car access functions

Very common car access functions are the immobilizer and the remote keyless entry system. For more advanced systems passive entry and passive start functions are implemented that allow unlocking or starting of the car by simply getting close to it.

TI RFID Automotive products offer market unique features and performance. All car side products are optimized for full integration into the Central Body Control Module (BCM). The Immobilizer LF antenna could be easily connected to the LF base station with a flexible cable length up to 13 feet (4m). The cable length could be varied without changing the adaptation to the base station. The integration of the base station reduces system component count and space requirements.
Immobilizer: The LF Immobilizer interface of all TI products works with a special half duplex transmission achieving market leading communication range resulting in flexible LF antenna placement at the key fob side and compact key fob design. TI offers compatible parts for the key fob from the transponder, over remote keyless entry controller to passive entry devices. All Immobilizer interfaces work without battery support on the key fob side.