AVS20 Datasheet, PDF (1/8 Pages) STMicroelectronics – AUTOMATIC VOLTAGE SWITCH SMPS < 300W

AVS20
AVS200
AUTOMATIC VOLTAGE SWITCH (SMPS < 300W)
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}
TRIAC
._{HIGH EFFICIENCY AND SAFETY SWITCHING}
._{UNINSULATED PACKAGE :}
AVS10CB/AVS100CB
.INSULATED PACKAGE (2500VRMS) :
AVS10CBI
._{VDRM = ±600V (AVS10CB), ±800V (AVS100CB)}
._{IT(RMS) : 8A}
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 :
• 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 “the latched option”. 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 “this is the follower option”.
• 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
VSS 1
Osc/ In 2
Osc/Out 3
V_DD 4
8 V_M
7 Mode
6 NC
5 V_G
AVS20-01.EPS
July 1992
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