CAN Transceiver Streamlines Design of Automotive Communications

ON Semiconductor is now offering the AMIS-30663 high-speed CAN transceiver, which provides an interface between a CAN controller and the physical bus and withstands all voltage transients associated with the automotive environment. This simplifies the design of 12V and 24V automotive and industrial applications requiring CAN communication at rates up to 1Mbaud.

To minimise the need for external components, the AMIS-30663 features a variety of built-in capabilities, including a time-out function that prevents bus lines being driven to a permanent dominant state, which can otherwise lead to the blocking of all network communication. Built-in protection includes current-limiting circuitry to protect the transmitter output stage from damage caused by short circuit to either positive or negative supply voltage. A thermal protection circuit protects the IC from damage by switching off the transmitter when the junction temperature exceeds 160°C.

Fully compatible with the ISO 11898-2 standard, the AMIS-30663 provides differential signalling to the CAN bus via the Transmit and Receive pins of the CAN controller. The IC provides designers with the option of 3.3V or 5V logic-level interfaces, ensuring compatibility with existing applications and lower-voltage designs. Matched output signals eliminate the need for a common-mode choke by minimising electromagnetic emission, while the wide, ±35V common-mode voltage range of the receiver inputs ensures good common-mode transient signal rejection.

 

FEATURES Certified authentication on CAN transceiver conformance (d1.1) 1Mbit/s speed Common-mode choke is not required No disturbance of the bus lines with an un-powered node Thermal protection Bus pins protected against transients in an automotive environment Proof against short-circuit to supply voltage and ground Logic-level inputs compatible with 3.3V devices ESD protection level for CAN bus up to ±4kV

APPLICATIONS 12V and 24V industrial and automotive applications

 

 

ON Semiconductor / AMIS-30663