NCV7351D10R2G

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1. Describe

The NCV7351D10R2G CAN transceiver is an interface between Controller Area Network (CAN) protocol controller and physical Bus, available for 12 V and 24 V systems. transceiver Provides differential transfer capability for bus and differential Receive capable CAN controller. The NCV7351D10R2G complements CAN high-speed transceivers family complements the NCV734x CAN standalone transceivers and Previous generations of products, such as AMIS42665, AMIS3066x, etc. The NCV7351D10R2G is an addition to the NCV7351-based series Transceivers have improved bit timing symmetry behavior to cope with CAN Flexible Data Rate Requirements (CAN FD). Due to the wide common-mode voltage range of the receiver input and other design features, the NCV7351D10R2G is able to achieve excellent Electromagnetic susceptibility (EMS) levels. Likewise, extremely Low electromagnetic emissions (EME) are achieved through excellent output signal matching.

2. Features

    1. ISO 11898−2 compliant

    2. High speed (up to 1 Mbps)

    3. NCV7351F version has loop delay symmetry specification

    4. The VIO pin on the NCV7351(F)D13 version allows direct connection With 3 V to 5 V microcontroller

    5. EN pin on NCV7351D1E version allows toggling Transceiver to very low current shutdown mode

    6. Excellent electromagnetic susceptibility (EMS) levels Frequency Range. Very Low Electromagnetic Emissions (EME) Low EME also has no common mode (CM) chokes

    7. Bus pins protected from >15 kV system ESD pulses

    8. Transmit Data (TxD) explicit timeout function

    9. Chip behavior is predictable under all power conditions. Do not Interference on bus lines by unpowered nodes

  10. Bus pins are short-circuit protected to supply voltage and ground

  11. Protects bus pins from transients in automotive surroundings

  12. Thermal Protection

  13. These are Pb-free devices

3. Application

    1. car

    2. Industrial network

4. FUNCTIONAL DESCRIPTION

    1. Normal Mode

        In the normal mode, the transceiver is able to communicate via the bus lines. The signals are transmitted and received to the CAN controller via the pins TxD and RxD. The slopes on the bus lines outputs are optimized to give low EME.

    2. Silent Mode

        In the silent mode, the transmitter is disabled. The bus pins are in recessive state independent of TxD input. Transceiver listens to the bus and provides data to controller, but controller is prevented from sending any data to the bus.

    3. Off Mode

        In Off mode, complete transceiver is disabled and consumes very low current. The CAN pins are floating not loading the CAN bus.

    4. Over−temperature Detection

        A thermal protection circuit protects the IC from damage by switching off the transmitter if the junction temperature exceeds a value of approximately 180°C. Because the transmitter dissipates most of the power, the power dissipation and temperature of the IC is reduced. All other IC functions continue to operate. The transmitter off−state resets when the temperature decreases below the shutdown threshold and pin TxD goes high. The thermal protection circuit is particularly needed in case of the bus line short circuits.

    5. TxD Dominant Time−out Function

        A TxD dominant time−out timer circuit prevents the bus lines being driven to a permanent dominant state (blocking all network communication) if pin TxD is forced permanently low by a hardware and/or software application failure. The timer is triggered by a negative edge on pin TxD. If the duration of the low−level on pin TxD exceeds the internal timer value tdom, the transmitter is disabled, driving the bus into a recessive state. The timer is reset by a positive edge on pin TxD. This TxD dominant time−out time (tdom(TxD)) defines the minimum possible bit rate to 12 kbps.

    6. Fail Safe Features

        A current−limiting circuit protects the transmitter output stage from damage caused by accidental short circuit to either positive or negative supply voltage, although power dissipation increases during this fault condition. The pins CANH and CANL are protected from automotive electrical transients . Internally, pin TxD is pulled high, pin EN and S low should the input become disconnected. Pins TxD, S, EN and RxD will be floating, preventing reverse supply should the VCC supply be removed.

5. Quality

    1. Automotive and other applications requiring NCV prefix Unique site and control change requirements; AEC-Q100 Qualified and PPAP capable