ACST4屬于分立半導(dǎo)體產(chǎn)品的晶閘管-TRIAC。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的ACST4晶閘管 - TRIAC晶閘管可沿一個(gè)方向或在半個(gè) 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(shí)，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。

描述 Description

The ACST4 belongs to the AC power switch family built around the ASD? technology. This high performance device is adapted to home appliances or inductrial systems and drives loads up to 4 A.

特性 Features

■ Blocking voltage: VDRM /VRRM = ±700 V

■ Avalanche controlled: VCL typ = 1100 V

■ Nominal conducting current : IT(RMS) = 4 A

■ High surge current capability: 30 A for 20 ms full wave

■ Gate triggering current: IGT < 10 mA or 25 mA

■ Switch integrated driver

■ High noise immunity: static dV/dt > 500 V/μs

Benefits

■ Enables equipment to meet IEC 61000-4-5

■ High off-state reliability with planar technology

■ No external overvoltage protection needed

■ Reduces the power component factor

■ Interfaces directly with the microcontroller

■ Direct interface with the microcontroller for the ACST4-7S (IGT

Main applications

■ AC static switching in appliance control systems

■ Drive of low power high inductive or resistive loads like

– spray pump in dishwashers

– an in air-conditioners