onsemi AMIS42670ICAH2RG High-Voltage CAN Transceiver for Automotive Networks

The increasing complexity of automotive electronic systems demands robust and reliable communication networks. The Controller Area Network (CAN) has long been the backbone for in-vehicle communication, and its evolution continues to meet stricter performance and safety requirements. The onsemi AMIS42670ICAH2RG represents a significant advancement in this field, serving as a high-voltage CAN transceiver specifically engineered for the harsh environment of automotive applications.

This device is designed to interface between a CAN protocol controller and the physical two-wire CAN bus. Its primary function is to convert the digital data signals from the controller into differential bus signals for robust noise-immunity transmission, and vice versa for reception. A key differentiator of the AMIS42670ICAH2RG is its high-voltage tolerance, capable of withstanding ±42 V on the bus pins. This exceptional ruggedness offers superior protection against short-circuit events and voltage transients commonly encountered in automotive environments, such as load-dump conditions.

Furthermore, the transceiver boasts very low electromagnetic emission (EME) and high electromagnetic immunity (EMI), which are critical for ensuring error-free data communication and for complying with international automotive standards like ISO 11898-2 and OEM-specific requirements. Its low-power management features, including standby and sleep modes, are essential for supporting modern vehicle architectures that prioritize energy efficiency, especially in electric and hybrid electric vehicles (EVs/HEVs).

The device also integrates multiple protective features, including thermal shutdown and transient protection circuitry, safeguarding both the transceiver itself and the broader network from potential damage. Its compatibility with 3.3 V and 5 V microcontrollers provides design flexibility for various electronic control units (ECUs) throughout the vehicle.

ICGOOODFIND: The onsemi AMIS42670ICAH2RG is a high-reliability, high-voltage CAN transceiver that provides automotive designers with a robust solution for building resilient network nodes. Its exceptional protection against electrical hazards and excellent EMC performance make it an ideal choice for safety-critical and powertrain applications.

Keywords: High-Voltage CAN Transceiver, Automotive Networks, Electromagnetic Compatibility (EMC), Fault Protection, Low Power Management.