TSI220B1電路保護(hù)的TVS-晶閘管規(guī)格書(shū)PDF中文資料

TSI220B1屬于電路保護(hù)的TVS-晶閘管。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的TSI220B1TVS - 晶閘管基于晶閘管的瞬態(tài)電壓抑制 (TVS) 器件可用于提供過(guò)壓保護(hù)，在正常工作條件下近似于開(kāi)路。在這些器件兩端施加超過(guò)某個(gè)特定值的電壓（稱為擊穿電壓），可使它們進(jìn)入近似于短路的導(dǎo)通狀態(tài)。?這種狀態(tài)一直持續(xù)至流過(guò)器件的電流因電路中的一些外部影響而降低到稱為“保持電流”的最小值以下。

DESCRIPTION

The TSIxxB1 provides the diode bridge and the crowbar protection function that can be found in most of telecom terminal equipment.

Integrated monolithically within a SO8 package, this ASD? device allows space saving on the board and greater reliability.

FEATURES

■ STAND-OFF VOLTAGE FROM 62V TO 265V

■ PEAK PULSE CURRENT : 30 A (10/1000 μs)

■ MAXIMUM DC CURRENT : IF = 0.2 A

■ HOLDING CURRENT :150 mA

BENEFITS

■ Diode bridge for polarity guard and crowbar protection within one device.

■ Single chip for greater reliability

■ Reduces component count versus discrete solution

■ Saves space on the board

MAIN APPLICATION

Telecom equipment requiring combined protection against transient overvoltages and rectification by diode bridge :

■ Telephone set

■ Base station for cordless set

■ Fax machine

■ Modem

■ Caller Id equipment

■ Set top box