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AVS20

STMicroelectronics
Part Number AVS20
Manufacturer STMicroelectronics
Description AUTOMATIC VOLTAGE SWITCH SMPS < 300W
Published Apr 1, 2005
Detailed Description AVS20 AVS200 AUTOMATIC VOLTAGE SWITCH (SMPS < 300W) TRIAC HIGH EFFICIENCY AND SAFETY SWITCHING UNINSULATED PACKAGE : AV...
Datasheet PDF File AVS20 PDF File

AVS20
AVS20

Overview
AVS20 AVS200 AUTOMATIC VOLTAGE SWITCH (SMPS < 300W) TRIAC HIGH EFFICIENCY AND SAFETY SWITCHING UNINSULATED PACKAGE : AVS10CB/AVS100CB INSULATED PACKAGE (2500VRMS) : AVS10CBI VDRM = ±600V (AVS10CB), ±800V (AVS100CB) IT(RMS) : 8A .
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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 DETECTION (PARASITIC FILTER ON SIGNAL INPUT) 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 : • 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 VDD, the mode input desactivates this option “this is the follower 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 line disturbances.
B TO220AB (Plastic Package) ORDER CODES : AVS10CB-AVS10CBI-AVS100CB PIN CONNECTIONS DIP8 VSS Osc/ In Osc/Out V DD 1 2 3 4 8 7 6 5 VM Mode NC VG AVS20-01.
EPS July 1992 1/8 AVS20 - AVS200 BLOCK DIAGRAM MODE 7 V SS 1 R SUPPLY RESET RST CK LATCHED MODE CONTROL V DD 4 VM 8 PEAK LINE VOLTAGE DETECTOR PARASITIC FILTER A2 MAINS R MODE CK CONTROLLER 2 4.
25 AVS10CB AVS10CBI or VG 0.
05 PARASITIC FILTER 5 G R 3 1 AVS100CB 0.
25 PARASITIC FILTER CK TRIAC TRIGGERING WINDOW A1 4 V DD CROSSING DETECTOR OSC/IN 2 CLOCK 10 OSC/OUT 3 AVS2ACP08 ...


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