ACST1235-8FP

ACST1235-8FP Overvoltage protected AC switch Datasheet − production data Description The ACST1235-8FP 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 12 A. G OUT COM This ACST1235-8FP 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 standard. It offers an extremely high static dV/dt immunity of 2 kV/μs minimum at 150 °C junction temperature. TO-220FPAB (ACST1235-8FP) Features ACST1235-8FP enables applications to be compliant with IEC 61000-4-4 and IEC 61000-4-5. • 12 A medium current AC Switch • Triac with self overvoltage protection Figure 1. Functional diagram • High static immunity and dynamic commutation • 800 V VDRM / VRRM OUT • High junction temperature: Tj = 150 °C max • Complies with UL standards (File ref: E81734) • TO-220FPAB-insulated package 1500VRMS • ECOPACK®2 and RoHs compliant component G Applications COM Motor control for home appliances: • Washing machine universal drum motors • Compressor of fridge or air conditioner April 2014 This is information on a product in full production. Table 1. Device summary Symbol Value VDRM/VRRM IT(RMS) 12 A IGT 35 mA VDRM/VRRM 800 V DocID026033 Rev 1 1/13 www.st.com Characteristics 1 ACST1235-8FP Characteristics Table 2. Absolute ratings (limiting values) Symbol IT(RMS) ITSM I2t dI/dt Parameter Test conditions (dI/dt)BO(1) Unit A On-state rms current (full sine wave) Tc = 97 °C 12 Non repetitive surge peak on-state current (Tj initial = 25 °C) tp = 16.7 ms 105 tp = 20 ms 100 I2t value for fusing (full cycle sine wave) tp = 10 ms 66 A²s Critical rate of rise on-state current IG = 2 x IGT, tr ≤ 100 ns F = 60Hz 100 A/µs Tj = 150 °C 800 V Tj = 25 °C 2 kV 150 A/µs VDRM/VRRM Repetitive peak off-state voltage VPP(1) Value Non repetitive line peak pulse voltage Tj = 150 °C Non repetitive critical current rate of rise at breakover Tj = 25 °C A IGM Peak gate current tp = 20 µs Tj = 150 °C 1 A PGM Peak gate power tp = 20 µs Tj = 150 °C 10 W Average gate power dissipation Tj = 150 °C 0.1 W Storage junction temperature range -40 to +150 °C Tj Operating junction temperature range -40 to +150 °C TL Maximum lead temperature for soldering during 10 s 260 °C 1.500 V PG(AV) Tstg Vins(rms) Insulation rms voltage (60 seconds) 1. according to test described by standard IEC 61000-4-5 (see Figure 19) Table 3. Electrical characteristics Symbol Test conditions Quadrant Tj 35 MIN. 1.75 25 °C MAX. 1.0 V 150 °C MIN. 0.2 V 25 °C MAX. 30 mA 25 °C MAX. 40 mA 125 °C MIN. 4000 150 °C MIN. 2000 Without snubber 125 °C MIN. 12 (dI/dt)c = 15 V/µs 150 °C MIN. 6 MIN. 850 VD = 12 V, R L = 33 Ω I - II - III 25 °C VGT VD = 12 V, R L = 33 Ω I - II - III VGD VD = VDRM, RL = 3.3 kΩ I - II - III IH(1) IT = 500 mA, gate open dV/dt(1) (dI/dt)c(1) VCL IG = 1.2 x IGT I - II - III VD = 67% VDRM/VRRM, gate open ICL = 0.1 mA, tp = 1 ms 1. For both polarities of OUT pin referenced to COM pin 2/13 Unit MAX. IGT IL Value DocID026033 Rev 1 mA V/µs A/ms V ACST1235-8FP Characteristics Table 4. Static characteristics Symbol VTM(1) Value Unit ITM = 17 A, tp = 380 µs Tj = 25 °C MAX. 1.5 V (1) Threshold voltage Tj = 150 °C MAX. 0.9 V (1) Dynamic resistance Tj = 150 °C MAX. 38 mΩ 1 µA 500 µA 1.2 mA Value Unit Vto Rd Test conditions Tj = 25 °C IDRM IRRM Tj = 125 °C VOUT = VDRM / VRRM MAX. Tj = 150 °C 1. For both polarities of OUT pin referenced to COM pin Table 5. Thermal characteristics Symbol Parameter Rth(j-c) Junction to case (AC) 3.5 °C/W Rth(j-a) Junction to ambient (AC) 60 °C/W Figure 2. Maximum power dissipation versus rms on-state current (full cycle) Figure 3. On-state rms current versus case temperature (full cycle) IT(RMS)(A) P(W) 16 14 α = 180 ° 14 α = 180 ° 12 12 10 10 8 8 6 6 4 4 180 ° α 2 2 TC(°C) α IT(RMS)(A) 0 0 0 2 4 6 8 10 12 Figure 4. On-state rms current versus ambient temperature (free air convection) 3.0 IT(RMS)(A) 0 25 50 75 100 125 150 Figure 5. Relative variation of thermal impedance versus pulse duration 1.0E+00 K = [Zth/Rth] Z th(j - c) α = 180 ° Z th(j - a) 2.5 2.0 1.0E-01 1.5 1.0 0.5 Ta(°C) 0.0 0 25 50 75 100 125 150 1.0E-02 1.0E-03 DocID026033 Rev 1 tp(s) 1.0E-02 1.0E-01 1.0E+00 1.0E+01 1.0E+02 1.0E+03 3/13 13 Characteristics ACST1235-8FP Figure 6. On-state characteristics (maximum values) Figure 7. Surge peak on-state current versus number of cycles ITM(A) 2.5 100 IH,IL[Tj] / IH,IL[Tj = 25 °C] 2.0 Tj max : Vto = 0.9 V Rd = 38 mΩ 1.5 10 IL 1.0 IH 0.5 Tj = 150°C Tj = 25°C Tj (°C) VTM(V) 1 0 1 2 3 4 5 Figure 8. Non repetitive surge peak on-state current for a sinusoidal pulse with width tp < 10 ms, and corresponding value of I²t 0.0 -50 -25 0 25 50 75 100 125 150 Figure 9. Relative variation of gate trigger current and gate trigger voltage versus junction temperature (typical values) 2 ITSM(A), I2t (A s) IGT,VGT[Tj] / IGT,VGT[Tj = 25 °C] 1000 Tj initial = 25 °C dI/dt limitation: 100 A/μs 3.0 ITSM IGT Q3 2.5 IGT Q1- Q2 100 2.0 I²t 1.5 10 1.0 0.5 Tj (°C) tp(ms) 1 0.01 0.10 1.00 0.0 -50 10.00 Figure 10. Relative variation of holding current and latching current versus junction temperature (typical values) 2.5 VGT Q1- Q2 - Q3 IH,IL[Tj] / IH,IL[Tj = 25 °C] -25 0 25 50 75 100 125 150 Figure 11. Relative variation of critical rate of decrease of main current (dI/dt)c versus reapplied (dV/dt)c (dI/dt)c [ (dV/dt)c ] / Specified (dI/dt)c 3 Tj =150 °C 2.0 2 1.5 IL 1.0 1 IH 0.5 Tj (°C) 0.0 -50 4/13 -25 0 25 50 75 100 125 (dV/dt)c (V/µs) 150 0 0.1 DocID026033 Rev 1 1.0 10.0 100.0 ACST1235-8FP Characteristics Figure 12. Relative variation of critical rate of decrease of main current versus junction temperature (typical values) 10 Figure 13. Relative variation of static dV/dt immunity versus junction temperature (dI/dt)C [T j] / (dI/dt)c [T j=150 °C] 4 dV/dt [T j ] / dV/dt [T j = 150 °C] 9 Device exceeding 8 dV/dt = 5 kV/μs 3 7 VD = V R = 536 V 6 5 2 4 3 1 2 Tj(°C) 1 T j(°C) 0 25 50 75 0 100 125 150 Figure 14. Relative variation of leakage current versus junction temperature for different values of blocking voltage (typical values) IDRM / IRRM[Tj;VDRM / VRRM] / IDRM / IRRM 25 75 100 125 150 Figure 15. Relative variation of the maximum clamping voltage versus junction temperature (minimum values) 1.10 1.0E+00 50 VCL[Tj] / VCL[Tj = 25 °C] VDRM=VRRM = 800 V 1.05 1.0E-01 VDRM=VRRM = 600 V 1.00 1.0E-02 VDRM=VRRM = 400 V 0.95 1.0E-03 0.90 Tj(°C) Tj (°C) 1.0E-04 25 50 75 100 125 150 0.85 -50 DocID026033 Rev 1 -25 0 25 50 75 100 125 150 5/13 13 Application information ACST1235-8FP 2 Application information 2.1 Typical application description The ACST1235-8FP 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 ACST1235-8FP switch is able to drive an inductive load up to 12 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. Figure 16. AC induction motor control - typical diagram AC motor AC induction motor AC mains Phase shift capacitor + protective air inductance ACST Rg VCC 6/13 MCU DocID026033 Rev 1 ACST Selection of the rotor direction Rg ACST1235-8FP Application information Figure 17. Universal drum motor control – typical diagram Universal motor 12 V AC mains Motor direction setting MCU Speed motor regulation ACST Rg VCC MCU The ACST1235-8FP device is also very effective in controlling resistive loads. Figure 18. Resistive load control – typical diagram Lamp or resistance OUT Variable resistor Diac AC mains Capacitor DocID026033 Rev 1 G COM 7/13 13 Application information 2.2 ACST1235-8FP AC line transient voltage ruggedness In comparison with standard Triac, which need additional protection components against surge voltage, the ACST1235-8FP is self-protected against overvoltage, specified by the new parameter VCL. The ACST1235-8FP switch can safely withstand AC line transient voltages either by clamping the low energy spikes, such as the inductive spikes at switchoff, 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 19 represents the ACST1235-8FP 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 limits 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 ACST1235-8FP folds back safely to the on state as shown in Figure 20. The ACST1235-8FP recovers its blocking voltage capability after the surge and the next zero crossing current. Such a non repetitive test can be done at least 10 times on each AC line voltage polarity. Figure 19. Overvoltage ruggedness test circuit for resistive and inductive loads for IEC 61000-4-5 standards R = 11 Ω, L = 3 µH, VPP = 2 kV Rg = 62 Ω 2 kV surge Rgene Filtering unit Model of the load R L ACST AC mains Rg 8/13 DocID026033 Rev 1 ACST1235-8FP Application information Figure 20. Typical voltage and current waveforms across the ACST1235-8FP during IEC 61000-4-5 standard test Vpeak 1.2/50 µs voltage surge 0 V Ipeak= 180 A 8/20 µs current surge I 0 (dl/dt)BO = 150 A/µs DocID026033 Rev 1 9/13 13 Package information 3 ACST1235-8FP Package information • Lead-free package • Recommended torque: 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. Figure 21. TO-220FPAB dimension definitions A B H Dia L6 L2 L7 L3 L5 F1 L4 F2 F G1 G 10/13 D DocID026033 Rev 1 E ACST1235-8FP Package information Table 6. TO-220FPAB dimension values Dimensions Ref. Millimeters Inches Min. Max. Min. Max. A 4.4 4.6 0.173 0.181 B 2.5 2.7 0.098 0.106 D 2.5 2.75 0.098 0.108 E 0.45 0.70 0.018 0.027 F 0.75 1 0.030 0.039 F1 1.15 1.70 0.045 0.067 F2 1.15 1.70 0.045 0.067 G 4.95 5.20 0.195 0.205 G1 2.4 2.7 0.094 0.106 H 10 10.4 0.393 0.409 L2 16 Typ. 0.63 Typ. L3 28.6 30.6 1.126 1.205 L4 9.8 10.6 0.386 0.417 L5 2.9 3.6 0.114 0.142 L6 15.9 16.4 0.626 0.646 L7 9.00 9.30 0.354 0.366 Dia. 3.00 3.20 0.118 0.126 DocID026033 Rev 1 11/13 13 Ordering information 4 ACST1235-8FP Ordering information Figure 22. Ordering information scheme ACS T 12 35 - 8 FP Series AC switch Topology T = Triac On-state rms current 12 = 12 A Sensitivity 35 = 35 mA Voltage 8 = 800 V Package FP = TO-220FPAB Table 7. Ordering information 5 Order code Marking Package Weight Base qty Packing mode ACST1235-8FP ACST1235-8 TO-220FPAB 2.0 g 50 Tube Revision history Table 8. Document revision history 12/13 Date Revision 24-Apr-2014 1 Changes First issue. DocID026033 Rev 1 ACST1235-8FP 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. 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