CA-IF1043DF-Q1

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Automotive CAN Transceiver

The CA-IF1043x devices are control area network (CAN) transceivers with integrated protection for industrial and automotive applications. These devices are designed for using in CAN FD networks up to 5 Mbps and feature ±58V extended fault protection on the CAN bus for equipment where overvoltage protection is required. This family of CAN transceivers also incorporate an input common-mode range(CMR) of ±30V, exceeding the ISO 11898 specification, well suited for applications where ground planes from different systems are shifting relative to each other. The CA-IF1043x series devices include a dominant timeout to prevent bus lockup caused by controller error or by a fault on the TXD input. When the TXD remains in the dominant state (low) for longer than tDOM, the driver is switched to the recessive state, releasing the bus and allowing other nodes to communicate. The transceivers feature standby (nSTB) and enable (EN) control pins for different modes of operation: normal operation and standby mode, silent mode, sleep mode for low current consumption, as well as wake-up capability over CAN bus or via the WAKE pin. Inhibit output (INH) can be used to control one or more external voltage regulators presented on a node to reduce the battery power consumption at system level. Also, the CA-IF1043x devices provide low level translation to simplify the interface with low voltage CAN controllers. The CA-IF1043x family of devices is available in a standard 14-pin narrow-body SOIC package and 14-pin DFN package, operates over the -55°C to +150°C junction temperature range.

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  • Features

    Meets the ISO 11898-2:2016 and ISO 11898-5:2007 physical layer standards

    Support classic CAN and 5 Mbps CAN FD (flexible data rate)

    Short and fast loop propagation time

    Support high data rate in loaded CAN networks

    Operation modes

    High-speed normal mode
    Silent mode disables driver
    Low-current standby mode
    Low-power sleep mode
    Support remote wake-up and local wake-up

    Ideal passive behavior when unpowered

    Bus and logic terminals are high impedance (no load)
    Power up/down with glitch free operation on

    bus and RXD output

    Integrated protection increases robustness

    ±58V fault-tolerant CANH and CANL
    ±30V extended common-mode input range(CMR)
    Undervoltage protection on VCC, VSUP and VIO supply terminals
    Transmitter dominant timeout prevents lockup, data rates down to 5 kbps
    Thermal shutdown protection(TSD)
    CAN bus short-circuit detection and TXD to RXD short detection
    Cold start-up detection (battery power-up first)

    1.7 to 5.5V Logic-supply (VIO) range

    battery supply accepts up to 45V voltage

    –55°C to 150°C junction temperature range

    Available in SOIC14 and DFN14 packages

    AEC-Q100 Grade 1

  • Applications

    • Industrial equipment

    • Motor control

    • Building automation

    • Automotive gateway

  • Device Information

    Part numberPackagePackage size(NOM)
    CA-IF1043NF-Q1SOIC143.9mm x 8.65mm
    CA-IF1043DF-Q1DFN143.0mm x 4.5mm
  • Simplified Functional Diagram

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