ACST6

ACST6 Overvoltage protected AC switch Features ■ ■ ■ OUT Triac with overvoltage protection Low IGT (< 10 mA) TO-220FPAB insulated package: 1500 V rms G OUT COM G OUT COM Benefits ■ ■ ■ ■ ■ Enables equipment to meet IEC 61000-4-5 High off-state reliability with planar technology Needs no external overvoltage protection Reduces the power passive component count High immunity against fast transients described in IEC 61000-4-4 standards TO-220AB ACST610-8T OUT TO-220FPAB ACST610-8FP OUT G COM Applications ■ ■ G OUT COM AC mains static switching in appliance and industrial control systems Drive of medium power AC loads such as: – Universal motor of washing machine drum – Compressor for fridge or air conditioner D²PAK ACST610-8G I²PAK ACST610-8R Figure 1. Functional diagram OUT Description The ACST6 series belongs to the ACS™/ACST power switch family built with A.S.D.® (application specific discrete) technology. This high performance device is suited to home appliances or industrial systems, and drives loads up to 6 A. This ACST6 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 ACST610 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). Table 1. Symbol IT(RMS) VDRM/VRRM IGT G COM Device summary Value 6 800 10 Unit A V mA TM: ACS is a trademark of STMicroelectronics. ®: A.S.D. is a registered trademark of STMicroelectronics December 2009 Doc ID 7297 Rev 9 1/15 www.st.com 15 Characteristics ACST6 1 Table 2. Symbol Characteristics Absolute ratings (limiting values) Parameter TO-220FPAB IT(RMS) On-state rms current (full sine wave) TO-220AB/ D²PAK / I²PAK D²PAK with 1 cm2 copper ITSM I2t dI/dt VPP PG(AV) PGM IGM Tstg Tj Tl Non repetitive surge peak on-state current F = 60 Hz Tj initial = 25 °C, ( full cycle sine wave) F = 50 Hz I2t 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 µs) Peak gate current (tp = 20 µs) Storage temperature range Operating junction temperature range Maximum lead solder temperature during 10 ms (at 3 mm from plastic case) TO-220FPAB F = 120 Hz Tc = 92 °C 6 Tc = 106 °C Tamb = 62 °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 1.5 47 45 13 100 2 0.1 10 1.6 -40 to +150 -40 to +125 260 1500 A A A2 s A/µs kV W W A °C °C °C V A Value Unit VINS(RMS) Insulation rms voltage 1. According to test described in IEC 61000-4-5 standard and Figure 19. Table 3. Symbol IGT(1) VGT VGD IH(2) IL IL dV/dt (2) (2) Electrical characteristics Test conditions VOUT = 12 V, RL = 33 Ω VOUT = 12 V, RL = 33 Ω VOUT = VDRM, RL = 3.3 kΩ IOUT = 500 mA IG = 1.2 x IGT IG = 1.2 x IGT VOUT = 67 % VDRM, gate open (dV/dt)c = 15 V/µs ICL = 0.1 mA, tp = 1 ms I - III II Quadrant I - II - III I - II - III I - II - III Tj 25 °C 25 °C 125 °C 25 °C 25 °C 25 °C 125 °C 125 °C 25 °C MAX. MAX. MIN. MAX. MAX. MAX. MIN. MIN. MIN. Value 10 1.0 0.2 25 30 40 500 3.5 850 Unit mA V V mA mA mA V/µs A/ms V (dI/dt)c VCL 1. Minimum IGT is guaranteed at 5% of IGT max 2. For both polarities of OUT pin referenced to COM pin 2/15 Doc ID 7297 Rev 9 ACST6 Table 4. Symbol VTM(1) VT0(1) Rd(1) IDRM IRRM IOUT = 2.1 A, tp = 500 µs IOUT = 8.5 A, tp = 500 µs Threshold voltage Dynamic resistance VOUT = VDRM/ VRRM Characteristics Static characteristics Test conditions Tj = 25 °C Tj = 125 °C Tj = 125 °C Tj = 25 °C Tj = 125 °C MAX. 1.7 MAX. MAX. MAX. MAX. 0.9 80 20 500 V mΩ µA µA Value 1.4 V Unit 1. For both polarities of OUT pin referenced to COM pin Table 5. Symbol Thermal resistances Parameter TO-220AB TO-220FPAB I²PAK Junction to ambient (soldered on 1 cm2 copper pad) D²PAK TO-220FPAB Value 60 65 45 4.25 °C/W 2.5 °C/W Unit Junction to ambient Rth(j-a) Rth(j-c) Junction to case for full cycle sine wave conduction TO-220AB D²PAK , I²PAK Figure 2. Maximum power dissipation versus Figure 3. rms on-state current 7 6 5 On-state rms current versus case temperature (full cycle) 8 7 6 5 P(W) α = 180° 180° IT(RMS)(A) α = 180° TO-220FPAB 4 4 3 2 1 0 IT(RMS)(A) TO-220AB D²PAK I²PAK 3 2 1 0 TC(°C) 0 1 2 3 4 5 6 0 25 50 75 100 125 Doc ID 7297 Rev 9 3/15 Characteristics ACST6 Figure 4. On-state rms current versus ambient temperature (free air convection, full cycle) Figure 5. Relative variation of thermal impedance versus pulse duration IT(RMS)(A) 2.5 D2PAK with copper surface = 1 cm2 1.0E+00 α=180° K = [Zth / Rth] Zth(j-c) Zth(j-a) 2.0 1.5 TO-220FPAB TO220AB I2PAK TO-220AB D²PAK I²PAK 1.0E-01 1.0 TO-220FPAB 0.5 0.0 0 25 50 Ta(°C) 75 100 125 1.0E-02 1.0E-03 tp(s) 1.0E-01 1.0E+01 1.0E+03 Figure 6. Relative variation of gate trigger current (IGT) and voltage (VGT) versus junction temperature Figure 7. Relative variation of holding current (IH) and latching current (IL) versus junction temperature 3.0 2.5 2.0 1.5 IGT, VGT[Tj] / IGT, VGT[Tj = 25 °C] (typical values) IGT Q3 2.5 IH, IL[Tj] / IH, IL[Tj = 25 °C] (typical values) 2.0 IGT Q1-Q2 1.5 1.0 1.0 0.5 0.0 -50 VGT Q1-Q2-Q3 0.5 IL IH Tj(°C) -25 0 25 50 75 100 125 Tj (°C) -25 0 25 50 75 100 125 0.0 -50 Figure 8. Surge peak on-state current versus number of cycles Figure 9. Non repetitive surge peak on-state current and corresponding value of I2t versus sinusoidal pulse width 50 ITSM(A) 1000 ITSM(A), I²t (A²s) dl /dt limitation: 100 A / µs Tj initial = 25 °C 40 t = 20 ms One cycle 100 ITSM 30 Non repetitive Tj initial = 25 °C Repetitive TC =106 °C Number of cycles 20 I²t 10 10 Number of cycles 0 1 10 100 1000 tp(ms) 1 0.01 0.10 1.00 10.00 4/15 Doc ID 7297 Rev 9 ACST6 Characteristics Figure 10. On-state characteristics (maximum values) Figure 11. Relative variation of critical rate of decrease of main current (dI/dt)c versus junction temperature 8 7 6 5 100 ITM(A) (dl/dt)c [Tj] / (dl/dt)c[Tj = 125 °C] 10 Tjmax: Vto = 0.90 V Rd = 80 mΩ Tj = 125 °C 4 3 2 Tj = 25 °C VTM(V) 1 0 5 25 50 Tj(°C) 1 0 1 2 3 4 75 100 125 Figure 12. Relative variation of static dV/dt immunity versus junction temperature (gate open) 6 5 4 3 2 1 0 25 50 75 100 Figure 13. Relative variation of leakage current versus junction temperature IDRM/IRRM [Tj; VDRM / VRRM] / IDRM/IRRM[Tj = 125 °C; 800 V] 1.0E+00 VDRM = VRRM = 800V dV/dt [Tj] / dV/dt [Tj = 125 °C] VD = VR = 536 V Different blocking voltages 1.0E-01 VDRM = VRRM = 600 V 1.0E-02 VDRM = VRRM = 200 V Tj(°C) 125 1.0E-03 25 50 75 100 Tj(°C) 125 Figure 14. Relative variation of clamping voltage (VCL) versus junction temperature (minimum values) 1.15 Figure 15. Thermal resistance junction to ambient versus copper surface under tab 80 70 VCL[Tj] / VCL [Tj = 25 °C] Rth(j-a)(°C/W) Printed circuit board FR4, copper thickness = 35 µm D²PAK 1.10 60 50 40 1.05 1.00 30 0.95 20 10 0.90 Tj(°C) 0.85 -50 -25 0 25 50 75 100 125 SCU(cm²) 0 5 10 15 20 25 30 35 40 0 Doc ID 7297 Rev 9 5/15 Application information ACST6 2 2.1 Application information Typical application description The ACST6 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 ACST6 switch is able to drive an inductive load up to 6 A with no turn off additional snubber. 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 ACST6 can be driven directly by an MCU through a simple gate resistor as shown Figure 16 and Figure 17. Figure 16. Compressor control – typical diagram Compressor Compressor AC Mains PTC AC Mains PTC ACST ACST 2 1 3 Electronic starter logical circuitry Start switch Run switch ACST ACST Electronic thermostat Rg Rg Gate Driver Rg Power supply Power supply Gate Driver Compressor with integrated e-starter Compressor with external electronic drive 6/15 Doc ID 7297 Rev 9 ACST6 Figure 17. Universal drum motor control – typical diagram Universal motor Application information Stator Rotor 12V AC Mains Motor direction setting MCU Speed motor regulation ACST Rg Vcc MCU 2.2 AC line transient voltage ruggedness In comparison with standard Triacs, which are not robust against surge voltage, the ACST6 is self-protected against over-voltage, specified by the new parameter VCL. The ACST6 switch can safely withstand AC line transient voltages either by clamping the low energy spikes, such as inductive spikes at switch off, 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 ramp up. The test circuit of Figure 18 represents the ACST6 application, and is used to stress the ACST switch according to the IEC 61000-4-5 standard conditions. With the additional effect of the load which is limiting the current, the ACST switch withstands the voltage spikes up to 2 kV on top of the peak line voltage. The protection is based on an overvoltage crowbar technology. The ACST6 folds back safely to the on state as shown in Figure 19. The ACST6 recovers its blocking voltage capability after the surge and the next zero current crossing. Such a non repetitive test can be done at least 10 times on each AC line voltage polarity. Doc ID 7297 Rev 9 7/15 Application information ACST6 Figure 18. Overvoltage ruggedness test circuit for resistive and inductive loads for IEC 61000-4-5 standards R = 18 Ω, L = 2 µH, Vsurge = 2 kV Rg = 220 Ω Surge generator 2kV surge Rgene Filtering unit Model of the load R L ACST6 AC Mains Rg Figure 19. Typical current and voltage waveforms across the ACST6 during IEC 61000-4-5 standard test Vpeak = VCL 1.2/50 µs voltage surge V 0 Ipeak = 120 A I 8/20 µs current surge 0 dI/dt = 150 A/µs 8/15 Doc ID 7297 Rev 9 ACST6 Ordering information scheme 3 Ordering information scheme Figure 20. Ordering information scheme ACS T 6 10 - 8 T TR AC switch Topology T = Triac On-state rms current 6=6A Triggering gate current 10 = 10 mA Repetitive peak off-state voltage 8 = 800 V Package FP = TO-220FPAB T = TO-220AB R = I²PAK G = D²PAK Delivery mode TR = Tape and reel Blank = Tube Doc ID 7297 Rev 9 9/15 Package information ACST6 4 Package information ● ● ● Epoxy meets UL94, V0 Cooling method: by conduction (C) Recommended torque value (TO220AB, TO220FPAB): 0.4 to 0.6 N·m 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. 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 10/15 Doc ID 7297 Rev 9 ACST6 Table 7. TO-220FPAB dimensions Package information Dimensions Ref. Millimeters Min. A B A H B 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 0.067 0.067 0.205 0.106 0.409 Max. 4.6 2.7 2.75 0.70 1 1.70 1.70 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 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 Dia. Doc ID 7297 Rev 9 11/15 Package information Table 8. D2PAK dimensions Dimensions Ref. Millimeters Min. A A E L2 ACST6 Inches Min. 0.173 0.098 0.001 0.027 0.045 0.017 0.048 0.352 0.393 0.192 0.590 0.050 0.055 0.094 Max. 0.181 0.106 0.009 0.037 0.067 0.024 0.054 0.368 0.409 0.208 0.624 0.055 0.069 0.126 Max. 4.60 2.69 0.23 0.93 1.70 0.60 1.36 9.35 10.40 5.28 15.85 1.40 1.75 3.20 4.40 2.49 0.03 0.70 1.14 0.45 1.23 8.95 10.00 4.88 15.00 1.27 1.40 2.40 A1 C2 A2 B D L L3 A1 B2 B G A2 R B2 C C2 C D E G L M * V2 L2 L3 * FLAT ZONE NO LESS THAN 2mm M R V2 0.40 typ. 0° 8° 0.016 typ. 0° 8° Figure 21. Footprint (dimensions in mm) 16.90 10.30 1.30 5.08 8.90 3.70 12/15 Doc ID 7297 Rev 9 ACST6 Table 9. I2PAK double track dimensions Package information Dimensions Ref. Millimeters Min. A E L2 Cropping direction Inches Min. 0.173 0.098 0.027 0.045 0.018 0.048 0.352 0.394 0.192 0.657 0.050 0.544 Max. 0.181 0.106 0.037 0.067 0.024 0.053 0.368 0.409 0.208 0.689 0.055 0.568 Max. 4.60 2.69 0.93 1.70 0.60 1.36 9.35 10.40 5.28 17.5 1.40 14.42 A A1 B D 4.40 2.49 0.70 1.14 0.45 1.23 8.95 10 4.88 16.70 1.27 13.82 C2 B2 C C2 L L3 A1 G C B2 B D E G L L2 L3 Doc ID 7297 Rev 9 13/15 Ordering information ACST6 5 Ordering information Table 10. Ordering information Marking Package TO-220FPAB D2PAK ACST6108 D2PAK I 2PAK Order code ACST610-8FP ACST610-8G ACST610-8GTR ACST610-8R ACST610-8T Weight 2.4 g 1.5 g 1.5 g 2.3 g 1.5 g Base Qty 50 50 1000 50 50 Packing mode Tube Tube Tape and reel Tube Tube TO-220AB 6 Revision history Table 11. Date Jan-2002 09-May-2005 18-Dec-2009 Document revision history Revision 7F 8 9 Previous issue. Layout update. No content change. Document structure and parameter presentation revised for consistency with other ACST documents. No technical changes. Order codes updated. Changes 14/15 Doc ID 7297 Rev 9 ACST6 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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