ACS302-5T3 ® ASD™ AC Switch Family THREE LINES AC SWITCH ARRAY MAIN APPLICATIONS AC on-off static switching in appliance & industrial control systems Drive of low power high inductive or resistive loads like: - relay, valve, solenoid, dispenser - pump, fan, micro-motor - low power lamp bulb, door lock ■ ■ FEATURES ■ ■ ■ ■ ■ ■ THREE HIGH VOLTAGE AC SWITCH ARRAY BLOCKING VOLTAGE: VDRM / VRRM = 500V CLAMPING VOLTAGE: VCL = 600 V NOMINAL CONDUCTING CURRENT PER LINE: IT(RMS) = 0.2 A NOMINAL CONDUCTING CURRENT FOR TOTAL ARRAY: IT(RMS) = 0.4 A GATE TRIGGERING CURRENT: IGT < 5 mA BENEFITS Needs no external overvoltage protection Enables equipment to meet IEC61000-4-5 standard Interfaces directly with a microcontroller Eliminates any stressing gate kick back on the microcontroller Array structure: design simplified, increase reliability and space saving aspects Mounting in SO-20 package enables the device to meet IEC335-1 standard SO-20 Wired package PIN-OUT 11.2cm = 2.54’’ OUTPUT 1 20 2 19 COM Pin 11 8.5cm ■ ■ 1 OUTPUT 2 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 GATE 1 GATE 2 3.81cm = 1.5’’ Pin 1 ■ ■ ■ OUTPUT 3 Pins 2, 3, 4, 6, 7, 8, 10, and 19, 17, 15, 14, 12 are not connected. GATE 3 2.54cm = 1’’ COM ■ DESCRIPTION The ACS302 belongs to the AC line switch family built around the ASD™ concept. This high performance device inludes 3 bidirectionnal AC switches able to control an 0.2A resistive or inductive load device. Each 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. FUNCTIONAL DIAGRAM OUT1 OUT2 OUT3 ACS302 S1 S2 COM G1 S3 G2 G3 ASD and ACS are trademarks of STMicroelectronics. January 2003 - Ed: 2 1/8 ACS302-5T3 ABSOLUTE RATINGS (limiting values) Symbol VDRM / VRRM IT(RMS) Parameter Repetitive peak off-state voltage Tj = 125 °C RMS on-state current full cycle sine wave 50 to 60 Hz Value Unit 500 V Tamb = 110 °C One switch on = 0.2 A Tamb = 90 °C Array: 0.4 A A ITSM Non repetitive surge peak on-state current Tj initial = 25°C, full cycle sine wave F =50 Hz 7.3 F =60 Hz 7.6 A dI/dt Critical rate of repetitive rise of on-state current IG = 10mA with tr = 100ns F =120 Hz 20 A/µs note 1 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 temperature for soldering during 10s 260 °C Value Unit 0.1 W Note 1: according to test described by IEC61000-4-5 standard and figure 3. SWITCH GATE CHARACTERISTICS (maximum values) Symbol PG (AV) Parameter Average gate power dissipation IGM Peak gate current (tp = 20µs) 1 A VGM Peak positive gate voltage (respect to the pin COM) 5 V THERMAL RESISTANCES Symbol Rth (j-a) Parameter Junction to ambient Value Unit 93 °C/W ELECTRICAL CHARACTERISTICS Symbol Values Unit IGT VOUT = 12V RL = 140Ω Tj=25°C MAX 5 mA VGT VOUT = 12V RL = 140Ω Tj=25°C MAX 0.9 V VGD VOUT = VDRM RL = 3.3kΩ Tj=125°C MIN 0.15 V Tj=25°C TYP 20 mA MAX 45 IH IL IOUT = 100mA gate open IG = 10mA Tj=25°C VTM IOUT = 0.3A IDRM IRRM VOUT = VDRM VOUT = VRRM dV/dt VOUT = 400V gate open (dI/dt)c VCL 2/8 Test Conditions tp = 380µs TYP 25 MAX 50 mA Tj=25°C MAX 1.2 V Tj=25°C MAX 2 µA Tj=125°C MAX 200 Tj=110°C MIN 300 V/µs IOUT > 0 Tj=110°C MIN 0.1 A/ms (dV/dt)c = 10V/µs IOUT < 0 Tj=110°C MIN 0.15 A/µs ICL = 1mA Tj=25°C TYP 600 V (dV/dt)c = 5V/µs tp = 1ms ACS302-5T3 AC LINE SWITCH BASIC APPLICATION The ACS302 device is well adapted to washing machines, dishwashers, tumble driers, refrigerators, water heaters, and cookwares. It has been designed especially to switch ON & OFF low power loads such as solenoids, valves, relays, micro-motors, pumps, fans, door locks and low power lamp bulbs. ELECTRICAL CHARACTERISTICS Symbol Parameter 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 Vt0 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 decrease of commutating off-state voltage (dI/dt)c Critical rate of decrease of commutating on-state current VCL Clamping voltage ICL Clamping current Pin COM: Common drive reference, to connect to the power line neutral Pin G: Switch Gate input to connect to the digital controller through a resistor Pin OUT: Switch Output, to connect to the load Each 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. No protection devices are required between the gates and common terminals. In appliances systems, this ACS™ switch intends to drive low power loads in full cycle ON / OFF mode. Thanks to its thermal and turn off commutation performances, the ACS302-5TA switch is able to drive three loads up to 0.2A each, as, for example, two water valves and a door lock in a dishwasher, without any additionnal turn-off snubber. TYPICAL APPLICATION DIAGRAM VALVE / DISPENSER DOOR LOCK PUMP / FAN L MAINS M N OUT1 OUT2 OUT3 ACS302 S1 S2 COM Vcc S3 G1 PA0 G2 PA1 Vss ST72 MCU G3 PA2 3/7 ACS302-5T3 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 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 20 mJ and is dissipated in the clamping diode section that is especially designed for that purpose. Fig. 1: Turn-off operation of the ACS302 switch with an electro valve: waveform of the pin OUT current IOUT & voltage VOUT. Fig. 2: ACS302 switch static characteristic. IOUT IH VCL VOUT AC LINE TRANSIENT VOLTAGE RUGGEDNESS The ACS302 switch is able to withstand safely the AC line transient voltages either by clamping the low energy spikes or by breaking over under high energy shocks. The test circuit of the figure 3 is representative of the final ACS™ application and is also used to stress the ACS switch according to the IEC61000-4-5 standard conditions. Thanks to the load, the ACS™ switch withstands 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 4. Such non repetitive test can be done 10 times on each AC line voltage polarity. Fig. 3: Overvoltage ruggedness test circuit for resistive and inductive loads according to IEC61000-4-5 standard. R = 150Ω, L = 5µH, VPP = 2kV. R L OUT ACS302 G SURGE VOLTAGE AC LINE & GENERATOR VAC + V PP COM 4/8 Fig. 4: Current and Voltage of the ACS™ during IEC61000-4-5 standard test with R = 150Ω, L = 5µH & VPP = 2kV. ACS302-5T3 Fig. 5: Maximum power dissipation versus RMS on-state current (per switch). Fig. 6: RMS on-state current versus ambient temperature. P(W) IT(RMS)(A) 0.20 0.45 α = 180° 0.18 α = 180° 3 switches ON 0.40 0.16 0.35 0.14 0.30 0.12 0.25 1 switch ON 0.10 0.20 0.08 0.15 0.06 180° 0.04 α α 0.02 0.10 0.05 IT(RMS)(A) 0.00 0.02 0.04 0.06 0.08 0.10 0.12 Tamb(°C) 0.00 0.00 0.14 0.16 0.18 0 0.20 Fig. 7: Relative variation of thermal impedance junction to ambient versus pulse duration . 25 50 75 100 125 Fig. 8: Relative variation of gate trigger current versus junction temperature (typical value). IGT [Tj] / IGT [Tj=25°C] K=[Zth(j-a) / Rth(j-a)] 1.E+00 3.0 2.5 2.0 1.E-01 1 cell 1.5 3 cells 1.0 1.E-02 0.5 tp(s) 1.E-03 1.E-04 Tj(°C) 0.0 1.E-03 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02 -40 -30 -20 -10 1.E+03 Fig. 9: Relative variation of holding and latching current versus junction temperature (typical values). 0 10 20 30 40 50 60 70 80 90 100 110 120 130 Fig. 10: Surge peak on-state current versus number of cycles. IL,IH [Tj] / IL,IH [Tj=25°C] ITSM(A) 2.0 8 1.8 7 1.6 t=20ms 6 1.4 One cycle 1.2 5 1.0 4 0.8 Tj initial=25°C Non repetitive 3 Tamb=25°C Repetitive 0.6 2 0.4 1 0.2 Tj(°C) 0.0 Number of cycles 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 1 10 100 1000 5/8 ACS302-5T3 Fig. 11: Non-repetitive surge peak on-state current for a sinusoidal pulse with width tp<10ms, and corresponding value of I2t. Fig. 12: On-state characteristics (maximum values). ITM(A) ITSM(A),I²t(A²s) 10.00 100.0 Tj initial=25°C dI/dt limitation: 20A/µs ITSM 10.0 1.00 1.0 0.10 I²t tp(ms) 0.1 0.01 0.10 VTM(V) 1.00 0.01 10.00 0.0 0.5 1.0 1.5 2.0 Fig. 13: Relative variation of critical (dI/dt)c versus junction temperature . (dI/dt)c [Tj] / (dI/dt)c [Tj=110°C] 3.0 2.5 2.0 1.5 1.0 0.5 Tj(°C) 0.0 0 20 40 60 80 100 120 ORDERING INFORMATION ACS AC Switch 3 02 ITRMS xx = x.xA Switch Number 6/8 Tj max. Vto = 0.85 V Rd = 400 mΩ - 5 T VDRM y = y00V 3 Package: 3 = SO-20 Gate Sensitivity T = 5mA 2.5 3.0 3.5 4.0 4.5 5.0 ACS302-5T3 PACKAGE OUTLINE MECHANICAL DATA SO-20 DIMENSIONS REF. D A B Millimeters Inches hx45° K A1 e E C L H A A1 B C D E e H h L K Min. Typ. Max. Min. 2.35 0.10 0.33 0.23 12.6 7.40 2.65 0.20 0.51 0.32 13.0 7.60 0.092 0.004 0.013 0.009 0.484 0.291 1.27 10.0 0.25 0.50 Typ. Max. 0.104 0.008 0.020 0.013 0.512 0.299 0.050 10.65 0.394 0.75 0.010 1.27 0.020 8° (max) 0.419 0.029 0.050 FOOT PRINT DIMENSIONS (in millimeters) 11.2 0.6 8.5 1.27 OTHER INFORMATION Ordering type Marking Package Weight Base qty Delivery mode ACS302-5T3 ACS302 SO-20 0.55g 40 Tube 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. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore Spain - Sweden - Switzerland - United Kingdom - United States. http://www.st.com 7/8