Trade Shows

26.02. - 28.02.2019, Nuremberg




Sample Request
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The samples will be free of charge up to a part cost of €30,-. Shipment is only possible to Germany, Austria and Switzerland.
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Germany / General
André Huntrieser
✆: +49 (0) 2129 - 376-202
✉: Send email
Field Applications Engineer
Günter Fuchs
✆: +49 (0) 2129 376-200
✉: Send email
Tech Support
Raphael Balke
✆: +49 (0) 2129 376-200
✉: Send email

Austria / Switzerland
Karl Eder
✆: +43 (0) 7448 - 21643-11
✉: Send email





The MLX75031 Optical Gesture & Proximity Sensing IC independently controls up to 2 Active Light channels. Both channels have externally connected photodiodes. The external LEDs can be driven up to 150 mA by the built-in LED driver. The MLX75031 actively controls up to two independent Active Light measurement channels. Each channel works with one or multiple LEDs, of any type, combined with one or more photodiodes, of any type. Additional Active Light channels can be added through multiplexing. Integrated DC light suppression makes the sensors highly tolerant to background light interference. This primary function is complemented with two integrated ambient light channels. Internal control logic, configurable user registers and SPI communication enable intuitive and programmable operation.
Extra features include a watchdog timer, on-board temperature sensor and self-diagnostics are built-in to facilitate robust product design. The digital output from the Active Light and ambient light channels can be used for proximity and ambient light detection. Gestures such as swipe, zoom, scroll can be recognized by software algorithms that can run on the customer’s microcontroller. Reliable communication is assured via an SPI interface.
The Melexis MLX75031 offers great flexibility in the placement and selection of external components. Each customer can optimize their design with their own selection of LED and photodiode, hereby allowing specific sensing range and/or viewing angle, while maintaining superior background light robustness. Optical proximity and gesture detection enables a more intuitive human–machine interaction (HMI) experience.


Features Application examples
    • Two independent simultaneously operating active light measurement channels
    • Integrated DC light cancellation circuitry for active light channel DC light suppression
    • Built-in 150mA LED drivers
    • High input capacitance tolerant input current terminals
    • Extremely high degree of adaptability for different optical systems
    • Integrated 16Bit ADC for high resolution A2D conversion
    • Built-in background light suppression
    • Integrated temperature sensor
    • Stand-by and sleep modes for low power consumption
    • Integrated watchdog timer
    • Digital communication interface via SPI
    • Supply Voltage range VDD from 3.135V to 3.465V
    • Temperature range from -40°C to 105°C (Code R)
    • Consumer Temperature range from 0°C to 70°C (Code C)
    • 24L QFN 4x4 package
  • Optical proximity sensing & display dimming
  • Driver/passenger discrimination
  • Home appliances with temperature control
  • Industrial & Robotics
  • Touchless gesture recognition:
    • Simple gesture recognition, like left/right swipe
  • Temperature control in printers and copiers
  • Touch Screen Wake-up on Proximity