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Bus transceiver promises reliable car networking

03 Aug 2012

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ON Semiconductor has introduced what it says is a highly robust, single-channel bus transceiver IC capable of data transfer speeds up to 10Mb/s. The NCV7381 extends the company�s line of automotive networking products. The company added that the device supports FlexRay Electrical Physical Layer Specification Rev. 3.0.1, the latest version of the protocol.

�FlexRay is a rapidly emerging standard for in-vehicle networking, superseding current controller area network (CAN) and local interconnect network (LIN) based systems, with an order of magnitude increase in data transfer speeds as well as greater reliability,� noted Jim Alvernaz, director of the automotive product division at ON Semi. �It enables more advanced safety, powertrain and comfort mechanisms to be implemented into the next generation of automobiles. By offering a line driver solution that can act as a robust drop-in replacement for existing FlexRay transceivers, ON Semiconductor can enable the quick and easy upgrade of electronic control units to support the latest version of this standard.�

The NCV7381�s mode control functionality is optimized for nodes permanently connected to car batteries, stated the company. The device offers low power operation and low power mode receiver that allows remote wake-up detection.

Capable of running from a 5.5V to 50V battery supply, the NCV7381 can be integrated into both 12V and 24V automotive power systems. It has strong electromagnetic susceptibility (EMS) performance across its full frequency range, boasted the company. Interference with neighboring circuits is reduced due to its low electromagnetic emission on the bus lines. The device also has a high degree of electrostatic discharge protection and is able to cope with in excess of 10kV ESD pulses. The NCV7381 is AEC qualified and has an operational temperature range of -40�C to 125�C.

The NCV7381 is supplied in a Pb-free, RoHS-compliant SSOP-16 package and priced at $1.60 for 2000 unit quantities.

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