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ACST10 Transient protected AC power switch Features OUT Triac with overvoltage crowbar technology Low IGT (<10 mA) or high immunity (IGT<35 mA) version High noise immunity: static dV/dt > 2000 V/s G OUT COM G OUT COM Benefits Enables equipment to meet IEC 61000-4-5 High off-state reliability with planar technology Need no external over voltage protection Reduces the power passive component count High immunity against fast transients described in IEC 61000-4-4 standards TO-220AB ACST10-7xT TO-220FPAB ACST10-7xFT Figure 1. Functional diagram OUT Applications AC mains static switching in appliance and industrial control systems Drive of medium power AC loads like: - Universal drum motor of washing machine - Compressor for fridge or air conditioner Table 1. Symbol G COM Description The ACST10 series belongs to the ACS/ACST family built with the ASD (application specific discrete) technology. This high performance device is adapted to home appliances or industrial systems, and drives loads up to 10 A. This ACST10 switch embeds a TRIAC structure and a high voltage clamping device able to absorb the inductive turn-off energy and withstand line transients such as those described in the IEC 61000-4-5 standards. The ACST10-7S needs only low gate current to be activated (IGT < 10 mA) and still shows a high noise immunity complying with IEC standards such as IEC 61000-4-4 (Fast transient burst test). The ACST10-7C offers an extremely high static dV/dt immunity of 2 kV/s minimum. Device summary Value 10 700 10 or 35 Unit A V mA IT(RMS) VDRM/VRRM IGT December 2008 Rev 1 1/12 www.st.com Characteristics ACST10 1 Table 2. Symbol IT(RMS) Characteristics Absolute ratings (limiting values) Parameter TO-220AB On-state rms current (full sine wave) TO-220FPAB Non repetitive surge peak on-state current Tj initial = 25 C, ( full cycle sine wave) I t for fuse selection Critical rate of rise on-state current IG = 2 x IGT, (tr 100 ns) Non repetitive line peak pulse voltage (1) Average gate power dissipation Peak gate power dissipation (tp = 20 s) Peak gate current (tp = 20 s) Storage temperature range Operating junction temperature range F = 120 Hz 2 Value Tc = 105 C Tamb = 84 C tp = 16.7 ms tp = 20 ms tp = 10 ms Tj = 125 C Tj = 25 C Tj = 125 C Tj = 125 C Tj = 125 C 105 100 66 100 2 0.1 10 1 -40 to +150 -40 to +125 10 Unit A A A A2s A/s kV W W A C C F = 60 Hz F = 50 Hz ITSM I2 t dI/dt VPP PG(AV) PGM IGM Tstg Tj 1. According to test described in IEC 61000-4-5 standard and Figure 17 Table 3. Symbol IGT(1) VGT VGD IH(2) IL Electrical characteristics Value Test conditions VOUT = 12 V, RL = 33 VOUT = 12 V, RL = 33 VOUT = VDRM, RL = 3.3 IOUT = 500 mA IG = 1.2 x IGT I - II - III Quadrant I - II - III I - II - III I - II - III Tj ACST10-7Sx 25 C 25 C 125 C 25 C 25 C 125 C 125 C Without snubber ICL = 0.1 mA, tp = 1 ms 25 C MAX. MAX. MIN. MAX. MAX. MIN. MIN. 12 MIN. 850 V 30 50 200 4.4 A/ms 10 1.0 0.2 50 70 2000 ACST10-7Cx 35 mA V V mA mA V/s Unit dV/dt(2) VOUT = 67 % VDRM, gate open (dI/dt)c(2) VCL (dV/dt)c = 15 V/s 1. Minimum IGT is guaranteed at 5% of IGT max 2. For both polarities of OUT pin referenced to COM pin 2/12 ACST10 Table 4. Symbol VTM(1) VT0(1) Rd(1) IDRM IRRM Characteristics Static characteristics Test conditions IOUT = 14.1 A, tp = 500 s Threshold voltage Dynamic resistance VOUT = VDRM/ VRRM Tj = 25 C Tj = 125 C Tj = 125 C Tj = 25 C Tj = 125 C MAX. MAX. MAX. MAX. MAX. Value 1.5 0.9 35 20 1.2 Unit V V m A mA 1. For both polarities of OUT pin referenced to COM pin Table 5. Symbol Rth(j-c) Rth(j-a) Thermal characteristics Parameter TO-220AB Junction to case (AC) TO-220FPAB Junction to ambient TO-220AB TO-220FPAB 3.5 60 C/W C/W Value 1.7 Unit C/W 3/12 Characteristics ACST10 Figure 2. P(W) 12 11 10 9 8 7 6 5 Maximum power dissipation vs. rms on-state current (full cycle) Figure 3. IT(RMS)(A) 11 On-state rms current vs. case temperature (full cycle) TO-220AB 10 9 8 7 6 5 4 TO-220FPAB 4 3 2 1 0 0 1 2 3 4 3 2 TC(C) IT(RMS)(A) 5 6 7 8 9 10 1 0 0 25 50 75 100 125 Figure 4. On-state rms current vs. ambient Figure 5. temperature (free air convection full cycle) 1.0E+00 Relative variation of thermal impedance vs. pulse duration IT(RMS)(A) 3,0 K=[Zth/Rth] TO-220AB Zth(j-c) Zth(j-a) 2,5 TO-220FPAB 2,0 1,5 1.0E-01 1,0 TO-220AB TO-220FPAB Tamb(C) tp(s) 0,5 0,0 0 25 50 75 100 125 1.0E-02 1.0E-03 1.0E-02 1.0E-01 1.0E+00 1.0E+01 1.0E+02 1.0E+03 Figure 6. On-state characteristics (maximal values) Figure 7. Non repetitive surge peak on-state current vs. number of cycles (Tj initial = 25 C) 100 ITM(A) 110 100 90 80 70 60 50 40 30 20 10 0 5 ITSM(A) t=20ms Non repetitive Tj initial=25 C One cycle ITM (A) 10 Tj=125 C Tj=25 C VTM(V) 2 3 4 Tj max : Vto = 0.90 V Rd = 35 m Repetitive TC=105 C Number of cycles 10 100 1 0 1 1 4/12 ACST10 Characteristics Figure 8. Non repetitive surge peak on-state Figure 9. current for a sinusoidal pulse and corresponding value of It dI/dt limitation: 100 A/s Relative variation of gate triggering current (IGT) and gate triggering voltage vs. junction temperature 10000 ITSM(A), I2t (A2s) 3.0 Tj initial=25 C IGT, VGT,[Tj/IGT[Tj = 25 C] IGTQ3 2.5 1000 ITSM IGTQ1-Q2 2.0 100 It 1.5 1.0 VGTQ1-Q2-Q3 10 tp(ms) 1 0.01 0.10 1.00 10.00 0.5 Tj(C) 0.0 -50 -25 0 25 50 75 100 125 Figure 10. Relative variation of holding (IH) and latching current (IL) vs. junction temperature 2.5 Figure 11. Relative variation of critical rate of decrease of main current (di/dt)c vs. (dV/dt)c 1.6 1.4 IH,IL[TJ]/IH,IL[Tj = 25 C] (di/dt)c [(dV/dt)c] / Specified (di/dt)c 2.0 1.2 ACST10-7Cxx 1.5 1.0 Typical values 1.0 IL IH 0.8 0.6 0.4 0.2 0.0 0.1 ACST10-7Sxx 0.5 TJ(C) 0.0 -50 -25 0 25 50 75 100 125 (dV/dt)c (V/s) 1 10 100 Figure 12. Relative variation of critical rate of decrease of main current (di/dt)c vs. junction temperature 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Figure 13. Relative variation of static dV/dt vs. junction temperature (dV/dt)[Tj] / (dV/dt)[Tj = 125 C] VD = VR = 460 V (dI/dt)c[Tj] / (dI/dt)c[Tj=125C] 11 10 9 8 7 6 5 4 3 2 Tj(C) 25 50 75 100 125 1 0 25 50 Tj(C) 75 100 125 5/12 Characteristics ACST10 Figure 14. Relative variation of maximum clamping voltage, VCL vs. junction temperature 1.15 VCL[Tj] / VCL[Tj = 25 C] 1.10 1.05 1.00 Minimum values 0.95 0.90 tj(C) 0.85 -50 -25 0 25 50 75 100 125 6/12 ACST10 Application information 2 2.1 Application information Typical application description The ACST10 device has been designed to control medium power load, such as AC motors in home appliances. Thanks to its thermal and turn off commutation performances, the ACST10 switch is able to drive, with no turn off additional snubber, an inductive load up to 10 A. It also provides high thermal performances in static and transient modes such as the compressor inrush current or high torque operating conditions of an AC motor. Thanks to its low gate triggering current level, the ACST10-7S can be driven directly by an MCU through a simple gate resistor as shown Figure 15. Figure 15. Compressor control - typical diagram Compressor Compressor AC Mains AC Mains PTC ACST 2 Electronic starter logical circuitry PTC 1 ACST Start switch Run switch ACST ACST Electronic thermostat Rg 3 Rg Rg Power supply Gate Driver Power supply Gate Driver Figure 16. Universal drum motor control - typical diagram Universal motor Stator Rotor 12V AC Mains Motor direction setting MCU Speed motor regulation ACST Rg Vcc MCU 7/12 Ordering information scheme ACST10 2.2 AC line transient voltage ruggedness In comparison with standard TRIACs, which are not robust against surge voltage, the ACST10 is self-protected against over-voltage, specified by the new parameter VCL. The ACST10 switch can safely withstand AC line transient voltages either by clamping the low energy spikes or by switching to the on state (for less than 10 ms) to dissipate higher energy shocks through the load. This safety feature works even with high turn-on current rises. The test circuit of Figure 17 represents the ACST10 application, and is used to stress the ACST switch according to the IEC 61000-4-5 standard conditions. Thanks to the load which is limiting the current, the ACST switch withstands the voltage spikes up to 2 kV above the peak line voltage. The protection is based on an overvoltage crowbar technology. The ACST10 switches safely to the on state as shown in Figure 18. The ACST10 recovers its blocking voltage capability after the surge. Such a non repetitive test can be done at least 10 times on each AC line voltage polarity. Figure 17. Overvoltage ruggedness test circuit Figure 18. Typical current and voltage for resistive and inductive loads for waveforms across the ACST10 during IEC 61000-4-5 standard test IEC 61000-4-5 standards R = 8 , L = 4 H, Vsurge = 2 kV Surge generator 2kV surge VPEAK = V CL VOUT IOUT Model of the load R L ACST12 Rgene Filtering unit L AC Mains C Rg 3 Ordering information scheme Figure 19. Ordering information scheme ACST 10 - 7 C T AC Switch On-state rms current 10 = 10A Repetitive peak off-state voltage 7 = 700V Triggering gate current S = 10 mA C = 35 mA Package FP = TO-220FPAB T = TO-220AB 8/12 ACST10 Package information 4 Package information Epoxy meets UL94, V0 Recommended torque: 0.4 to 0.6 N*m In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at www.st.com. Table 6. TO-220AB dimensions Dimensions Ref. Millimeters Min. A C H2 Dia L5 L7 L6 L2 F2 F1 L9 L4 F G1 G M E D C A Inches Min. 0.173 0.048 0.094 0.019 0.024 0.044 0.044 0.194 0.094 0.393 Max. 0.181 0.051 0.107 0.027 0.034 0.066 0.066 0.202 0.106 0.409 Max. 4.60 1.32 2.72 0.70 0.88 1.70 1.70 5.15 2.70 10.40 4.40 1.23 2.40 0.49 0.61 1.14 1.14 4.95 2.40 10 D E F F1 F2 G G1 H2 L2 L4 L5 L6 L7 L9 M Diam. 16.4 typ. 13 2.65 15.25 6.20 3.50 14 2.95 15.75 6.60 3.93 0.645 typ. 0.511 0.104 0.600 0.244 0.137 0.551 0.116 0.620 0.259 0.154 2.6 typ. 3.75 3.85 0.102 typ. 0.147 0.151 9/12 Package information Table 7. TO-220FPAB dimensions Dimensions Ref. Millimeters Min. A A H B ACST10 Inches Min. 0.173 0.098 0.098 0.018 0.030 0.045 0.045 0.195 0.094 0.393 Max. 0.181 0.106 0.108 0.027 0.039 0.059 0.059 0.205 0.106 0.409 Max. 4.6 2.7 2.75 0.70 1 1.50 1.50 5.20 2.7 10.4 4.4 2.5 2.5 0.45 0.75 1.15 1.15 4.95 2.4 10 B D E Dia L6 L2 L3 L5 F1 L4 F2 D L7 F F1 F2 G G1 H L2 E 16 Typ. 28.6 9.8 2.9 15.9 9.00 3.00 30.6 10.6 3.6 16.4 9.30 3.20 0.63 Typ. 1.126 0.386 0.114 0.626 0.354 0.118 1.205 0.417 0.142 0.646 0.366 0.126 F G1 G L3 L4 L5 L6 L7 Diam. 10/12 ACST10 Ordering information 5 Ordering information Table 8. Ordering information Marking ACST107S ACST10-7SFP ACST10-7CT ACST107C ACST10-7CFP TO-220FPAB 2.3 g 50 Tube TO-220FPAB TO-220AB 2.3 g 2.3 g 50 50 Tube Tube Package TO-220AB Weight 2.3 g Base qty 50 Packing mode Tube Order code ACST10-7ST 6 Revision history Table 9. Date 02-Dec-2008 Document revision history Revision 1 First issue Changes 11/12 ACST10 Please Read Carefully: Information in this document is provided solely in connection with ST products. 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