ACS108 Overvoltage protected AC switch (ACS™) Datasheet - production data Description COM The ACS108 belongs to the AC switch range (built with A. S. D.® technology). This high performance switch can control a load of up to 0.8 COM G COM A. The ACS108 switch includes an overvoltage OUT G OUT crowbar structure to absorb the inductive turn-off TO-92 SOT-223 energy, and a gate level shifter driver to separate ACS108-6SA ACS108-6SN the digital controller from the main switch. It is ACS108-8SA ACS108-8SN triggered with a negative gate current flowing out of the gate pin. Features Figure 1. Functional diagram OUT  Enables equipment to meet IEC 61000-4-5 surge with overvoltage crowbar technology  High noise immunity against static dV/dt and G IEC 61000-4-4 burst  Needs no external protection snubber or varistor COM  Reduces component count by up to 80% and COM Common drive reference to connect Interfaces directly with the micro-controller to the mains OUT Output to connect to the load. G Gate input to connect to the controller  Common package tab connection supports through gate resistor connection of several alternating current switches on the same cooling pad Table 1. Device summary  V gives headroom before clamping then CL crowbar action Symbol Value Unit I 0.8 A T(RMS) Applications V , V 600 and 800 V DRM RRM  Alternating current on/off static switching in IGT 10 mA appliances and industrial control systems  Driving low power high inductive or resistive loads like: – relay, valve, solenoid, dispenser, – pump, fan, low power motor, door lock – lamp ®: A.S.D. is a registered trademark of STMicroelectronics TM: ACS is a trademark of STMicroelectronics October 2013 DocID6518 Rev 5 1/13 This is information on a product in full production. www.st.com

Characteristics ACS108 1 Characteristics Tab le 2. Absolute maximum ratings (T = 25 °C, unless otherwise specified) amb Symbol Parameter Value Unit T = 64 °C 0.45 A amb TO-92 T = 76 °C lead I On-state rms current (full sine wave) T(RMS) SOT-223 Tamb = 76 °C 0.8 A S = 5 cm2 T = 104 °C tab Non repetitive surge peak on-state current F = 60 Hz t = 16.7 ms 13.7 I A TSM (full cycle sine wave, Tj initial = 25 °C) F = 50 Hz t = 20 ms 13 I2t I²t Value for fusing t = 10 ms 1.1 A2s p Critical rate of rise of on-state current dI/dt F = 120 Hz T = 125 °C 100 A/µs I = 2xI , t  100 ns j G GT r V Non repetitive mains peak mains voltage(1) 2 kV PP I Peak gate current t = 20 µs T = 125 °C 1 A GM p j V Peak positive gate voltage T = 125 °C 10 V GM j P Average gate power dissipation T = 125 °C 0.1 W G(AV) j T Storage junction temperature range -40 to +150 stg °C T Operating junction temperature range -30 to +125 j 1. According to test described by IEC 61000-4-5 standard and Figure18 T able 3. Electrical characteristics (T = 25 °C, unless otherwise specified) j Symbol Test conditions Quadrant Value Unit I (1) II - III Max. 10 mA GT V = 12 V, R = 33  OUT L V II - III Max. 1 V GT V V = V , R = 3.3 kT = 125 °C II - III Min. 0.15 V GD OUT DRM L j I I = 100 mA Max. 10 mA H OUT I I = 1.2 x I Max. 25 mA L G GT V = 402 V, gate open, T = 125 °C Min. 2000 V/µs OUT j dV/dt V = 536 V, gate open, T = 125 °C Min. 400 V/µs OUT j (dI/dt)c Without snubber (15 V/µs), T = 125 °C, turn-off time  20 ms Min. 2 A/ms j I = 0.1 mA, t = 1 ms, ACS108-6 Min. 650 V CL p V CL I = 0.1 mA, t = 1 ms, ACS108-8 Min. 850 V CL p 1. Minimum I is guaranteed at 10% of I max GT GT 2/13 DocID6518 Rev 5

ACS108 Characteristics Table 4. Static electrical characteristics Symbol Parameter and test conditions Value Unit V (1) I = 1.1 A, t = 500 µs T = 25 °C Max. 1.3 V TM TM p j V (1) Threshold voltage T = 125 °C Max. 0.85 V t0 j R (1) Dynamic resistance T = 125 °C Max. 300 m D j IDRM V = V = V Tj = 25 °C Max. 2 µA IRRM OUT DRM RRM Tj = 125 °C 0.2 mA 1. For both polarities of OUT referenced to COM Table 5. Thermal resistance Symbol Parameter Value Unit R Junction to lead (AC) TO-92 Max. 60 th (j-l) R Junction to tab (AC) SOT-223 Max. 25 th (j-t) °C/W TO-92 Max. 150 R Junction to ambient th (j-a) S = 5 cm² SOT-223 Max. 60 Figure 2. Maximum power dissipation versus Figure 3. On-state rms current versus case on-state rms current temperature (SOT223) P (W) IT(RMS)(A) 0.9 0.9 α= 180° 0.8 0.8 (cid:2)=180° 0.7 0.7 SOT-223 0.6 0.6 0.5 0.5 0.4 0.4 0.3 0.3 0.2 180° 0.2 0.1 IT(RMS)(A) 0.1 TC°C 0.0 0.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0 25 50 75 100 125 DocID6518 Rev 5 3/13 13

Characteristics ACS108 Figure 4. On-state rms current versus ambient Figure 5. Relative variation of thermal temperature (free air convection) impedance junction to ambient versus pulse duration 0.9IT(RMS)(A) 1.00 K=[Zth(j-a)/Rth(j-a)] (cid:2)=180° Zth(j-a) 0.8 SOT-223 0.7 TO-92 0.6 0.5 0.10 0.4 TO-92 0.3 SOT-223 0.2 Single layer Printed SOT-223 0.1 Ncairtcuuriat lb cooanrvde FcRtio4n Ta°C tP(s) Coaprepae r= s 5ucrfmac²e 0.0 0.01 0 25 50 75 100 125 1.0E-03 1.0E-02 1.0E-01 1.0E+00 1.0E+01 1.0E+02 1.0E+03 Figure 6. Relative variation of holding and Figure 7. Relative variation of I and V GT GT latching current versus junction temperature versus junction temperature 3.0 IH,IL[Tj]/IH,IL[Tj=25°C] 3.5 IGT,VGT[Tj]/IGT,VGT, [Tj=25°C] 2.5 3.0 IGTQ2 IL 2.5 IGTQ3 2.0 2.0 1.5 IH 1.5 1.0 1.0 VGTQ2-Q3 0.5 0.5 Tj(°C) Tj(°C) 0.0 0.0 -50 -25 0 25 50 75 100 125 -50 -25 0 25 50 75 100 125 Figure 8. Surge peak on-state current versus Figure 9. Non repetitive surge peak on-state number of cycles current for a sinusoidal pulse, and corresponding value of I²t 14 ITSM(A) ITSM(A),I²t(A²s) 1.E+03 13 Sinusoidal pulse, 12 tp< 10 ms 1101 t=O20nme scycle 1.E+02 ITSM Tjinitial = 25 °C Non repetitive 9 Tjinitial=25°C 8 7 SOT-223 1.E+01 Repetitive 6 Ttab = 104°C 5 4 1.E+00 3 I²t TO-92 2 Repetitive 1 Tlead= 76°C Number of cycles tp(ms) 0 1.E-01 1 10 100 1000 0.01 0.10 1.00 10.00 4/13 DocID6518 Rev 5

ACS108 Characteristics Figure 10. On-state characteristics (maximum Figure 11. Relative variation of critical rate of values) decrease of main current versus junction temperature I (A) 100.00 TM (dI/dt)c[Tj] / (dI/dt)c[Tj=125 °C] 2.5 2.0 10.00 1.5 1.0 1.00 Tj=125°C Tj=25°C Tjmax.: 0.5 0.10 VTM(V) RVdt=o= 3 00.08 5m VΩ 0.0 Tj(°C) 25 35 45 55 65 75 85 95 105 115 125 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Figure 12. Relative variation of static dV/dt Figure 13. Relative variation of leakage current immunity versus junction temperature(1) versus junction temperature 5 dV/dt[Tj]/dV/dt[Tj=125°C] 1.0E+00 IDRM/IRRM[Tj;VDRM/VRRM]/IDRM/IRRM[Tj=125°C;800V] VD=VR=536V 4 1.0E-01 VDRM=VRRM=800 V 3 VDRM=VRRM=600 V 2 1.0E-02 1 Tj(°C) Tj(°C) 0 1.0E-03 25 50 75 100 125 25 50 75 100 125 1. V = V = 402 V: Typical values above 5 kV/µs. Beyond equipment capability D R Figure 14. Relative variation of critical rate of Figure 15. Thermal resistance junction to decrease of main current (di/dt)c versus ambient versus copper surface under tab (dV/dt)c (SOT-223) 5.0 (dI/dt)c[(dV/dt)c]/Specified(dI/dt)c 140 Rth(j-a)(°C/W) 4.5 Tj =125°C Pcoripnpteedr tchiricckunite bsosa =rd 3 F5 Rµ4m SOT-223 120 4.0 3.5 100 3.0 80 2.5 60 2.0 1.5 40 1.0 20 0.5 (dV/dt)c(V/µs) SCU(cm²) 0.0 0 0.1 1.0 10.0 100.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 DocID6518 Rev 5 5/13 13

Alternating current mains switch - basic application ACS108 2 Alternating current mains switch - basic application The ACS108 switch is triggered by a negative gate current flowing from the gate pin G. The switch can be driven directly by the digital controller through a resistor as shown in Figure16. Thanks to its overvoltage protection and turn-off commutation performance, the ACS108 switch can drive a small power high inductive load with neither varistor nor additional turn-off snubber. Figure 16. Typical application schematic Valve AC Mains ACS108 Vss Rg V MCU T Power supply Vdd 220Ω I T 2.1 Protection against overvoltage: the best choice is ACS In comparison with standard Triacs the ACS108 is over-voltage self-protected, as specified by the new parameter V . This feature is useful in two operating conditions: in case of turn- CL off of very inductive load, and in case of surge voltage that can occur on the electrical network. 2.1.1 High inductive load switch-off: turn-off overvoltage clamping With high inductive and low rms current loads the rate of decrease of the current is very low. An overvoltage can occur when the gate current is removed and the OUT current is lower than I . H As shown in Figure17, at the end of the last conduction half-cycle, the load current decreases ①. The load current reaches the holding current level I ②, and the ACS turns H off ③. The water valve, as an inductive load (up to 15 H), reacts as a current generator and an overvoltage is created, which is clamped by the ACS ④. The current flows through the ACS avalanche and decreases linearly to zero. During this time, the voltage across the switch is limited to the clamping voltage V . The energy stored in the inductance of the CL load is dissipated in the clamping section that is designed for this purpose. When the energy has been dissipated, the ACS voltage falls back to the mains voltage value (230 V rms, 50Hz)⑤. 6/13 DocID6518 Rev 5

ACS108 Alternating current mains switch - basic application Figure 17. Switching off of a high inductive load - typical clamping capability of ACS108 (T = 25 °C) amb 4 V CL IIT 11 3 V T 22 33 (200V/div) IIHH 44 IT 55 VVT (5 mA/div) VVCCLL 1 I H 2 5 100 µs/div 2.1.2 Alternating current mains transient voltage ruggedness The ACS108 switch is able to withstand safely the AC mains transients either by clamping the low energy spikes or by breaking-over when subjected to high energy shocks, even with high turn-on current rises. The test circuit shown in Figure18 is representative of the final ACS108 application, and is also used to test the AC switch according to the IEC 61000-4-5 standard conditions. Thanks to the load limiting the current, the ACS108 switch withstands the voltage spikes up to 2 kV above the peak mains voltage. The protection is based on an overvoltage crowbar technology. Actually, the ACS108 breaks over safely as shown in Figure19. The ACS108 recovers its blocking voltage capability after the surge (switch off back at the next zero crossing of the current). Such non-repetitive tests can be done 10 times on each AC mains voltage polarity. Figure 18. Overvoltage ruggedness test circuit for resistive and inductive loads, T amb = 25 °C (conditions equivalent to IEC61000-4-5 standard) +2 kV surge generator Load CC 150Ω 5 µH ACS108 OUT Mains V T G voltage 230V rms COM 50 Hz 220Ω IT DocID6518 Rev 5 7/13 13

Alternating current mains switch - basic application ACS108 Figure 19. Typical current and voltage waveforms across the ACS108 (+2 kV surge, IEC 61000-4-5 standard) V (200V/div) T I = 17.2 A T max dI /dt= 1.8 A/µs T I (4 A/div) T 500 ns/div 8/13 DocID6518 Rev 5

ACS108 Package information 3 Package information  Epoxy meets UL94, V0  Lead-free packages In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Figure 20. TO-92 dimension definitions A a B C F D E Table 6. TO-92 dimension values Dimensions Ref Millimeters Inches Min. Typ. Max. Min. Typ. Max. A 1.35 0.053 B 4.70 0.185 C 2.54 0.100 D 4.40 0.173 E 12.70 0.500 F 3.70 0.146 a 0.50 0.019 DocID6518 Rev 5 9/13 13

Package information ACS108 Figure 21. SOT-223 dimension definitions A V c A1 B e1 D B1 4 H E 1 2 3 e Table 7. SOT-223 dimension values Dimensions Ref. Millimeters Inches Min. Typ. Max. Min. Typ. Max. A 1.80 0.071 A1 0.02 0.10 0.001 0.004 B 0.60 0.70 0.85 0.024 0.027 0.033 B1 2.90 3.00 3.15 0.114 0.118 0.124 c 0.24 0.26 0.35 0.009 0.010 0.014 D(1) 6.30 6.50 6.70 0.248 0.256 0.264 e 2.3 0.090 e1 4.6 0.181 E(1) 3.30 3.50 3.70 0.130 0.138 0.146 H 6.70 7.00 7.30 0.264 0.276 0.287 V 10° max 1. Do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.15mm (0.006inches) Figure 22. SOT-223 footprint (dimensions in mm) 3.25 1.32 5.16 7.80 1.32 2.30 0.95 10/13 DocID6518 Rev 5

ACS108 Ordering information 4 Ordering information Figure 23. Ordering information scheme ACS 1 08 - 6 S A -TR AC switch series Number of switches Current 08 = 0.8 A rms Voltage 6 = 600V 8 = 800V Sensitivity S = 10 mA Package A =TO-92 N = SOT-223 Packing TR =Tape and reel 7”(SOT-223, 1000 pieces) 13”(TO-92, 2000 pieces) AP = Ammopack (TO-92, 2000 pieces) Blank =bulk(TO-92, 2500 pieces) Table 8. Ordering information Order code Marking Package Weight Base Qty Delivery mode ACS108-6SA TO-92 0.2 g 2500 Bulk ACS108-6SA-TR ACS1 086SA TO-92 0.2 g 2000 Tape and reel ACS108-6SA-AP TO-92 0.2 g 2000 Ammopack ACS108-6SN-TR ACS 108 6SN SOT-223 0.11 g 1000 Tape and reel ACS108-8SA TO-92 0.2 g 2500 Bulk ACS108-8SA-TR ACS1 088SA TO-92 0.2 g 2000 Tape and reel ACS108-8SA-AP TO-92 0.2 g 2000 Ammopack ACS108-8SN-TR ACS 108 8SN SOT-223 0.11 g 1000 Tape and reel DocID6518 Rev 5 11/13 13

Revision history ACS108 5 Revision history Table 9. Document revision history Date Revision Changes Initial release. This datasheet covers order codes previously Apr_2004 1 described in the datasheet for ACS108-6S, Doc ID 11962, Rev 3 December 2010. 21-Jun-2005 2 Marking information updated from ACSxxxx to ACS1xxx. 11-Jul-2012 3 Removed 500 V devices and added 600 V and 800 V devices. 27-Sep-2013 4 Corrected typographical error in Figure4. 31-Oct-2013 5 Corrected character formatting issues in Section2.1.1. 12/13 DocID6518 Rev 5

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Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: S TMicroelectronics: ACS108-6SA ACS108-6SA-AP ACS108-6SA-TR ACS108-6SN-TR ACS108-8SA-TR ACS108-8SN-TR ACS108- 8SA ACS108-8SA-AP