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The ISO1050 is a galvanically isolated CAN transceiver that meets the specifications of the ISO11898-2 standard. The device has the logic input and output buffers separated by a silicon oxide (SiO 2) insulation barrier that provides galvanic isolation of up to 5000 V RMS for ISO1050DW and 2500 V RMS for ISO1050DUB. Used in conjunction with isolated power supplies, the device prevents noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry.

As a CAN transceiver, the device provides differential transmit capability to the bus and differential receive capability to a CAN controller at signaling rates up to 1 megabit per second (Mbps). The device is designed for operation in especially harsh environments, and it features cross-wire, overvoltage and loss of ground protection from –27 V to 40 V and overtemperature shutdown, as well as –12V to 12V common-mode range.

The ISO1050 is characterized for operation over the ambient temperature range of –55°C to 105°C.

• Meets the requirements of ISO11898-2
• 5000-V RMS isolation (ISO1050DW)
• 2500-V RMS isolation (ISO1050DUB)
• Fail-safe outputs
• Low loop delay: 150 ns (typical), 210 ns (maximum)
• 50-kV/µs typical transient immunity
• Bus-fault protection of –27 V to 40 V
• Driver (TXD) dominant time-out function
• I/O voltage range supports 3.3 V and 5 V microprocessors
• Safety-related certifications
  • VDE approval per DIN EN IEC 60747-17 (VDE 0884-17)
  • UL 1577 approved

  • CSA approved for IEC 61010-1, IEC 60601-1

  • TUV Reinforced Insulation Approval for EN/UL/CSA 62368-1 (ISO1050DW-Only)
  • CQC reinforced insulation per GB4943.1 (ISO1050DW-only)
  • Typical 25-year life at rated working voltage (see application report SLLA197 and Life Expectancy vs Working Voltage)