ISO35T Small EVM


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The smaller EVM version shows the customer the spaced required for their design. This circuit provides an isolated, 20 Mbps. 3.3V to 3.3V RS-485 interface using the ISO35T, isolated RS-485 transceiver and the TPS76333 high accuracy linear regulator. This circuit achieves signal and power isolation and at the same time decreases space and power consumption.

  • 4000V peak Isolation
  • Bus pin ESD protection
    - 16KV HBM between bus pins and GND2
    - 6KV HBM between bus pins and GND1
  • 1/8 unit load - up to 256 nodes on a bus
  • Designed to RS-485 and RS-422 applications
  • Signaling rates up to 1 Mbps
  • Thermal shutdown protection
  • Low bus capacitance 16 pF (typ)
  • 50 KV/us typical transient immunity
  • UL 1577, IEC 60747-5-2 (VDE 0884, Rev. 2) approval pending
  • Fail-safe receiver for bus open, short or idle
  • Logic inputs are 5V tolerant
  • Signal isolators with integrated power
    ISO35T 1-Mbps full-duplex 2.5-kVrms isolated RS-485 & RS-422 transceiver with integrated transformer driver
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    Evaluation board

    ISO35TEVM-434 — ISO35T Small EVM

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    Technical documentation

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    Type Title Date
    Certificate ISO35TEVM-434 EU Declaration of Conformity (DoC) 02 Jan 2019
    EVM User's guide ISO1176T/35T/3086T Evaluation Module User's Guide (Rev. A) 13 Jul 2010

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