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EEPROM-configurable IC eases TPMS module development

EEPROM-configurable IC eases TPMS module development

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By eeNews Europe



The MLX91802Uni-ROM concept makes available Melexis’ firmware. This means that any TPMS incorporating this device can be fully developed without the need for custom software engineering. By using simple configuration tools, operating behaviors can be set so that the MLX91802 can be deployed in a customized TPMS module without writing any code.

It provides a complete firmware solution for TPMS based on 6 modes: Storage, parking, driving, pressure alert, fault and test.

  • Storage mode minimizes power consumption until sensor is installed and activated on a vehicle.
  • Driving and parking are the main operational modes supporting transmission of the measured pressure, temperature and battery voltage to the vehicle computer via the RF channel with programmable periodicity.
  • Pressure Alert mode ensures a quick response to a detected rapid pressure drop.
  • Fault mode appears if any available sensor or is faulty.
  • Test mode facilitates EOL module testing and diagnostics.

The Uni-ROM concept allows setting of the main parameters, defining the features of the different modes and the transitions between them. Configuration and customer data are stored in the internal EEPROM memory of the MLX91802. As well as shortening design time, utilizing Uni-ROM instead of a custom ROM permits ordering of low unit volumes.


For more information visit www.melexis.com

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