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AVS12
®
January 2002 - Ed: 3C
AUTOMATIC VOLTAGE SWITCH (SMPS < 500W)
AVS1ACP08
DIP-8
■HIGHEFFICIENCYANDSAFETYSWITCHING
■UNINSULATED PACKAGE : AVS12CB
■VDRM = ± 600 V
■IT(RMS) : 12A
TRIAC
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
is restored 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.
DESCRIPTION
1
2
3
4
V
M
Mode
V
G
8
7
6
5V
DD
V
SS
Osc / In
Osc / Out N.C.
PIN CONNECTION
■50/60Hz FULL COMPATIBILITY
■INTEGRATED VOLTAGE REGULATOR
■TRIGGERING PULSE TRAIN OF THE TRIAC
■PARASITIC FILTER
■LOW POWER CONSUMPTION
CONTROLLER
A2
A2
A1 G
AVS12CB
TO-220AB
AVS12
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Symbol Parameter Value Unit
Min. Max.
VSS Supply voltage -12 0.5 V
VI/V
OI / O voltage VSS -0.5 0.5 V
II/I
OI / O current -40 +40 mA
Tstg Storage Temperature -60 +150 °C
Toper Operating Temperature code ''C'' 0 +70 °C
ABSOLUTE MAXIMUM RATINGS
CONTROLLER AVS1ACP08
Q
Q
CP
S
CP
MODE
A2
A1
OSC/IN
OSC/OUT
Zero Crossing
Detector
Oscillator
Supply
PeakVoltage
Detector
Reset
Parasitic
Filter
Mains
mode
Controller
Triggering
Time
Controller
AVS1ACP08
AVS12CB
BLOCK DIAGRAM
Symbol Parameter Value Unit
VDRM Repetitive peak off-state voltage (2) ± 600 V
IT(RMS) RMS on-state current (360° conduction angle) TC= 70°C 12 A
ITSM Non repetitive surge peak on-state current ( Tjinitial = 25°C ) t = 8.3ms
t = 10ms 105
100 A
I2tI
2
t value t = 10ms 50 A2s
dI / dt Critical rate of rise of on-state current (1) Repetitive
F = 50Hz 20 A/µs
Non
Repetitive 100
dV/dt * Linear slope up to 0.67 VDRM Gate open Tj = 110°C 50 V/µs
Tstg
TjStorage Temperature
Junction Temperature Range - 40 + 150
0 + 125 °C
(1) Gate supply : IG= 100mA – di/dt = 1A/µs * For either polarity of electrode A2 voltage with reference to electrode A1
(2) Tj= 110°C
TRIAC AVS12CB Tj= +25°C (unless otherwise specified)
AVS12
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Symbol Parameter Value Unit
Rth (j-a) Junction to ambient 60 °C/W
Rth (j-c) DC Junction to case for DC 3 °C/W
Rth (j-c) AC Junction to case for 360° conduction angle (F = 50Hz) 2.3 °C/W
THERMAL RESISTANCE
TRIAC AVS12CB
Symbol Parameter Value Unit
Min. Max.
VGD VD=V
DRM RL = 3.3kΩPulse duration > 20µs Tj= 110°C 0.2 V
VTM *I
TM = 17A tp= 10ms Tj= 25°C 1.75 V
IDRM *V
DRM rated Gate open Tj= 25°C 10 µA
Tj= 110°C 500
* For either polarity of electrode A2voltage with reference to electrode A1
DC GENERAL ELECTRICAL CHARACTERISTICS
TRIAC AVS12CB
Fig. 1: Maximum RMS power dissipation versus
RMS on-state current (F = 60Hz). (Curves are cut
off by (dI/dt)c limitation)
Fig. 2: Correlation between maximum mean
power dissipation and maximum allowable tem-
perature (Tamb and Tcase) for different thermal
resistances heatsink + contact.
AVS12
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Fig. 3: Non repetitive surge peak on-state cur-
rent for a sinusoidal pulse with width: t≤10ms,
and corresponding value of I2t.
Fig. 4: On-state characteristics (maximum values).
Symbol Parameter Value Unit
Min. Typ. Max.
VSS (pin 1) (Vreg) Shunt regulator -10 -9 -8 V
ISS (pin 1) (Vreg)
(@ VSS = 9V) Supply current 0.4 30 mA
ISS (pin 1)
(@ triac gate non
connected)
Quiescent current 0.7 mA
F (pin 3)
(@ R = 91kΩ)
(C = 100pF)
Oscillator frequency 42 44 46 KHz
VM(pin 8) Vth (3) Peak voltage of detection high-threshold 4.08 4.25 4.42 V
VM(pin 8) Vh (3) Peak voltage of detection hysteresis 0.370 0.4 0.420 V
(1) VM(pin 8) Vth (3) Zero-crossing detection high-threshold 95 110 125 mV
VM(pin 8) Vh (3) Zero-crossing detection hysteresis 27 50 80 mV
(2) Vrazht (4) Power-on-reset activation threshold Vreg x 0.89 V
(2) Vrazlt (4) Power-down-reset activation threshold 3 6.5 V
Mode (pin 7) VIL (4)
VIH (4) 0.7 Vreg 0.3 Vreg V
NOTE:
(1) : This value gives a typical noise immunity on the zero-crossing detectionof 110mV x 1018/18 = 6.20V on the main supply
(2) : See following diagram
(3) : Voltage referred to VSS
(4) : Voltage referred to VDD
DC GENERAL ELECTRICAL CHARACTERISTICS (continued)
CONTROLLER AVS1ACP08 Toper = 25°C (unless otherwise specified)
AVS12
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Undetermined Power-on reset Normal operation Power-off reset Undetermined
0V
-2.7V
Vrazlt
Vreg = VSS - VDD
Vrazht
-2.7V
0V
POWER-ON AND POWER-OFF RESET BEHAVIOUR
option
75
4
NTC
NTC
110 V
or
220V
G
1 N
4007
R1
1MΩ
1 %
8
321
A
1
A
2
V
V
DD
SS
V
DD
V
G
V
M
91k 1 %Ω
100pF 5 %
V
SS
2
x
9.1KΩ
1W
R2
18KΩ
1 %
390Ω
AVS12CB
AVS1ACP08
33µF
16V
AVS12
TYPICAL APPLICATION
AVS12
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PACKAGE MECHANICAL DATA
DIP-8 Plastic (controller)
8
1
5
4
E
D
F
b1
b
e3
e
Z
BB1
I
L
a1
REF.
DIMENSIONS
Millimetres Inches
Min. Typ. Max. Min. Typ. Max.
a1 0.70 0.027
B 1.39 1.65 0.055 0.065
B1 0.91 1.04 0.036 0.041
b 0.5 0.020
b1 0.38 0.50 0.015 0.020
D 9.80 0.385
E 8.8 0.346
e 2.54 0.100
e3 7.62 0.300
F 7.1 0.280
I 4.8 0.189
L 3.3 0.130
Z 0.44 1.60 0.017 0.063
AVS12
AVS 1A C P08 AVS 12 C B
AUTOMATIC
VOLTAGE
SWITCH
IDENTIFICATION
OPERATING
TEMPERATURE
C = 0/70°C
PACKAGE:
DIP-8 AUTOMATIC
VOLTAGE
SWITCH
IDENTIFICATION
OPERATING
TEMPERATURE
C = 0/70°C
PACKAGE B:
TO-220AB
CONTROLLER TRIAC
ORDERING INFORMATION
AVS12
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Informationfurnishedisbelievedtobeaccurateandreliable.However,STMicroelectronicsassumesnoresponsibilityfortheconsequencesof
useofsuch information nor for any infringement of patents or other rightsofthirdpartieswhichmayresultfromitsuse. 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 ap-
proval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics
© 2002 STMicroelectronics - Printed in Italy - All rights reserved.
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PACKAGE MECHANICAL DATA
TO-220AB (Plastic) (Triac)
M
B
l4
C
b2
a2
l2
c2
l3
b1
a1
A
F
L
I
ec1
REF. DIMENSIONS
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 15.20 15.90 0.598 0.625
a1 3.75 0.147
a2 13.00 14.00 0.511 0.551
B 10.00 10.40 0.393 0.409
b1 0.61 0.88 0.024 0.034
b2 1.23 1.32 0.048 0.051
C 4.40 4.60 0.173 0.181
c1 0.49 0.70 0.019 0.027
c2 2.40 2.72 0.094 0.107
e 2.40 2.70 0.094 0.106
F 6.20 6.60 0.244 0.259
I 3.75 3.85 0.147 0.151
I4 15.80 16.40 16.80 0.622 0.646 0.661
L 2.65 2.95 0.104 0.116
l2 1.14 1.70 0.044 0.066
l3 1.14 1.70 0.044 0.066
M 2.60 0.102
Part Number Marking Weight Base Qty Packing mode
AVS12CB AVS12CB 2.3 g 1000 Tube
AVS1ACP08 AVS1ACP08 0.6 g 2000 Tube
OTHER INFORMATION
■Cooling method: C
■Recommended torque value: 0.8 m.N
■Maximum torque value: 1 m.N
