Microchip logo
Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes

Automotive Touch

The maXTouch® family, known for its superior performance and rich feature set, is the leading touch technology for automotive applications, such as touchscreens and touchpads (supporting 2 inches up to 17 inches in diameter) used in center stack displays, navigation systems, radio human-machine interfaces (HMIs) and rear-seat entertainment systems.

The maXTouch devices provide unlimited touch identification, fast response time, exacting precision, robust operation and low power consumption to touch-based designs.

The maXTouch-T family products support single-layer shield-less designs with a high voltage option that allows for doubling the SNR ratio. In addition, the T-family uses Microchip’s adaptive sensing technology, combining self and mutual capacitance sensing to enable 20mm hover, 5mm gloved touch, 3mm plastic lens support as well as best in class water immunity.

The mXT134E and mXT224E automotive-qualified family members provide dedicated functionalities that meet specific automotive requirements such as high-temperature behavior and reliable operation in harsh environments.

The mXT768E and mXT540E automotive-qualified family members combine these functionalities with the ability to design single-layer shield-less sensors, thus reducing system complexity, cost and power consumption.

The mXT336S and mXT224S automotive-qualified family members comprise excellent performance, a rich feature set, single-layer shield-less designs plus gloved operation. In addition they support a high voltage option that allows for doubling the SNR ratio.

The mXT1664S and mXT1188S automotive-qualified family members bring all the aforementioned features into applications up to 14" in diameter.

The MXT641T, MXT449T and MXT225T automotive-qualified family members bring all the aforementioned features into applications up to 15" in diameter. In addition, the T-family supports the use of adaptive sensing for thick glove and lens support, hover functionality as well as superior water and moisture immunity.
Embedded filters realized in hardware and firmware enable touchscreens supporting gloved finger operation―a key requirement in modern automotive HMI interfaces. Embedded single- and dual-gesture algorithms and the palm suppression functionality allow detection and suppression of unintended touches, such as a resting hand on the screen.