000/20001 103/51,3 150 4 ACST1235-8FP 12 800 35 4000/2000 1,2 12 /6 150 4 ACST1635-8FP 16 800 35 1000/3001 123/41,3 150 4 4 4 4 3 1 3 Notes:: 1. Specified at 125/150 °C 2. Snubber @ 15 V/µs 3. Without snubber 4. Suffix x is related to the package; see package column : 4 = FP, 5 = T, 6 = G, 7 = R, 8 = B 5. Package: 4 = TO-220FPAB (Fullpack 1500 VRMS isolated, UL 1557 certified), 5 = TO-220AB, 6 = D2PAK, 7 = I2PAK, 8 = DPAK © STMicroelectronics - November 2013 - Printed in United Kingdom - All rights reserved The STMicroelectronics corporate logo is a registered trademark of the STMicroelectronics group of companies All other names are the property of their respective owners Order code: FLACST1113 For more information on ST products and solutions, visit www.st.com/acswitch