ATMXT2912TD-ABVA3

Overview

The ATMXT2912TD-ABVA3 is an automotive-grade maXTouch touchscreen controller featuring a charge-transfer acquisition engine for high-accuracy capacitive sensing. It supports up to 2911 nodes, enabling configurations with 41 transmit and 71 receive lines for screens up to 16.82 inches. The device tracks up to 16 concurrent touches with a typical report rate of ≥90 Hz and initial latency under 20 ms. Operating within a –40°C to +105°C range, it utilizes I²C or SPI interfaces and requires 3.3V nominal supplies for digital, I/O, and analog sections, alongside an external XVdd drive up to 8.5V.

Feature Summary

• AEC-Q100 qualified with CISPR 25 compliance for automotive EMC robustness
• Supports mutual and self-capacitance measurements with moisture/water compensation
• Integrated lens bending and palm recovery algorithms for noise suppression
• Includes 60-byte CRC checksummed data store and 64-byte user custom data area

Applications

• Automotive infotainment displays
• Advanced Driver Assistance Systems (ADAS) touch interfaces
• Large-format in-vehicle control panels

Procurement Notes

Verify the ordering suffix 'VA3' corresponds to the specific AEC-Q100 qualification and tray packaging format listed in the product identification system. Confirm that the firmware revision 5.0.AA aligns with the target application requirements before procurement.

Selection Notes

Select this component for applications requiring Grade 2 temperature operation (-40°C to +105°C). Ensure the design accommodates the 176-lead LQFP package dimensions (24 × 24 × 1.4 mm) and provides the necessary 8.5V drive capability for the XVdd pin if utilizing large sensor arrays.

Part Context

This part belongs to the mXT2912TD family, designed for ultra-wide aspect ratio displays. The 'AB' designation indicates the QFP package and extended temperature range, while 'VA3' specifies the automotive qualification level and standard tray shipping method.

Replacement Considerations

The ATMXT2912TD-ABRVA3 serves as the tape-and-reel equivalent of this part number, offering identical electrical and functional specifications but differing only in the shipping packaging format.