Vishay Semiconductors VOM452T/VOM453T高速光耦合器

Vishay Semiconductors /高速光耦合器包含一个GaAlAs红外发射二极管,可与集成光检器和高速晶体管光耦合。光检器是与晶体管隔离的结点,用于减少密勒电容效应。Vishay Semiconductors VOM452T/VOM453T高速光耦合器具有开路集电极输出和非常高的共模瞬态抗扰特性。开路集电极输出功能可使电路设计人员在连接不同的逻辑系统时(如TTL、CMOS 等)调整负载状态。VOM452T/VOM453T高速光耦合器在检测器芯片上配有一个法拉第屏蔽,使之能够屏蔽和最小化高输入,以输出共模瞬态电压。这些产品也没有基极连接,进一步减少进入封装件的潜在电噪声。这些光耦合器按照行业标准SOP-5进行封装,适用于表面贴装。

特性

  • 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

规范

  • 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

应用

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