DESCRIPTION

The AVS12 kit is an automatic mains selector (110/220V AC) to be used in SMPS < 500 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. If the main power drops from 220V to 110V, the triac control remains locked to the 220V mode and avoids any high voltage spike when the voltage is restored to 220V. When connected to VDD, the mode input desactivates this 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 disturbances.

CONTROLLER

■ 50/60Hz FULL COMPATIBILITY

■ INTEGRATED VOLTAGE REGULATOR

■ TRIGGERING PULSE TRAIN OF THE TRIAC

■ PARASITIC FILTER

■ LOW POWER CONSUMPTION

TRIAC

■ HIGH EFFICIENCY AND SAFETY SWITCHING

■ UNINSULATED PACKAGE : AVS12CB

■ VDRM = ± 600 V

■ IT(RMS) : 12A

AVS12屬于分立半導(dǎo)體產(chǎn)品 > 晶閘管 - TRIAC。意法半導(dǎo)體（ST）集團(tuán)制造生產(chǎn)的AVS12晶閘管 - TRIAC晶閘管可沿一個方向或在半個 AC 周期內(nèi)傳導(dǎo) AC（交流電）。當(dāng) TRIAC（三極管 AC）的門極被觸發(fā)時，即會沿任一方向傳導(dǎo)電流。其他名稱包括雙向三極晶閘管或雙側(cè)三極晶閘管。TRIAC 分為無緩沖器、Alternistor、內(nèi)部觸發(fā)、邏輯門和標(biāo)準(zhǔn)型，安裝方式包括底座、表面或通孔安裝。這些器件可根據(jù)斷態(tài)電壓、通態(tài)電流、保持電流和門極觸發(fā)電壓進(jìn)行選擇。