Microchip Technology Inc
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AT42QT1481

Status: In Production

Features:

  • Certified according to IEC/EN 60730 (Ed. 4.0) / IEC/EN 60335 (Ed. 5.0) for Appliance safety class B to speed up product level certification process
  • 48 touch buttons
  • mutual touch sensing - QMatrix
  • flexible sensor design
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The Microchip's AT42QT1481 is a capacitive touch controller with configurable 48-QTouch buttons. The Microchip QMatrix sensing algorithm (mutual capacitance) enables the user to achieve more buttons than there are pins because of this matrix layout. This capability makes the device ideal for home appliance customers that require high button counts at low cost. The button sensors can be constructed in a variety of shapes and sizes. The device includes all signal processing functions necessary to provide stable sensing under a wide variety of changing conditions and frequencies (Conducted Immunity certified to EN61000-4-6 Level 2B).

The AT42QT1481 is certified to meet the European Standards (EN) & International Electrotechnical Commission (IEC) 60730 class B home appliance certifications. IEC/EN 60730 (Ed. 4.0) / IEC/EN 60335 (Ed. 5.0) standards cover mechanical, electrical, electronic, EMC, and abnormal operation of appliances. These certifications assure safe operation within an appliance if a fault within the system is detected by shutting it down. Although the certifications are conducted at the system level, selecting the right microcontroller (MCU) increases the ease of passing the certification and helps in bringing a product faster-to-market. With this certification, manufacturers can now easily design household appliances that are IEC/EN-certified with Microchip capacitive touch controllers for button, slider and wheel capability. This device also includes Failure Mode Effects Analysis (FMEA) for self-testing purposes to enable users to get their products to market quicker and with more safety and security.

Additional Features
    • Certified according to IEC/EN 60730 (Ed. 4.0) / IEC/EN 60335 (Ed. 5.0) for Appliance safety class B to speed up product level certification process
    • 48 touch buttons
    • mutual touch sensing - QMatrix
    • flexible sensor design
Parametrics
Name
Value
Product Type
Proximity/Keys/Slider
Max Number of Keys
48
Interface
SPI and UART
Voltage Range
4.80V - 5.30V

Documents

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Data Sheets

Brochures

12/10/2016
4660KB

Quality-Reliability-ISOs

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
QT2 Xplained Pro extension kit
QT2 Xplained Pro extension kit ( ATQT2-XPRO )

QT2 Xplained Pro is a QTouch Surface extension board for Xplained Pro boards that demonstrates the Peripheral Touch Controller (PTC) as a high performance touch-surface controller. The PTC controller uses very little power and resources from the MCU, which makes it easy to integrate touch surface support to your main project.

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SLCD1 Xplained Pro extension kit
SLCD1 Xplained Pro extension kit ( ATSLCD1-XPRO )

SLCD1 Xplained Pro is an extension kit with a 96-segment LCD display. It connects to Xplained Pro evaluation kits with segment LCD extension headers. For supported kits, see the related tools tab.

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SAMC20 QTR Demo
SAMC20 QTR Demo ( ATSAMC20-QTRDEMO )

The SAM C20 QTouch Robustness Evaluation kit demonstrates the high capacitive touch performance of the Peripheral Touch Controller (PTC) while achieving best-in-class conducted immunity and moisture tolerance required in home appliance and industrial applications.

The demo is based on the QTouch Library.

Key features:

    ...

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    QT6 Xplained Pro
    QT6 Xplained Pro ( ATQT6-XPRO )

    The QT6 Xplained Pro is a QTouch Surface extension board for Xplained Pro boards that demonstrates the Peripheral Touch Controller (PTC) as a high performance touch-surface controller. The PTC controller uses very little power and resources from the MCU, which makes it easy to integrate touch surface support to your main project.

    Learn More
    Add To Cart
    SAMD20 QTR Demo
    SAMD20 QTR Demo ( ATSAMD20-QTRDEMO )

    The SAM D20 QTouch Robustness Evaluation kit demonstrates the high capacitive touch performance of the Peripheral Touch Controller (PTC) while achieving best-in-class conducted immunity and moisture tolerance required in home appliance and industrial applications.

    The demo is part of the QTouch Safety Platform, key features of the QTouch Safety Platform are:

    ...

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    QT1 Xplained Pro extension kit
    QT1 Xplained Pro extension kit ( ATQT1-XPRO )

    QT1 Xplained Pro kit is an extension kit that enables evaluation of self- and mutual capacitance mode using the Peripheral Touch Controller(PTC). The kit shows how easy it is to design a capacitive touch board solution using the PTC without the need for any external components. The kit includes two boards, one using self-capacitance and one using mutual capacitance.

    If you want to

    ...

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    QT3 Xplained Pro extension kit
    QT3 Xplained Pro extension kit ( ATQT3-XPRO )

    QT3 Xplained Pro is a QTouch keypad extension board demonstrating an ultra-low power keypad design using the Peripheral Touch Controller (PTC). Utilizing the PTCs low power capabilities it enables markets lowest power wake-up on touch.

    Note: QT3 Xplained Pro requires a compatible Xplained Pro evaluation kit. See the Related Tools tab for supported models.

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    RoHS Information

    Part Number
    Device Weight
    Shipping Weight
    Lead Count
    Package Type
    Package Width
    Solder Composition
    JEDEC Indicator
    RoHS
    China EFUP
    AT42QT1481-AUR
    0.273300
    0.599000
    44
    TQFP
    10x10x1mm
    Matte Tin
    e3
    Rohs icon
    efup china icon
    AT42QT1481-AU
    0.273300
    1.187500
    44
    TQFP
    10x10x1mm
    Matte Tin
    e3
    Rohs icon
    efup china icon
    To see a complete listing of RoHS data for this device, please Click here
    Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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