Vishay Semiconductors VOM452T/VOM453T高速光電藕合器

Vishay Semiconductors/高速光電藕合器都包含一個GaAlAs紅外發光二極管,與集成光電探測器及高速電晶體光電耦合。光電探測器與電晶體形成結隔離,以減小米勒電容效應。Vishay SemiconductorsVOM452T/VOM453T高速光電藕合器擁有集電極開路輸出與極高的共模瞬態抑制。集電極開路輸出功能允許電路設計師在與不同邏輯系統(如TTL、CMOS等)連接時調整負荷狀態。VOM452T/VOM453T高速光電藕合器在探測器芯片上擁有法拉第屏蔽,能夠使其拒絕或減小高輸入對輸出共模瞬態電壓。此外,該設備沒有基極連接,進一步減小了可能進入封裝的電雜訊。這些光電藕合器的封裝是行業標準SOP-5封裝,並且適合表面貼裝。

特點

  • Surface mountable
  • Industry standard SOP-5 footprint
  • Compatible with infrared vapor phase reflow and wave soldering processes
  • TTL compatible
  • Open collector output
  • Compliant to RoHS Directive 2002/95/EC and in accordance to WEEE 2002/96/EC

規格

  • Isolation test voltage: 3750VRMS
  • High common mode transient immunity: 15,000V/μs at VCM = 1500V guaranteed (VOM453T)
  • High speed: 1MBd
  • Input forward voltage: 1.4V
  • Input reverse current: 0.5μA
  • Operating temperature: -55°C to +125°C

應用

  • Fieldbus communication and control
  • Logic ground isolation
  • Analog signal ground isolation
  • Replace pulse transformers