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http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fina350″>View Datasheet

Texas Instruments ISOW1044 Isolated CAN FD Transceivers

Texas Instruments ISOW1044 Isolated CAN FD Transceivers are galvanically-isolated controller area network (CAN) transceivers with a built-in isolated DC-DC converter. The isolated DC-DC converters eliminate the need for a separate isolated power supply in space-constrained isolated designs. The low-emissions, isolated DC-DC meets CISPR 32 radiated emissions Class B standard with two ferrite beads on a simple two-layer PCB. The additional 20mA output current can power other circuits on the board. An integrated 10Mbps GPIO channel is available in the Texas Instruments ISOW1044 and can help remove an additional digital isolator or optocoupler for diagnostics, LED indication, or supply monitoring.

Features

  • Meets the requirements of ISO 11898-2:2016 physical layer standards
    • Support of Classical CAN: 1Mbps
    • Optimized for CAN FD: 2 and 5Mbps
  • Integrated DC-DC converter with low-emissions, low-noise
    • Meets CISPR 32 and EN 55032 Class B with greater than 6dB margin on a two-layer PCB
    • Low-frequency power converter at 25MHz enabling low noise performance
  • Additional 10Mbps GPIO channel
  • High-efficiency output power
    • 47% typical efficiency
    • ±5% isolated output voltage accuracy
    • 20mA additional output current
  • Independent power supply for CAN and DC-DC
    • 1.71V to 5.5V logic supply (VIO)
    • 4.5V to 5.5V power converter supply (VDD)
  • Fault-protected CAN FD transceiver
    • ±58V DC bus fault protection voltage
    • ±12V receiver common-mode input voltage
    • Remote wakeup via BUS wakeup pattern
  • 167ns typical loop delay
  • Reinforced and Basic isolation options
  • 100kV/µs (typical) high CMTI
  • High ESD bus protection w.r.t GND2
    • ±12kV HBM ESD
    • ±8kV IEC 61000-4-2 contact discharge
  • -40°C to 125°C operating temperature range
  • Current limit and thermal shutdown
  • 20-pin wide SOIC package
  • Safety-Related Certifications planned
    • VDE Reinforced and Basic insulation per DIN VDE V 0884-11:2017-01
    • UL 1577 component recognition program
    • IEC 62368-1, IEC 61010-1, IEC 60601-1 and GB 4943.1-2011 certifications

Applications

  • Factory automation
  • Building automation
  • Industrial transport
  • Solar inverters, protection relay
  • Motor drives

Functional Block Diagram

Block Diagram - Texas Instruments ISOW1044 Isolated CAN FD Transceivers

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Texas Instruments ISOW1044 Isolated CAN FD Transceivers