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AUTOMATIC VOLTAGE SWITCH (SMPS < 200W)
CONTROLLER
50/60HzFULLCOMPATIBILITY
INTEGRATEDVOLTAGEREGULATOR
TRIGGERINGPULSE TRAIN OF THE TRIAC
PARASITIC FILTER
LOW POWERCONSUMPTION
TRIAC
HIGH EFFICIENCYAND SAFETY SWITCHING
UNINSULATEDPACKAGE : AVS08CB
INSULATED PACKAGE 2500V(
RMS
):
AVS08CBI
V
DRM
= ± 500 V
I
T(RMS)
:5A
DESCRIPTION
The AVS08 kit is an automatic mains selector
(110/220VAC) to be used in SMPS < 200 W. It is
composedof 2 devices :
• The Controlleris optimizedfor low consumption
and high security triggering of the triac. When
connected to V
SS
, the mode input activates an
additional option. If the main power drops from
220V to 110V, the triac controlremains locked to
the 220Vmode andavoidsanyhigh voltagespike
when the voltage is restoredto 220V.
When connectedto V
DD
, the mode input desacti-
vates this option.
• The TRIAC is specially designed for this applica-
tion. An optimization between sensitivity and dynamic parametersof the triacgate highlyreduces
the losses of supplyresistor and allows excellent
immunityagainst disturbances.
P
DIP8
(Plastic)
B
TO220AB
(Plastic)
A1
A2
G
AVS08
March1995
PIN CONNECTION
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ABSOLUTE MAXIMUM RATINGS
CONTROLLER AVS1BCP08
(1) Gate supply : IG=100mA – di/dt =1A/µs
(2) Tj= 125°C
Symbol Parameter Value Unit
Min. Max.
V
SS
Supply voltage - 12 0.5 V
VI/V
O
I / O voltage V
SS
- 0.5 0.5 V
II/I
O
I / O current - 40 + 40 mA
T
stg
Storage Temperature - 60 + 150 °C
T
oper
Operating Temperaturecode ” C ” 0 + 70 °C
TRIACAVS08CB/ AVS08CBI Tj= +25°C (unless otherwisespecified)
Symbol Parameter Value Unit
V
DRM
Repetitive peak off-state voltage (2) ± 500 V
I
T(RMS)
RMS on-statecurrent
(360° conduction angle)
AVS08CB T
C
= 100°C
5A
AVS08CBI T
C
=95°C
I
TSM
Non repetitive surge peak on-state current
(T
j
initial= 25°C)
t = 8.3ms
t = 10ms
70
65
A
I2tI
2
t value t = 10ms 21 A2s
dI/dt Critical rate of rise of on-state current (1)
Repetitive
F = 50Hz
20
A/µs
Non
Repetitive
100
T
stg
T
j
Storage Temperature
Junction TemperatureRange
- 40 + 125
- 10 + 110
°C
Q
Q
Reset
CP
S
CP
OSC/IN
OSC/OUT
MODE
Parasitic
Filter
Peak Voltage
Dectector
A1
A2
Triggering
Time
Controller
Supply
1
4
8
2
3
Oscillator
Zero Crossing
Detector
53
4
2
1
V
V
G
G
DD
7
DD
V
V
V
M
SS
Mains
mode
Controller
MR
AVS1BCP08
AVS08CB
or
AVS08CBI
BLOCK DIAGRAM
AVS08
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Page 3
* For either polarity of electrode A2voltage withreference to electrode A1.
DC GENERAL ELECTRICAL CHARACTERISTICS
TRIACAVS08CB/ AVS08CBI
Symbol Parameter Value Unit
Min. Max.
VTM*ITM=7A tp= 10ms T
j
=25°C 1.65 V
I
DRM
*V
DRM
rated Gate open T
j
=25°C10µA
Fig. 1 :Maximum RMS power dissipation versus RMS on-state current
(F = 60Hz).
(Curves are cut off by (dI/dt)climitation)
THERMALRESISTANCES
TRIACAVS08CB/ AVS08CBI
Symbol Parameter Value Unit
Rth (j-a) Junction-to-ambient 60 °C/W
Rth (j-c) DC Junction-to-casefor DC
AVS08CB 5.4
°C/W
AVS08CBI 6.3
Rth (j-c) AC
Junction-to-case for 360° conduction angle
( F = 50Hz)
AVS08CB 4.0
°C/W
AVS08CBI 4.7
AVS08
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Page 4
Symbol Parameter Value Unit
Min Typ Max
VSS(pin1) (Vreg) Shunt regulator - 10 - 9 - 8 V
ISS(pin 1) (Vreg)
(@ VSS= 9V)
Supply current 0.4 25 mA
ISS(pin 1)
(@triac gate non
connected)
Quiescent current 1 mA
F (pin 3)
(@ R = 91kΩ)
(C = 100pF)
Oscillator frequency 42 44 46 KHz
VM(pin 8) Vth (3)
Peak voltageof detection
high-threshold
4.08 4.25 4.42 V
VM(pin 8) Vh (3) Peak voltageof 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 Vregx 0.89 V
(2) Vrazlt (4)
Power-down-reset activation
threshold
3 6.95 V
Mode (pin7)
V
IL
(4)
V
IH
(4) 0.7 Vreg
0.3 Vreg
V
VG(pin 5)
VOL(IVG= 25mA)
Leakage current (VG=VDD)
1
+50
V
µA
DC GENERAL ELECTRICALCHARACTERISTICS (continued)
CONTROLLER AVS1BCP08 T
oper
=25°C (unlessotherwise specified)
NOTES :
(1) : This value givesa 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 V
SS
(4) : Voltage referred to V
DD
0V 0V
-2.7V
-2.7V
Vrazht
Vrazlt
Vreg = V - V
SS DD
Normal operation
Power-on
reset
Undetermined Undetermined
Reset
power-off
POWER-ON AND POWER-OFF RESETBEHAVIOUR
AVS08
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Page 5
option
7
5
4
NTC
NTC
110 V
or
220V
G
1N
4007
R1
1M
1%
8
3
21
A
1
A
2
V
V
DD
SS
V
DD
V
G
V
M
91k 1 %
100pF 5 %
V
SS
2
x
9.1K
1W
R2
18K
1%
390
AVS08CB
or AVS08CBI
AVS08
AVS1BCP08
33µF
16V
TYPICAL APPLICATION
ORDERING INFORMATION
AVS08
CONTROLLER
AVS 1B C P08
AVS 08 C B I
TRIAC
OPERATING TEMPERATURE :
C = 0/70 °C
OPERATING TEMPERATURE:
C = 0/70 °C
IDENTIFICATION
PACKAGE :
DIP 8
AUTOMATIC
VOLTAGE
SWITCH
PACKAGE B:
UNINSULATED TO220
INSULATED Suffix
IDENTIFICATION
AUTOMATIC
VOLTAGE
SWITCH
AVS08
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PACKAGE MECHANICAL DATA
8 PINS- PLASTICDIP
TO220AB(Plastic)
CONTROLLER
Cooling method : C
Marking : Type number
Weight : 2.3g
Recommended torque value : 0.8 m.N.
Maximum torque value : 1 m.N.
TRIAC
I
==
A
G
D
B
C
F
P
N
O
M
L
J
H
REF. DIMENSIONS
Millimeters Inches
Min. Max. Min. Max.
A 10.20 10.50 0.401 0.413
B 14.23 15.87 0.560 0.625
C 12.70 14.70 0.500 0.579
D 5.85 6.85 0.230 0.270
F 4.50 0.178
G 2.54 3.00 0.100 0.119
H 4.48 4.82 0.176 0.190
I 3.55 4.00 0.140 0.158
J 1.15 1.39 0.045 0.055
L 0.35 0.65 0.013 0.026
M 2.10 2.70 0.082 0.107
N 4.58 5.58 0.18 0.22
O 0.80 1.20 0.031 0.048
P 0.64 0.96 0.025 0.038
REF. DIMENSIONS
Millimetres Inches
Min. Typ. Max. Min. Typ. Max.
a1 0.7 0.027
B 1.39 1.65 0.054 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 9.8 0.386
E 8.8 0.346
e 2.54 0.100
e4 7.52 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
AVS08
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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 otherwiseunder any patent or patentrights ofSGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products arenot authorized for use as critical components in life support devices orsystems withoutexpress
written approval of SGS-THOMSON Microelectronics.
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 - TheNetherlands -
Singapore - Spain - Sweden - Switzerland- Taiwan - Thailand - United Kingdom - U.S.A.
AVS08
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