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Partno	Mfg	Dc	Qty	Available	Descript
AVS12CB	ST	N/a	26	avai	AUTOMATIC VOLTAGE SWITCH (SMPS < 500W)
AVS12CB. |AVS12CB	ST	N/a	50	avai	AUTOMATIC VOLTAGE SWITCH (SMPS < 500W)

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AVS12CB-AVS12CB.
AUTOMATIC VOLTAGE SWITCH (SMPS < 500W)
AVS12
AUTOMATIC VOLTAGE SWITCH (SMPS < 500W) HIGH EFFICIENCY AND SAFETY SWITCHING UNINSULATED PACKAGE: AVS12CB VDRM=± 600V IT(RMS): 12A
TRIAC
The AVS12 kitis an automatic mains selector
(110/220V AC)tobe usedin SMPS< 500 W.Itis
composedof2 devices: The Controlleris optimized for lowconsumption and high security triggeringof the
triac. When connectedto VSS, the mode inputactivatesan additional option.If the main
power drops from 220Vto 110V, the triaccontrol remains lockedto the 220V mode and
avoids any high voltage spike when the voltage restoredto 220V.When connectedto VDD, the mode input
desactivates this option. The TRIACis specially designedfor this
application.An optimization between sensitivityand dynamic parametersof the triac gate highly
reduces the lossesof supply resistor and allowsexcellent immunity against disturbances.
DESCRIPTION
PIN CONNECTION 50/60Hz FULL COMPATIBILITY INTEGRATED VOLTAGE REGULATOR TRIGGERING PULSE TRAIN OF THE TRIAC PARASITIC FILTER LOW POWER CONSUMPTION
CONTROLLER
AVS12
ABSOLUTE MAXIMUM RATINGS
CONTROLLER AVS1ACP08
BLOCK DIAGRAM
(1) Gate supply:IG= 100mA– di/dt= 1A/μs *For either polarityof electrodeA2 voltage withreferenceto electrodeA1
(2)Tj= 110°C
TRIAC AVS12CB Tj = +25°C (unless otherwise specified)
AVS12
THERMAL RESISTANCE
TRIAC AVS12CBFor either polarityof electrodeA2 voltage with referenceto electrodeA1 GENERAL ELECTRICAL CHARACTERISTICS
TRIAC AVS12CB
Fig.1: Maximum RMS power dissipation versus
RMS on-state current (F= 60Hz). (Curves are cut
offby (dI/dt)c limitation)
Fig. 2: Correlation between maximum mean
power dissipation and maximum allowable tem-
perature (Tamb and Tcase) for different thermal
resistances heatsink+ contact.
AVS12
Fig.3: Non repetitive surge peak on-state cur-
rent fora sinusoidal pulse with width: t≤10ms,
and corresponding valueofI2t.
Fig.4: On-state characteristics (maximum values).
NOTE:
(1): This value givesa typical noise immunityon thezero-crossing detectionof 110mVx 1018/18= 6.20Vonthe mainsupply
(2): See following diagram
(3): Voltage referredtoVSS
(4): Voltage referredto VDD GENERAL ELECTRICAL CHARACTERISTICS (continued)
CONTROLLER AVS1ACP08 Toper= 25°C (unless otherwise specified)
AVS12
POWER-ON AND POWER-OFF RESET BEHAVIOUR
TYPICAL APPLICATION
AVS12
PACKAGE MECHANICAL DATA
DIP-8 Plastic (controller)
ORDERING INFORMATION

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