AVS20
AVS200
AUTOMATIC VOLTAGE SWITCH (SMPS < 300W)
TRIAC
HIGH EFFICIENCY AND SAFETY SWITCHING
UNINSULATED PACKAGE :
AVS10CB/AVS100CB
INSULATED PACKAGE (2500V
RMS
) :
AVS10CBI
V
DRM
=
鹵600V
(AVS10CB),
鹵800V
(AVS100CB)
I
T(RMS)
: 8A
.
.
.
.
.
.
.
.
.
.
.
.
CONTROLLER
50/60Hz FULL COMPATIBILITY
INTEGRATED VOLTAGE REGULATOR
TRIAC TRIGGERING BY PULSE TRAIN
HIGH IMMUNITY TO AC DISTURBANCES
(SPIKES, MISSING CYCLE)
HIGH RELIABILITY ON LINE VOLTAGE DE-
TECTION (PARASITIC FILTER ON SIGNAL IN-
PUT)
FAST DIGITAL START-UP TIME
(< 2 LINE CYCLES)
LOW POWER CONSUMPTION
P
DIP8
(Plastic Package)
ORDER CODE :
AVS2ACP08
DESCRIPTION
The AVS20 (AVS200) kit is an automatic mains
selector (120/230V AC) to be used in SMPS with
input power < 300 W. It is composed of 2 devices :
鈥?/div>
The
Controller
is optimized for low consumption
and high security triggering of the triac. When
connected to V
SS
, the
mode
input activates an
additional
option
鈥渢he
latched
option鈥? If the
main power drops from 230V to 120V, the triac
control remains locked to the 230V mode and
avoids any high voltage spike when the voltage
is restored to 230V.
When connected to V
DD
, the
mode
input desac-
tivates this
option
鈥渢his is the
follower
option鈥?
鈥?/div>
The TRIAC is specially designed for this applica-
tion. An optimization between sensitivity and
dynamic parameters of the triac gate highly re-
duces the losses of supply resistor and allows
excellent immunity against line disturbances.
B
TO220AB
(Plastic Package)
ORDER CODES :
AVS10CB-AVS10CBI-AVS100CB
PIN CONNECTIONS
DIP8
V
SS
Osc/ In
Osc/Out
V
DD
1
2
3
4
8
7
6
5
V
M
Mode
NC
V
G
AVS20-01.EPS
July 1992
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