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AVS12
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
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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 = 25C (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 = 25C ) I2t value TC = 70C 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/s
Value 600 12 105 100 50 20
Unit V A A
A2s
dI/dt
Critical rate of rise of on-state current (1)
A/s 100 50 - 40 + 150 0 + 110 V/s C
Gate open
Tj = 110C
(1) Gate supply : IG =100mA (2) Tj = 110C
* For either polarity of electrode A2 voltage with reference to electrode A1
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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 = 3.3k Pulse duration> 20s ITM = 17A tp = 10ms VDRM rated Gate open Tj = 110C Tj = 25C Tj = 25C Tj = 110C 0.2 1.75 10 500 Value Max. V V A Unit
* For either polarity of electrode A2 voltage with reference to electrode A1.
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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).
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AVS12
DC GENERAL ELECTRICAL CHARACTERISTICS (continued) CONTROLLER AVS1ACP08 Toper = 25C (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 = 91k) (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 A
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
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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 33F 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
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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=
Cooling method : C Marking : Type number Weight : 2.3 g Recommended torque value : 0.8 m.N. Maximum torque value : 1 m.N.
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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.
(c) 1995 SGS-THOMSON Microelectronics - Printed in Italy - All rights reserved. SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
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