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    Latest signal and power isolated CAN Transceivers unveiled, with integrated dc-to-dc converters

    The ADM3055E/ADM3057E are 5 kV rms and 3 kV rms isolated controller area network (CAN) physical layer transceivers with integrated isolated dc-to-dc converters. The ADM3055E/ ADM3057E meet flexible data rate (CAN FD) requirements for operation to 5 Mbps and higher and comply with the ISO 11898-2: 2016 standard.

    The ADM3055E/ADM3057E are capable of supporting data rates as high as 12 Mbps. The devices employ Analog Devices, Inc., iCoupler technology to combine a 3-channel isolator, a CAN transceiver, and an Analog Devices isoPower dc-to-dc converter into a single, surface mount, small outline integrated circuit (SOIC) package.

    The devices are powered by a single 5 V supply, realizing a fully isolated solution for CAN and CAN FD. Radiated emissions from the high frequency switching of the dc-to-dc converters are kept below EN 55022 Class B limits by continuous adjustments to the switching frequency.

    The ADM3055E/ADM3057E provide complete isolation between the CAN controller and physical layer bus. Safety and regulatory approvals (pending) for 5 kV rms isolation voltage, 10 kV surge test, and 8.3 mm creepage and clearance ensure the ADM3055E meets application reinforced isolation requirements. The ADM3057E has an isolation voltage of 3 kV rms and 7.8 mm creepage in a 20-lead, wide body SOIC. Low propagation delays through the isolation support longer bus cables. Slope control mode is available for standard CAN at low data rates. Standby mode minimizes power consumption when the bus is idle or if the node goes offline.

    Silent mode allows the TXD input to be ignored for listen only mode. Dominant timeout functionality protects against bus lock up in a fault condition. The current limiting and thermal shutdown features protect against output short circuits. The devices are fully specified over an industrial temperature range of − 40°C to +105°C.

    Key Features:

    • 3 kV rms signal and power isolated CAN transceivers
    • isoPower integrated isolated dc-to-dc converter
    • VIO pin for 1.7 V to 5.5 V logic levels
    • ISO 11898-2 : 2016 compliant (CAN FD)
    • Data rates up to 12 Mbps for CAN FD

    For more information, visit:

    ELE Times Research Desk
    ELE Times Research Desk
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