The MLX91801 is a system in a package (SIP) combining an analog pressure sensor and a low-power sensor interface with an MLX16 microcontroller in a custom, pressure ported, plastic SO16 package.

The device measures pressure, temperature and supply voltage. The pressure sensing element is a MEMS based absolute pressure sensor. The communication interface provides commands for receiving and sending data to the host system.

A standard software library with low-level routines gives access to all the IC’s functions. Application examples provided by Melexis offer an introduction to the Melexis microcontroller programming and allow quick custom developments.

The MLX91801 pressure sensor block offers 1% full scale accuracy. The default pressure range is 100 - 800 kPa. Other ranges are available by request.

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Top Features

  • Low-power microcontroller-based pressure-temperature-battery monitor, ideally suited for TPMS

  • Different available pressure ranges up to 1.400 kPa

  • Measurement of car and truck tire pressure with 1% precision

  • Sleep current 0.25 µA

  • Run mode current 340 µA

  • Temperature compensation of pressure sensor and oscillator

  • Diagnostics for system error detection

  • Motion detection by external shock sensor

  • Robust package

  • Shock survival up to 4000 G

  • 7 GPIO pins (digital IN/OUT, analog IN)

  • Compatible with existing Remote Keyless Entry (RKE) systems

  • Very sensitive LF interface for short-range wireless communication using 125 KHz

  • Automotive qualified
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Tire pressure monitoring sensor (TPMS) - MLX91801

Features and benefits

  • Low-power microcontroller-based pressure-temperature-battery monitor, ideally suited for TPMS

  • Different available pressure ranges up to 1.400 kPa

  • Measurement of car and truck tire pressure with 1% precision

  • Sleep current 0.25 µA

  • Run mode current 340 µA

  • Temperature compensation of pressure sensor and oscillator

  • Diagnostics for system error detection

  • Motion detection by external shock sensor

  • Robust package

  • Shock survival up to 4000 G

  • 7 GPIO pins (digital IN/OUT, analog IN)

  • Compatible with existing Remote Keyless Entry (RKE) systems

  • Very sensitive LF interface for short-range wireless communication using 125 KHz

  • Automotive qualified

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