Fully-certified ESD-robust FlexRay transceiver

June 20, 2013 // By Graham Prophet
Infineon is expanding its portfolio of LIN and CAN automotive communications ICs with its first FlexRay transceiver. The TLE9221SX is fully compliant to the most current FlexRay Electrical Physical Layer Specification version 3.0.1. It enables very high data rates of up to 10 Mbit/sec for in-vehicle communication and features ESD rating of ±10 kV.

As an interface between the communication controller unit and bus wires, the TLE9221SX transceiver was developed for use in suspension and chassis control applications as well as for power steering, engine and transmission control units.

“There is a noticeable trend towards extending the FlexRay bus from chassis control and body gateway applications to the powertrain domain, including engine and transmission control,” says Frank Schwertlein, Vice President and General Manager, Standard Power of the Automotive division at Infineon Technologies AG. “Infineon offers a fully certified FlexRay transceiver with extreme robustness and best-in-market ESD rating, capable of handling data rates of up to 10 Mbit/sec to support this market trend.”

The TLE9221SX has very low electromagnetic emissions (EME) and therefore supports large networks and complex bus topologies. It is also optimised for high immunity against electromagnetic interferences (EMI) and as a result the device passed the electromagnetic compliance (EMC) tests at the Germany-based Ingenieurbüro für industrielle Elektrotechnik/Elektronik (IBEE), an internationally known independent test house for the automotive certification of transceiver products. In addition, the TLE9221SX fulfills the latest revision of the German OEM Hardware Requirement Specification and is therefore pin-compatible and footprint-compatible to other FlexRay transceivers available on the market. The 16-pin TLE9221SX can easily be integrated into existing designs, because it can be placed on a 20-pin FlexRay transceiver footprint. Its bus pins are protected against short circuits to positive as well as negative battery voltage levels. Also, the device offers over-temperature protection including an integrated thermal shutdown. It occupies a PG-SSOP-16 package.

Infineon; www.infineon.com/flexray-transceiver and www.infineon.com/automotive-transceivers