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News
Infineon speeds up in-vehicle communication and makes it secure and reliable with CAN FD transceivers
2016-11-04 | ReturnWith its TLE925x CAN FD transceivers, Infineon Technologies makes data exchange up to 30 times faster than today. The TLE925x reaches transmission speeds of up to 5 Mbit/s. Compared to the classical CAN transceivers with a maximum of 8 byte, the CAN FD transceivers such as TLE925x can send a payload of up to 64 byte per message. This opens up the possibility to check the transmitted data for consistency in the transmitting control unit and to sign it with a 21-bit checksum instead of the 17-bit possible so far. Longer checksums ensure reliable communication between the control units. This makes it possible to better secure data transmission in the vehicle without the application software becoming more complex in the electronic control unit.
Transceivers are an important element of data communication in vehicles
The TLE925x CAN FD transceivers are used, for example, in body control modules and gateways, in power steering, engine and transmission control units as well as in radar and camera-based driver assistance systems. On average, every vehicle today has 17 CAN transceivers. The number should rise to more than 20 within the next five years.
The TLE925x CAN FD transceivers permit an interface voltage to the microcontroller of 3.3 V as well as 5 V for best-possible signal symmetry. The more symmetrical the signals are, the better the electromagnetic compatibility (EMC) is. Compared to the previous CAN generation, Infineon has improved the robustness of the CAN FD transceivers to electromagnetic interference (EMI) in the standard frequency range of 1 MHz to 1 GHz.
The electromagnetic emission (EME) of the TLE925x between 150 kHz and 1 GHz is lower than in any other CAN transceiver available today. At the same time the CAN FD transceivers pass electrostatic discharge tests (ESD) of at least ±8 kV according to IEC61000-4-2.
Infineon offers a comprehensive portfolio of products for a wide variety of bus segments such as CAN FD, CAN with Partial Networking, High-Speed-CAN, LIN and FlexRay. For the protocol variant CAN FD with 5 Mbit/s, Infineon offers, apart from the TLE925x transceivers compliant to ISO11898-2:2016, the matching system basis chips in the TLE9278 Multi-CAN Power-SBC family. The TC3xx multicore microcontrollers in the AURIX™ family have up to 12 CAN FD channels according to ISO 11898-1:2015 and round off CAN FD portfolio of Infineon.
Availability
The CAN FD transceivers in the TLE925x family are already available in sample quantities. They are delivered in the RoHS-compatible standard package DSO-8 or in the extremely compact package TSON-8 with dimensions of only 3mm x 3mm. Volume production is due to start in February 2017. The CAN FD transceivers are compatible with the present classical CAN transceivers.
Further information
Infineon is presenting the new CAN FD transceivers at the electronica 2016 (8-11 November 2016, Munich) in hall A5 at booth 506. Further information is available at www.infineon.com/electronica
Information on the Infineon portfolio for CAN, CAN FD and CAN PN is available at:
www.infineon.com/automotive-networking
www.infineon.com/automotive-transceiver
www.infineon.com/sbc
Information on the AURIX multicore microcontrollers is available at www.infineon.com/aurix
Information Number
INFATV201611-011
Press Photos
The CAN FD transceivers TLE925x speed up in-vehicle communication. Their TSON-8 package has dimensions of only 3mm x 3mm.
TLE925x_TSON-8_Combi
JPG | 1.17 mb | 2960 x 1928 px
Source:http://www.infineon.com/