SGS Thomson Microelectronics AVS08-CB1, AVS08-CB Datasheet
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
1/7
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
2/7
* 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
3/7
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