• RE: ISO3086: RECOMMEND DEVICE

  

  Anand Reghunathan

  Hi David, Currently we do not have a single part capable of providing Isolated power + RS-485 interface. However please do check out our combination solution of ISOW7841+SN65HVD147x. http://www.ti.com/tool/TIDA-00892 . This reference design will have…

  • over 8 years ago
  • Isolation
  • Isolation forum
Answered

• RE: ISOW7821: Check the isolator in sequence

  

  Barry lu

  Resolved

  Hi Koteshwar, Thanks for your remind. I've modified schematic from your suggestion. The pin UART2_DE from MCU(WSL309S) is connected to OUTB, and INB is connected to RE/DE. But the RE/DE of transceiver is input pin. The OUTB should be connected to RE…

  • over 6 years ago
  • Isolation
  • Isolation forum
Answered

• RE: ISOW7841: isolation Power supply current

  

  Anand Reghunathan

  Resolved

  Hi, Yes, your calculations are correct. ISOW7841 can provide 74mA of output current and SN65HVD72 would require 62mA at 0.25MHz. This combination solution should not face any problems. Iiso(out) shows the output current available at the VISO pin…

  • over 8 years ago
  • Isolation
  • Isolation forum

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