Freescale has announced a family of robust CAN transceivers designed for high-speed performance and reliability, and to assist achieving compliance with increasingly stringent industrial and automotive safety requirements. The MC33901 and MC34901 chokeless CAN high-speed physical layer transceivers deliver EMC performance and high ESD tolerance without the need for external components. The devices also offer fail-safe features to assist with system functional safety, as well as low quiescent current down to 8 µA.
The MC33901 and MC34901 products convert digital protocol information into analogue CAN communication across in-vehicle networks, as well as long-length CAN node interconnect for industrial applications. The devices are suitable for a broad range of applications including safety-critical industrial motor control, factory automation and industrial robotics systems, as well as automotive body electronics, power train and infotainment systems. Both products offer performance at 2 Mbps baud rate to address CAN FD (flexible data) application requirements.
The devices exceed stringent EMC and ESD requirements without added choke (±6 kV ESD, >36 Bm DPI); they have a low-emission design combined with high immunity for optimum EMC performance; they have 5V and 3.3V I/O compatibility with auto-detect; and feature industry-specific product options:
- Automotive: Built-in “Tx Dominant Timeout” feature (MC33901)
- Industrial: Built-in support for long-length and low baud rate networks (MC34901)
Support includes a small form-factor evaluation board (picture), as well as OEM certification reports from external laboratories to facilitate design selection.