® ACS120-7SB/SFP/ST ASD™ AC Switch Family MAIN APPLICATIONS AC static switching in appliance control systems Drive of low power high inductive or resistive loads like - relay, valve, solenoid, dispenser - pump, fan, micro-motor - defrost heater ■ AC LINE SWITCH COM ■ G OUT DPAK ACS120-7SB FEATURES ■ ■ ■ ■ ■ ■ Blocking voltage : VDRM / VRRM = +/-700V Avalanche controlled : VCL typ = 1100 V Nominal conducting current : IT(RMS) = 2A Gate triggering current : IGT < 10 mA Switch integrated driver High noise immunity : static dV/dt >500V/µs BENEFITS Needs no more external protection snubber or varistor Enables equipment to meet IEC 61000-4-5 Reduces component count up to 80 % Interfaces directly with the microcontroller Eliminates any gate kick back on the microcontroller Allows straightforward connection of several ACS™ on same cooling pad. G COM OUT TO-220FPAB ACS120-7SFP G COM OUT ■ ■ ■ TO-220AB ACS120-7ST ■ ■ ■ FUNCTIONAL DIAGRAM OUT DESCRIPTION The ACS120 belongs to the AC line switch family built around the ASD™ concept. This high performance switch circuit is able to control a load up to 2 A. The ACS™ switch embeds a high voltage clamping structure to absorb the inductive turn off energy and a gate level shifter driver to separate the digital controller from the main switch. It is triggered with a negative gate current flowing out of the gate pin. S ON D COM April 2003 - Ed: 2A G 1/11 ACS120-7SB/SFP/ST ABSOLUTE RATINGS (limiting values) For either positive or negative polarity of pin OUT voltage in respect to pin COM voltage Symbol VDRM / VRRM IT(RMS) ITSM I2t Parameter Repetitive peak off-state voltage RMS on-state current full cycle sine wave 50 to 60 Hz Value Unit Tj = -10 °C 700 V 2 A A DPAK Tc = 115 °C TO-220FPAB Tc = °C TO-220AB Tc = 115 °C Non repetitive surge peak on-state current Tj initial = 25°C, full cycle sine wave F =50 Hz 20 F =60 Hz 11 A Fusing capability tp = 10ms 2.2 A²s F = 120 Hz 50 A/µs Tj = 125°C dI/dt Repetitive on-state current critical rate of rise IG = 10mA (tr < 100ns) VPP Non repetitive line peak pulse voltage 2 kV Tstg Storage temperature range - 40 to + 150 °C Tj Operating junction temperature range - 30 to + 125 °C Tl Maximum lead soldering temperature during 10s note 1 260 °C Value Unit Note 1: according to test described by IEC61000-4-5 standard & Figure 3. GATE CHARACTERISTICS (maximum values) Symbol PG (AV) Parameter 0.1 W IGM Average gate power dissipation Peak gate current (tp = 20µs) 1 A VGM Peak positive gate voltage (in respect to pin COM) 5 V THERMAL RESISTANCES Symbol Rth (j-a) Parameter Junction to ambient S = 0.5cm² DPAK TO-220FPAB Rth (j-l) Junction to tab/lead for full cycle sine wave conduction S = Copper surface under Tab 2/11 Value Unit 70 °C/W 60 °C/W TO-220AB 60 °C/W DPAK 2.6 °C/W TO-220FPAB 3.5 °C/W TO-220AB 2.6 °C/W ACS120-7SB/SFP/ST PARAMETER DESCRIPTION Parameter Symbol Parameter description IGT Triggering gate current VGT Triggering gate voltage VGD Non-triggering gate voltage IH Holding current IL Latching current VTM Peak on-state voltage drop VTO On state threshold voltage Rd On state dynamic resistance IDRM / IRRM Maximum forward or reverse leakage current dV/dt Critical rate of rise of off-state voltage (dV/dt)c Critical rate of rise of commutating off-state voltage (dI/dt)c Critical rate of decrease of commutating on-state current VCL Clamping voltage ICL Clamping current ELECTRICAL CHARACTERISTICS For either positive or negative polarity of pin OUT voltage in respect to pin COM voltage. Symbol Test Conditions Values Unit IGT VOUT=12V (DC) RL=140Ω QII - QIII Tj=25°C MAX 10 mA VGT VOUT=12V (DC) RL=140Ω QII - QIII Tj=25°C MAX 1 V VGD VOUT=VDRM RL=3.3kΩ Tj=125°C MIN 0.15 V IH IOUT= 100mA gate open Tj=25°C MAX 45 mA IL IG= 20mA Tj=25°C MAX 65 mA Tj=25°C MAX 1.3 V VTO Tj=125°C MAX 0.85 V Rd Tj=125°C MAX 200 mΩ Tj=25°C MAX 2 µA Tj=125°C MAX 200 MIN 500 V/µs VTM IOUT = 2.8A tp=380µs IDRM / IRRM VOUT = 700V dV/dt VOUT=460V gate open Tj=110°C (dV/dt)c = 20V/µs Tj=125°C MIN 1 A/ms ICL = 1mA Tj=25°C TYP 1100 V (dI/dt)c VCL tp=1ms 3/11 ACS120-7SB/SFP/ST AC LINE SWITCH BASIC APPLICATION The ACS120 device is well adapted to Washing machine, dishwasher, tumble drier, refrigerator, air-conditioning systems, and cookware. It has been designed especially to switch on & off low power loads such as solenoid, valve, relay, dispenser, micro-motor, pump, fan and defrost heaters. Pin COM: Common drive reference to connect to the power line neutral Pin G: Switch Gate input to connect to the digital controller Pin OUT: Switch Output to connect to the load This ACS™ switch is triggered with a negative gate current flowing out of the gate pin G. It can be driven directly by the digital controller through a resistor as shown on the typical application diagram. Thanks to its thermal and turn off commutation performances, the ACS120 switch is able to drive with no turn off additional snubber an inductive load up to 2 A. TYPICAL APPLICATION DIAGRAM LOAD L L AC MAINS M R N OUT ACS120 S ON D COM G ST72 MCU - Vcc HIGH INDUCTIVE SWITCH-OFF OPERATION At the end of the last conduction half-cycle, the load current reaches the holding current level IH , and the ACS™ switch turns off. Because of the inductance L of the load, the current flows then through the avalanche diode D and decreases linearly to zero. During this time, the voltage across the switch is limited to the clamping voltage VCL. The energy stored in the inductance of the load depends on the holding current IH and the inductance (up to 10 H); it can reach about 10 mJ and is dissipated in the clamping diode section. The ACS switch sustains the turn off energy because its clamping section is designed for that purpose. 4/11 ACS120-7SB/SFP/ST Fig. A: Turn-off operation of the ACS120 switch with an electro-valve: waveform of the pin OUT current IOUT and voltage VOUT. Fig. B: ACS120 switch static characteristic. IOUT IH VCL VOUT AC LINE TRANSIENT VOLTAGE RUGGEDNESS The ACS120 switch is able to sustain safely the AC line transient voltages either by clamping the low energy spikes or by breaking over under high energy shocks, even with high turn-on current rises. The test circuit of the figure C is representative of the final ACS application and is also used to stress the ACS switch according to the IEC 61000-4-5 standard conditions. Thanks to the load, the ACS switch sustains the voltage spikes up to 2 kV above the peak line voltage. It will break over safely even on resistive load where the turn on current rise is high as shown on figure D. Such non repetitive test can be done 10 times on each AC line voltage polarity. Fig. C: Overvoltage ruggedness test circuit for resistive and inductive loads according to IEC61000-4-5 standards. R = 150Ω, L = 10µH, VPP = 2kV. R Fig. D: Current and Voltage of the ACS120 during IEC61000-4-5 standard test with R, L & VPP . L OUT ACSxx S SURGE VOLTAGE AC LINE & GENERATOR VAC + V PP ON D G COM RG = 220Ω 5/11 ACS120-7SB/SFP/ST OTHER FIGURES Maximum power dissipation vs RMS on state current. RMS on-state current vs ambient temperature, case temperature Relative variation of thermal impedance junction to ambient vs pulse duration and package Relative variation of gate trigger current vs junction temperature Relative variation of holding, latching and gate current vs junction Relative variation of dV/dt vs Tj Relative variation of (dV/dt)c vs (di/dt)c Surge peak on-state current vs number of cycles Non repetitive surge peak on-state current for a sinusoidal pulse with tp<10ms, and corresponding of I²t. On-state characteristics (maximal values) Thermal resistance junction to ambient vs copper surface under tab (DPAK) Relative variation of critical (di/dt)c vs junction temperature Fig. 1: Maximum power dissipation versus RMS on-state current. Fig. 2-1: RMS on-state current versus case temperature. P(W) IT(RMS)(A) 2.4 2.4 α=180° 2.2 α=180° 2.2 2.0 2.0 1.8 1.8 1.6 1.6 1.4 1.4 1.2 1.2 1.0 1.0 TO-220AB/DPAK TO-220FPAB 0.8 0.8 0.6 0.6 180° 0.4 α α 0.4 Tc(°C) 0.2 IT(RMS)(A) 0.2 0.0 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Fig. 2-2: RMS on-state current versus ambient temperature. 0 25 50 75 100 125 Fig. 3: Relative variation of thermal impedance versus pulse duration. IT(RMS)(A) K=[Zth/Rth] 1.8 1.E+00 α=180° Printed circuit board FR4 Natural convection S=0.5cm² 1.6 DPAK Zth(j-c) 1.4 TO-220FPAB 1.2 DPAK 1.0 Zth(j-a) 1.E-01 0.8 TO-220FPAB 0.6 0.4 0.2 Tamb(°C) tp(s) 0.0 0 25 50 75 100 125 1.E-02 1.E-02 6/11 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 ACS120-7SB/SFP/ST Fig. 4: Relative variation of gate trigger current, holding current and latching versus junction temperature (typical values). Fig. 5: Relative variation of static dV/dt versus junction temperature. dV/dt [Tj] / dV/dt [Tj = 125°C] IGT, IH, IL[Tj] / IGT, IH, IL [Tj = 25°C] 4.0 8 3.5 7 VOUT=460V 6 3.0 IGT 2.5 5 2.0 4 3 1.5 IL & IH 2 1.0 0.5 1 Tj(°C) Tj(°C) 0 0.0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 Fig. 6: Relative variation of critical rate of decrease of main current versus reapplied dV/dt (typical values). 25 50 75 100 125 Fig. 7: Relative variation of critical rate of decrease of main current versus junction temperature. (dI/dt)c [(dV/dt)c] / Specified (dI/dt)c (dI/dt)c [Tj] / (dI/dt)c [Tj = 125°C] 5.0 20 VOUT=400V 4.5 16 3.5 14 3.0 12 2.5 10 2.0 8 1.5 6 1.0 4 0.5 VOUT=400V 18 4.0 2 (dV/dt)c (V/µs) 0.0 Tj(°C) 0 0 5 10 15 20 25 30 35 40 45 50 Fig. 8: Surge peak on-state current versus number of cycles. 25 50 75 100 125 Fig. 9: Non repetitive surge peak on-state current for a sinusoidal pulse with width tp < 10ms, and corresponding value of I²t. ITSM(A), I²t (A²s) ITSM(A) 1000 22 Tj initial=25°C 20 dI/dt limitation: 50A/µS 18 t=20ms Non repetitive Tj initial=25°C 16 100 14 ITSM 12 10 8 Repetitive Tab=105°C 10 6 I²t 4 2 tp(ms) Number of cycles 1 0 1 10 100 1000 0.01 0.10 1.00 10.00 7/11 ACS120-7SB/SFP/ST Fig. 10: values). On-state characteristics Fig. 11: Thermal resistance junction to ambient versus copper surface under tab (printed circuit board FR4, copper thickness: 35µm) (maximum Rth(j-a)(°C/W) ITM(A) 100 10.00 DPAK Tj max. : Vto=0.85V Rd=200mΩ 90 80 70 1.00 60 Tj=125°C 50 40 Tj=25°C 0.10 30 20 S(cm²) 10 VTM(V) 0 0.01 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 3.5 5 10 15 20 25 30 ORDERING INFORMATION ACS 1 20 - 7 S AC Switch VDRM 7 = 700V Number of switches IT(RMS) 20 = 2.0A 8/11 X Package B = DPAK FP = TO-220FPAB T = TO-220AB Gate Sensitivity S= 10mA 35 40 ACS120-7SB/SFP/ST PACKAGE OUTLINE MECHANICAL DATA DPAK DIMENSIONS REF. Millimeters Inches Min. Max Min. Max. A 2.20 2.40 0.086 0.094 A1 0.90 1.10 0.035 0.043 A2 0.03 0.23 0.001 0.009 B 0.64 0.90 0.025 0.035 B2 5.20 5.40 0.204 0.212 C 0.45 0.60 0.017 0.023 C2 0.48 0.60 0.018 0.023 D 6.00 6.20 0.236 0.244 E 6.40 6.60 0.251 0.259 G 4.40 4.60 0.173 0.181 H 9.35 10.10 0.368 0.397 L2 0.80 typ. 0.031 typ. L4 0.60 1.00 0.023 0.039 V2 0° 8° 0° 8° FOOT PRINT DPAK 6.7 6.7 3 3 1.6 1.6 2.3 2.3 9/11 ACS120-7SB/SFP/ST PACKAGE OUTLINE MECHANICAL DATA TO-220FPAB DIMENSIONS REF. B Dia L6 L2 L7 L3 L5 D F1 L4 Max. Min. Max. A 4.4 4.6 0.173 0.181 B 2.5 2.7 0.098 0.106 F G1 G 10/11 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 F2 E Inches Min. A H Millimeters 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 ACS120-7SB/SFP/ST PACKAGE OUTLINE MECHANICAL DATA TO-220AB DIMENSIONS REF. A H2 Dia C L5 L7 L6 L2 F2 F1 D L9 L4 Min. Max. Min. 4.40 4.60 0.173 0.181 C 1.23 1.32 0.048 0.051 D 2.40 2.72 0.094 0.107 E 0.49 0.70 0.019 0.027 G1 E G Max. F 0.61 0.88 0.024 0.034 F1 1.14 1.70 0.044 0.066 F2 1.14 1.70 0.044 0.066 G 4.95 5.15 0.194 0.202 G1 2.40 2.70 0.094 0.106 H2 10 10.40 0.393 0.409 L4 M Inches A L2 F Millimeters 16.4 typ. 13 0.645 typ. 14 0.511 0.551 L5 2.65 2.95 0.104 0.116 L6 15.25 15.75 0.600 0.620 L7 6.20 6.60 0.244 0.259 L9 3.50 3.93 0.137 0.154 M Diam. 2.6 typ. 3.75 3.85 0.102 typ. 0.147 0.151 OTHER INFORMATION ■ Ordering type Marking Package Weight Base qty Delivery mode ACS120-7SB ACS1207S DPAK 0.3 g 75 Tube ACS120-7SB-TR ACS1207S DPAK 0.3 g 2500 Tape & reel ACS120-7SFP ACS1207S TO-220FPAB 2.4 g 50 Tube ACS120-7ST ACS1207S TO-220AB 2.3 g 250 Bulk Epoxy meets UL94,V0 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics © 2003 STMicroelectronics - Printed in Italy - All rights reserved. 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