ACST1635-8FP Overvoltage protected AC switch Datasheet production data Features ■ Enables equipment to meet IEC 61000-4-5 surge with overvoltage crowbar technology ■ High noise immunity against static dV/dt and IEC 61000-4-4 burst G OUT COM ■ High junction temperature: Tj = 150 °C ■ Needs no external over-voltage protection ■ VCL gives headroom before clamping then crowbar action ■ Reduces component count ■ ECOPACK®2 compliant component ■ Complies with UL standards (File ref: E81734) ■ Provides UL certified insulation rated at 1500 V rms TO-220FPAB ACST1635-8FP Figure 1. Functional diagram OUT Applications ■ AC static switching in appliances and industrial control systems ■ Drive of medium power AC loads such as: – Coffee making appliances – Universal drum motor of washing machine – Compressor of fridge or air conditioner – Heating and cooking appliances – Vacuum cleaners – Solid state relays G COM Description The ACST1635-8FP belongs to the AC power switch range built with A.S.D.® technology. This high performance device is designed for home appliances or industrial systems and drives loads up to 16 A. This ACST1635-8FP switch embeds a Triac structure with a high voltage crowbar device to absorb the inductive turn-off energy and withstand line surges such as those described in the IEC 61000-4-5 (surge immunity test). A.S.D. is a registered trademark of STMicroelectronics September 2012 This is information on a product in full production. Doc ID 023630 Rev 1 1/13 www.st.com 13 Characteristics ACST1635-8FP 1 Characteristics Table 1. Absolute ratings (limiting values) Symbol IT(RMS) ITSM I2t Parameter On-state rms current (full sine wave) Non repetitive surge peak on-state current Tj initial = 25 °C, (full cycle sine wave) I2t for fuse selection VDRM/VRRM Repetitive peak off-stage voltage, gate open Value Unit Tc = 84 °C 16 A F = 50 Hz, tp = 20 ms 140 F = 60 Hz, tp = 16.7 ms 147 tp = 10 ms 130 A2 s Tj = 150 °C 800 V A Critical rate of rise on-state current IG = 2 x IGT, tr 100 ns F = 120 Hz 100 A/µs VPP(1) Non repetitive line peak pulse voltage Tj = 25 °C 2 kV PG(AV) Average gate power dissipation Tj = 150 °C 0.1 W PGM Peak gate power dissipation (tp = 20 µs) Tj = 150 °C 10 W IGM Peak gate current (tp = 20 µs) Tj = 150 °C 1 A Tstg Storage temperature range -40 to +150 °C Tj Operating junction temperature range -40 to +150 °C TL Lead temperature for soldering during 10 s 260 °C Insulation rms voltage (60 seconds) 1.5 kV dI/dt Vins 1. according to test described by standard IEC 61000-4-5 Table 2. Symbol Electrical characteristics Test conditions Quadrant Tj Value Unit IGT VOUT = 12 V, RL = 33 I - II - III 25 °C MAX. 35 mA IGT VOUT = 12 V, RL = 33 I - II - III 25 °C MIN. 1.75 mA VGT VOUT = 12 V, RL = 33 I - II - III 25 °C MAX. 1.0 V VGD VOUT = VDRM, RL = 3.3 k I - II - III 150 °C MIN. 0.2 V 25 °C MAX. 30 mA 25 °C MAX. 40 mA IH (1) IL IOUT = 500 mA IG = 1.2 x IGT I - II - III dV/dt (1) VOUT = 67% VDRM, gate open 125 °C MIN. 1000 V/µs dV/dt (1) VOUT = 67% VDRM, gate open 150°C MIN. 300 V/µs 125 °C MIN. 36 A/ms 150 °C MIN. 12 A/ms 125 °C MIN. 12 A/ms 150 °C MIN. 4 A/ms 25 °C MIN. 850 V (dI/dt)c(1) (dV/dt)c 0.1 V/µs (dI/dt)c(1) Without snubber VCL ICL = 0.1 mA, tp = 1 ms 1. For both polarities of OUT pin referenced to COM pin 2/13 Doc ID 023630 Rev 1 ACST1635-8FP Table 3. Characteristics Static characteristics Symbol Test conditions VTM(1) VT0 (1) Rd(1) Value Unit IOUT = 22.6 A, tp = 500 µs Tj = 25 °C MAX. 1.5 V Threshold voltage Tj = 150 °C MAX. 0.9 V Dynamic resistance Tj = 150 °C MAX. 30 m 1 µA 500 µA 2 mA Value Unit Tj = 25 °C IDRM IRRM VOUT = VDRM/ VRRM Tj = 125 °C MAX. Tj = 150 °C 1. For both polarities of OUT pin referenced to COM pin Table 4. Thermal characteristics Symbol Parameter Rth(j-c) Junction to case (AC) 3.2 °C/W Rth(j-a) Junction to ambient 60 °C/W Figure 2. 22 Maximum power dissipation versus Figure 3. rms on-state current P(W) 18 180° 20 On-state rms current versus case temperature IT(RMS)(A) 16 18 14 16 14 12 12 10 10 8 8 6 6 4 4 2 2 IT(RMS)(A) 0 0 2 4 Figure 4. 3.0 6 8 10 12 14 16 On-state rms current versus ambient temperature (free air convection) TC(°C) 0 0 25 Figure 5. IT(RMS)(A) 1.0E+00 50 75 100 125 150 Relative variation of thermal impedance versus pulse duration K = [Zth / Rth] Zth(j-c) 2.5 2.0 Zth(j-a) 1.0E-01 1.5 1.0 0.5 0.0 0 Ta(°C) 25 50 75 tp(s) 100 125 150 1.0E-02 1.0E-03 1.0E-02 1.0E-01 1.0E+00 1.0E+01 1.0E+02 1.0E+03 1.0E+04 Doc ID 023630 Rev 1 3/13 Characteristics Figure 6. 1000 ACST1635-8FP On-state characteristics (maximum values) Figure 7. ITM(A) 100 10 Tj = 150 °C Tj = 25 °C VTM(V) 1 0 1 Figure 8. 10000 2 3 4 ITSM(A) 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Tjmax: Vto = 0.9 V Rd = 30 mΩ Surge peak on-state current versus number of cycles t = 20 ms One cycle Non repetitive Tj initial = 25 °C Repetitive Tc = 84 °C Number of cycles 5 1 10 Non repetitive surge peak on-state Figure 9. current for a sinusoidal ITSM(A), I²t (A²s) 100 1000 Relative variation of gate trigger current and gate trigger voltage versus junction temperature IGT,VGT[Tj]/IGT,VGT[Tj = 25 °C] 3.0 typical values IGT Q3 2.5 IGT Q1-Q2 Tj initial = 25 °C 1000 2.0 ITSM 1.5 dl /dt limitation: 100 A / µs I²t 100 1.0 0.5 pulse with width tp<10 ms, and corresponding value of I²t 10 0.01 VGT Q1-Q2-Q3 tp(ms) 0.10 1.00 10.00 Tj(°C) 0.0 -50 -30 -10 10 30 50 70 90 110 130 150 Figure 10. Relative variation of holding Figure 11. Relative variation of critical rate of current and latching current versus decrease of main current (dI/dt)c junction temperature versus reapplied (dV/dt)c IH, IL[Tj] / IH, IL[Tj = 25 °C] 3.5 2.0 (dI/dt)c[(dV/dt)c]/Specified(dI/dt)c Tj=125 °C and 150 °C typical values typical values 3.0 1.5 2.5 2.0 1.0 1.5 IL 1.0 0.5 IH 0.5 (dV/dt)c (V/µs) Tj(°C) 0.0 -50 4/13 -30 -10 10 30 50 0.0 70 90 110 130 150 0.1 Doc ID 023630 Rev 1 1.0 10.0 100.0 ACST1635-8FP Characteristics Figure 12. Relative variation of critical rate of decrease of main current versus junction temperature 20 (dl / dt)c [Tj] / (dl / dt)c [Tj = 150 °C] Figure 13. Relative variation of static dV/dt immunity versus junction temperature (typical values) 7 dV / dt [Tj] / dV / dt [Tj = 150 °C] typical values 18 VD = VR = 536 V (dV/dt) > 5 KV/µs @ 150 °C exceeding measurements capabilities 6 16 5 14 12 4 10 8 3 6 2 4 1 2 Tj(°C) 0 Tj(°C) 0 25 50 75 100 125 150 Figure 14. Relative variation of the maximal clamping voltage versus junction temperature (minimum value) 1.15 25 75 100 125 150 Figure 15. Relative variation of Leakage current versus junction temperature 1.0E+00 VCL[Tj/VCL[Tj = 25 °C] 50 Relative leakage current A/B* VDRM = VRRM = 800 V 1.0E-01 VDRM = VRRM = 600 V 1.10 1.0E-02 1.05 VDRM = VRRM = 400 V 1.00 1.0E-03 0.95 1.0E-04 0.90 Tj(°C) 1.0E-05 0.85 Tj(°C) -50 -25 0 25 50 75 100 125 150 25 50 75 100 125 150 *A = Leakage current (IDRM = IRRM) at indicated TJ and VDRM = VRRM *B = Leakage current (IDRM = IRRM) at Tj = 150 °C, VDRM = VRRM = 800 V Doc ID 023630 Rev 1 5/13 Application information ACST1635-8FP 2 Application information 2.1 Typical application descriptions The ACST1635-8FP device can be used to control medium power load, such as AC motors in home appliances. Thanks to its thermal and turn off commutation performances, the ACST1635-8FP switch is able to drive an inductive load up to 16 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 C L ACST ACST Rg Vcc MCU 6/13 Phase shift capacitor + protective air inductance Doc ID 023630 Rev 1 Rg Selection of the rotor direction ACST1635-8FP Application information Figure 17. Universal drum motor control – typical diagram Universal motor Stator Rotor 12V AC Mains Motor direction setting MCU Speed motor regulation ACST Rg Vcc MCU The ACST1635-8FP device is also very effective in controlling resistive loads. Figure 18. Resistive load control - typical diagram Lamp or resistance OUT Variable resistor AC mains Diac Capacitor Doc ID 023630 Rev 1 G COM 7/13 Application information 2.2 ACST1635-8FP AC line transient voltage ruggedness In comparison with standard Triacs, which needs additional protection components against surge voltage, the ACST1635-8FP is self-protected against over-voltage, specified by the new parameter VCL. The ACST1635-8FP switch can safely withstand AC line transient voltages either by clamping the low energy spikes, such as the 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 19 represents the ACST1635-8FP 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 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 ACST1635-8FP folds back safely to the on state as shown in Figure 20. The ACST1635-8FP 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 = 6 Ω, L = 2 µH, Vsur ge = 2 kV Rg = 62 Ω Surge generator 2kV surge Rgene Model of the load Filtering unit R L ACST AC mains Rg 8/13 Doc ID 023630 Rev 1 ACST1635-8FP Application information Figure 20. Typical voltage and current waveforms across the ACST1635-8FP during IEC 61000-4-5 standard test V peak = V CL 1.2/50 µs voltage surge V 0 I peak = 290 A 8/20 µs current surge I dI/dt = 150 A/µs Doc ID 023630 Rev 1 0 9/13 Ordering information scheme 3 ACST1635-8FP Ordering information scheme Figure 21. Ordering information scheme ACST 16 35 - 8 FP AC switch Triac topology On-state rms current 16 = 16 A Triggering gate current 35 = 35 mA Voltage 8 = 800 V Package FP = TO-220FPAB 10/13 Doc ID 023630 Rev 1 ACST1635-8FP 4 Package information 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 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 5. TO-220FPAB dimensions Dimensions Ref. A 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 B H Dia L6 L2 L7 L3 L5 F1 L4 Millimeters D F2 L2 F E 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 G1 G Doc ID 023630 Rev 1 11/13 Ordering information 5 Ordering information Table 6. 6 Ordering information Order code Marking Package Weight Base qty. Packing mode ACST1635-8FP ACST1635-8FP TO-220FPAB 2.0 g 50 Tube Revision history Table 7. 12/13 ACST1635-8FP Document revision history Date Revision 12-Sep-2012 1 Changes First issue. Doc ID 023630 Rev 1 ACST1635-8FP Please Read Carefully: Information in this document is provided solely in connection with ST products. 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