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AT42QT2640-AU - Microchip

Description: Capacitive Touch Sensors 64-Chnl FMEA EN60730

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AT42QT2640-AU - Microchip - PCB symbol
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PCB Footprints
AT42QT2640-AU - Microchip PCB footprint - Quad Flat Packages - Quad Flat Packages - AT42QT2640
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AT42QT2640-AU - Microchip - 3D model - Quad Flat Packages - AT42QT2640
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AT42QT2640-AU Details

  • Manufacturer Part Number:

    AT42QT2640-AU

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    TQFP-44

  • Pin Count:

    44

  • Manufacturer Package Code:

    TQFP-44

  • Country Of Origin:

    Taiwan, Thailand

  • Factory Lead Time:

    9 Weeks

  • Manufacturer:

    Microchip Technology Inc

  • YTEOL:

    14

  • Body Breadth:

    10 mm

  • Body Height:

    1 mm

  • Body Length or Diameter:

    10 mm

  • JESD-609 Code:

    e3

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    44

  • Operating Temperature-Max:

    105 °C

  • Operating Temperature-Min:

    -40 °C

  • Output:

    OPEN-DRAIN

  • Output Range:

    0.60-4.30V

  • Output Type:

    DIGITAL VOLTAGE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Shape/Style:

    SQUARE

  • Sensors/Transducers Type:

    CAPACITIVE TOUCH SENSOR

  • Supply Voltage-Max:

    5.25 V

  • Supply Voltage-Min:

    4.75 V

  • Surface Mount:

    YES

  • Terminal Finish:

    Matte Tin (Sn)

AT42QT2640-AU Frequently Asked Questions (FAQs)

  • Microchip provides a recommended PCB layout in the AT42QT2640-AU datasheet, but it's also recommended to follow general guidelines for capacitive touch sensing PCB design, such as keeping the sensor traces short and away from noise sources, and using a solid ground plane.
  • Calibration involves adjusting the sensor's sensitivity and threshold settings to optimize performance for the specific application. Microchip provides a calibration guide in the datasheet, and also offers a calibration tool as part of their Qtouch Studio software.
  • Yes, but it may require custom tuning of the sensor's settings and calibration. The AT42QT2640-AU is designed to work with standard electrode shapes and sizes, but Microchip provides guidelines for custom electrode designs in the datasheet.
  • Noise and interference can be handled through a combination of hardware and software techniques, such as shielding, filtering, and noise cancellation algorithms. Microchip provides guidelines for noise reduction in the datasheet, and also offers noise reduction features in their Qtouch Studio software.
  • Yes, the AT42QT2640-AU is designed to be low-power and can be used in battery-powered applications. It has a low current consumption of 1.5mA in active mode and 1.2μA in sleep mode, making it suitable for battery-powered devices.

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AT42QT2640-AU Overview

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About Microchip

Microchip Technology Inc. is a leading manufacturer of microcontrollers and semiconductor devices for a wide range of applications in the aerospace, automotive, consumer electronics, industrial, and medical industries. Alongside a comprehensive product portfolio, Microchip Technology Inc. also provides easy-to-use development tools that enable engineers to create optimal designs quickly with minimal iterations to reduce risk while lowering total system costs to market. Headquartered in Chandler, Arizona, th

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Part Image AT42QT2640-AUR Microchip Technology Inc

Capacitive Touch Sensor, Open-drain, 44 Pin, Plastic/epoxy