AVS12

A VS12 AUTOMATIC VOLTAGE SWITCH (SMPS < 500W) CONTROLLER s s s s s 50/60Hz FULL COMPATIBILITY INTEGRATED VOLTAGE REGULATOR TRIGGERING PULSE TRAIN OF THE TRIAC PARASITIC FILTER LOW POWER CONSUMPTION TRIAC s s s s HIGH EFFICIENCY AND SAFETY SWITCHING UNINSULATED PACKAGE : AVS12CB VDRM = ± 600V IT(RMS): 12A A1 A2 G P DIP8 (Plastic) B TO 220AB (Plastic) DESCRIPTION The AVS12 kit is an automatic mains selector (110/220V AC) to be used in SMPS < 500 W. It is composed of 2 devices : • The Controller is optimized for low consumption and high security triggering of the triac. When connected to VSS, the mode input activates an additional option. If the main power drops from 220V to 110V, the triac control remains locked to the 220V mode and avoids any high voltage spike when the voltage comes back to 220V. When connected to VDD, the mode input desactivates this option. • The TRIAC is specially designed for this application. An optimization between sensitivity and dynamic parameters of the triac gate highly reduces the losses of supply resistor and allows excellent immunity against disturbances. PIN CONNECTION V Osc / In Osc / Out V 1 2 3 4 8 7 6 5 V Mode N.C. V March 1995 1/8 AVS12 BLOCK DIAGRAM AVS1ACP08 MODE 7 Reset MR Peak Voltage Dectector AVS12CB VSS 1 VDD 4 VM 8 Supply Parasitic Filter Mains mode CP Controller Q A2 2 Zero Crossing Detector OSC/IN 2 OSC/OUT 3 Oscillator Triggering Q CP Time Controller S 5 VG G 3 1 4 V DD A1 ABSOLUTE MAXIMUM RATINGS CONTROLLER AVS1ACP08 Symb ol VSS VI / VO II / IO Tstg Toper Supply voltage I / O voltage I / O current Storage Temperature Operating Temperature code ”C” Parameter Min. - 12 VSS - 0.5 - 40 - 60 0 Value Max. 0.5 0.5 + 40 + 150 + 70 V V mA °C °C Unit TRIAC AVS12CB Tj = 25°C (unless otherwise specified) Symb ol VDRM IT(RMS) ITSM I2t Parameter Repetitive peak off-state voltage (2) RMS on-state current (360° conduction angle) Non repetitive surge peak on-state current ( Tj initial = 25°C ) I2t value TC = 70°C t = 8.3ms t = 10ms t = 10ms Repetitive F = 50Hz Non Repetitive dv/dt * Tstg Tj Linear slope up to 0.67 VDRM Storage Temperature Operating Junction Temperature – di/dt = 1A/µs Value ± 600 12 105 100 50 20 Unit V A A A2s dI/dt Critical rate of rise of on-state current (1) A/µs 100 50 - 40 + 150 0 + 110 V/µs °C Gate open Tj = 110°C ( 1) Gate supply : IG =100mA (2) Tj = 110° C * For either polarity of electrode A2 voltage with reference to electrode A1 2/8 AVS12 THERMAL RESISTANCES TRIAC AVS12CB Symb ol Rth (j-a) Junction-to-ambient Parameter Value 60 3 2.3 Unit °C/W °C/W °C/W Rth (j-c) DC Junction-to-case for DC Rth (j-c) AC Junction-to-case for 360° conduction angle ( f= 50Hz) DC GENERAL ELECTRICAL CHARACTERISTICS TRIAC AVS12CB Symb ol VGD VTM * IDRM * Parameter Min. VD = V DRM RL = 3.3kΩ Pulse duration> 20µs ITM = 17A tp = 10ms VDRM rated Gate open Tj = 110°C Tj = 25°C Tj = 25°C Tj = 110°C 0.2 1.75 10 500 Value Max. V V µA Unit * For either polarity of electrode A2 voltage with reference to electrode A1. 3/8 AVS12 Fig. 1 :Maximum RMS power dissipation versus RMS onstate current (F = 60Hz). (Curves are cut off by (dI/dt)c limitation) Fig. 2 :Correlation between maximum mean power dissipation and maximum allowable temperatures (Tamb and Tcase) for different thermal resistances heatsink + contact. Fig. 3 :Non repetitive surge peak on state current for a sinusoidal pulse with width : t ≤ 10ms, and corresponding value of I2t. Fig. 4 :On-state characteristics (maximum values). 4/8 AVS12 DC GENERAL ELECTRICAL CHARACTERISTICS (continued) CONTROLLER AVS1ACP08 Toper = 25°C (unless otherwise specified) Symbo l Parameter Min VSS (pin 1) (Vreg) ISS (pin 1) (Vreg) (@ VSS = 9V) ISS (pin 1) (@ triac gate non connected) f (pin 3) (@ R = 91kΩ) (C = 100pF) VM (pin 8) VM (pin 8) (1) VM (pin 8) VM (pin 8) (2) (2) Vth (3) Vh (3) Vth (3) Vh (3) Shunt regulator Supply current - 10 0.4 Value T yp -9 Max -8 30 V mA Unit Quiescent current 0.7 mA Oscillator frequency 42 44 46 kHz Peak voltage of detection high-threshold Peak voltage of detection hysteresis Zero-crossing detection high-threshold Zero-crossing detection hysteresis Power-on-reset activation threshold Power-down-reset activation threshold VIL VIH (4) (4) 4.08 0.370 95 27 4.25 0.4 110 50 Vreg x 0.89 4.42 0.420 125 80 V V mV mV V Vrazht (4) Vrazlt (4) Mode (pin 7) 3 6.5 0.3 Vreg V V mV µA 0.7 Vreg 650 + 10 VG (pin 5) VOL (IVG = 25mA) Leakage current (VG = V DD) NOTES : (1) : This value gives a typical noise immunity on the zero-crossing detection of 110mV x 1018/18 = 6.20V on the main supply (2) : See following diagram (3) : Voltage referred to VSS (4) : Voltage referred to VDD POWER-ON AND POWER-OFF RESET BEHAVIOUR Undetermined Power-on reset Reset Normal operation power-off Undetermined 0V 0V -2.7V Vrazht Vreg = V SS - VDD -2.7V Vrazlt 5/8 AVS12 TYPICAL APPLICATION 110 V or 220V NTC NTC 1N 4007 2 x 9.1K 1W R1 1M 1% option VDD VSS VM 8 7 5 AVS1ACP08 3 91k 1 % 100pF 5 % AVS12 2 1 VG 390 AVS12CB A2 G A1 R2 18K 1% 4V DD VSS 33 µF 16V ORDERING INFORMATION AVS12 CONTROLLER TRIAC AVS 1A C P08 AUTOMATIC VOLTAGE SWITCH AVS 12 C B AUTOMATIC VOLTAGE SWITCH PACKAGE B: UNINSULATED TO220 PACKAGE : DIP 8 IDENTIFICATION IDENTIFICATION OPERATING TEMPERATURE : C = 0/70 °C OPERATING TEMPERATURE : C = 0/70 °C 6/8 AVS12 PACKAGE MECHANICAL DATA 8 PINS - PLASTIC DIP REF. Min. a1 B B1 b b1 D E e e4 F I L Z 3.3 0.44 1.60 8.8 2.54 7.52 7.1 4.8 0.130 0.017 0.063 0.38 0.7 1.39 0.91 0.5 0.50 9.8 0.346 0.100 0.300 0.280 0.189 0.015 1.65 1.04 Typ. CONTROLLER DIMENSIONS Millimetres Max. Min. 0.027 0.054 0.036 0.020 0.020 0.386 0.065 0.041 Inches Typ. Max. TO220AB (Plastic) REF. H TRIAC DIMENSIONS Millimeters A G J Inches Min. 0.401 0.560 0.500 0.230 0.100 0.176 0.139 0.045 0.013 0.082 0.18 0.031 0.025 Max. 0.401 0.625 0.579 0.270 0.178 0.119 0.190 0.158 0.055 0.026 0.107 0.22 0.048 0.038 Min. A B C D 10.20 14.23 12.70 5.85 2.54 4.48 3.55 1.15 0.35 2.10 4.58 0.80 0.64 Max. 10.40 15.87 14.70 6.85 4.50 3.00 4.82 4.00 1.39 0.65 2.70 5.58 1.20 0.96 I D B F G H I L F O J L M N O P P C M = N= C ooling method : C Marking : Type number Weight : 2.3 g Recommended torque value : 0.8 m.N. Maximum torque value : 1 m.N. 7/8 AVS12 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability 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 SGS-THOM SON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THO MSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. © 1995 SGS-THOMSON Microelectronics - Printed in Italy - All rights reserved. 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