Maxim Integrated MAX14934-MAX14936 四通道数字隔离器

MaximMAX14934-MAX14936 四通道数字隔离器是双通道、5kV 数字隔离器，可以在高达 +125°C 的环境温度下、在电路和不同电源域间传输数字信号。MAX14934-MAX14936 系列提供了所有三种可能的通道配置，以适应任何四通道设计，包括 SPI、RS-232、RS-485、和大型数字 IO 模块。这些器件有各种数据速率可选，从 DC 到高达 1Mbps、25Mbps 或 150Mbps。每一器件又分为默认高或默认低配置。默认的是当输入未供电时，输出进入的状态。独立的 1.71V 至 5.5V 电源分别用于隔离器两侧的供电，使器件非常适合用作电平转换器。

特性

  • Robust Galvanic Isolation of Digital Signals
    • Withstands 5kVRMS for 60s (VISO)
    • Continuously Withstands 848VRMS (VIOWM)
    • 1200VP Repetitive Peak Voltage (VIORM)
    • Withstands ±10kV Surge per IEC 61000-4-5
  • Interfaces Directly with Most Micros and FPGAs
    • Accepts 1.71V to 5.5V Supplies
  • Many Options Support Broad Applications
    • 3 Data Rates (1Mbps, 25Mbps, 150Mbps)
    • 3 Channel Direction Configuration
    • 2 Defaults (High or Low)
  • Low Power Consumption at High Data Rates
    • At 1.8V
      • 2.5mA per Channel Typical at 1Mbps
      • 5.25mA per Channel Typical at 100Mbps
    • At 3.3V
      • 2.6mA per Channel Typical at 1Mbps
      • 7.1mA per Channel Typical at 100Mbps
  • Safety Regulatory Approvals Pending
  • UL According to UL1577
  • cUL According to CSA Bulletin 5A
  • VDE 0884-10

应用

  • Fieldbus Communications for Industrial Automation
  • Isolated SPI, RS-232, RS-485/RS-422
  • Battery Management
  • General Multichannel Isolation Applications
  • Medical Systems
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