EEPROM-configurable tire pressure monitoring sensor (TPMS)

MLX91802

Obsolete product - not supported for new designs.

The MLX91802 is a system in package solution for tire pressure monitoring system (TPMS) implementations that combines an analog pressure sensor and a low power sensor interface with an MLX16 16-bit RISC-based microcontroller.

It is housed in a compact, pressure ported, plastic SO16 package and has an operational temperature range of -40 °C to 125 °C. The Uni-ROM concept makes available Melexis’ ready-to-use firmware: any TPMS incorporated 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.

Configuration and customer data are stored in the internal EEPROM memory.

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Top features

  • Ready to use application firmware implementation

  • Operating modes: Storage, parking, driving, pressure alert, test

  • Pressure ranges: 100...450 kPa, 100...800 kPa, 100...1.400 kPa

  • Fully configurable RF-protocol

  • Programmable wake-up and RF-transmission periods

  • Adjustable pressure and temperature measurement timings

  • Programmable modes transition behavior

  • Adjustable motion detection threshold

  • Sensitivity adjustment of the 125 kHz LF receiver

  • Programmable LF Wake-Up ID

  • Opportunity to disable LF listening in Driving Mode

  • Factory calibrated sensor

  • Sleep current < 0.25 uA

  • Low measurement power consumption (0.15 uA*s for pressure measurement)

  • Built-in self test features
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EEPROM-configurable tire pressure monitoring sensor (TPMS) - MLX91802

Features and benefits

  • Ready to use application firmware implementation

  • Operating modes: Storage, parking, driving, pressure alert, test

  • Pressure ranges: 100...450 kPa, 100...800 kPa, 100...1.400 kPa

  • Fully configurable RF-protocol

  • Programmable wake-up and RF-transmission periods

  • Adjustable pressure and temperature measurement timings

  • Programmable modes transition behavior

  • Adjustable motion detection threshold

  • Sensitivity adjustment of the 125 kHz LF receiver

  • Programmable LF Wake-Up ID

  • Opportunity to disable LF listening in Driving Mode

  • Factory calibrated sensor

  • Sleep current < 0.25 uA

  • Low measurement power consumption (0.15 uA*s for pressure measurement)

  • Built-in self test features

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