描述 Description

The ATMXT1189TD-A Automotive touchscreen controller is aimed at display sizes up to 13”; used in center stacks, navigation systems or rear seat entertainment systems. This brand new family of automotive touchscreen controller brings Microchip’s unmatched Adaptive Sensing technology to the Automotive market. Microchip’s latest solution offers superior signal-to-noise capability to address the requirements of thick lens and thick glove support;?supporting multiple thick gloved touches and?operation when fingers or surfaces are wet or moist, whilst preventing the water from being detected as a false touch event.? This technology also enables adaptive touch utilizing self-capacitance and mutual-capacitance measurements so all touches are recognized and false touch detections are avoided.Microchip’s new signal shaping technology is lowering emissions significantly and ensures that large touchscreen solutions based on the ATMXT1189TD-A meet the CISPR-25 Level 5 requirements for electromagnetic interference in Automobiles.The controller also incorporates a new self and sensor diagnostic function, which constantly monitors the integrity of the touch system. The new ATMXT1189TD-A device brings these smart diagnostic features in support of the Automotive Safety Integrity Level as specified in ISO26262.Please contact your local Microchip sales office for pricing information and to place an order.

特性 Features

Supports up to 16 concurrent touches in real time with touch size reporting
Fully automotive-qualified (Grade 2), operating temperature range of -40 to +105 degC
Communication via a I2C serial interface up to 1MHz
Communication via a SPI interface up to 8MHz
External high voltage supply option to increase the signal to noise ratio (SNR)
Support multiple thick glove (5mm) touches
Support thick lens (up to 3mm plastic)
Superior moisture performance
Up to 16 touch keys
Package: LQFP144