Microchip Technology

AT42QT1245-AU  

Sensor and Detector Interfaces

AT42QT1245-AU Description

The AT42QT1245-AU is a highly advanced touch sensor IC designed by Microchip Technology, belonging to the QMatrix™ series. This interface IC chip is specifically engineered to provide robust and reliable touch sensing capabilities, making it ideal for a wide range of applications requiring up to 24 key inputs. The AT42QT1245-AU operates within a supply voltage range of 3V to 5V and draws a supply current of 6.6mA, ensuring efficient power usage. It is available in a 32TQFP package, which is ideal for surface mount applications, and comes in a tray packaging format.

This touch sensor IC is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and regulatory standards. The device supports SPI interface communication, facilitating seamless integration into various electronic systems. With a resolution of 10 bits, the AT42QT1245-AU offers precise and accurate touch detection. The moisture sensitivity level (MSL) of 3 ensures that the IC can withstand up to 168 hours of exposure to moisture, making it suitable for a variety of environmental conditions.

AT42QT1245-AU Features

• High Input Capacity: Supports up to 24 key inputs, making it suitable for complex touch interfaces.
• Efficient Power Usage: Operates within a 3V to 5V supply voltage range and draws only 6.6mA of supply current.
• Robust Packaging: Available in a 32TQFP package, ideal for surface mount applications.
• Environmental Compliance: REACH unaffected and RoHS3 compliant, ensuring it meets strict environmental and regulatory standards.
• Moisture Resistance: MSL 3 rating allows for up to 168 hours of moisture exposure.
• Precise Detection: Features a 10-bit resolution for accurate touch sensing.
• Communication Interface: Supports SPI interface for easy integration into electronic systems.

AT42QT1245-AU Applications

The AT42QT1245-AU is highly versatile and can be utilized in a variety of applications where reliable touch sensing is required. Some specific use cases include:

• Consumer Electronics: Ideal for touch-sensitive controls in smartphones, tablets, and other portable devices.
• Home Appliances: Can be used in touch-sensitive interfaces for appliances such as refrigerators, washing machines, and ovens.
• Automotive Systems: Suitable for touch controls in automotive dashboards and infotainment systems.
• Industrial Controls: Provides reliable touch sensing for industrial control panels and human-machine interfaces (HMIs).
• Medical Devices: Can be integrated into touch-sensitive controls for medical equipment, ensuring precise and reliable operation.

Conclusion of AT42QT1245-AU

The AT42QT1245-AU by Microchip Technology is a standout touch sensor IC that offers a combination of high input capacity, efficient power usage, and robust environmental compliance. Its 10-bit resolution and SPI interface make it a reliable choice for precise touch detection in a variety of applications. Whether used in consumer electronics, home appliances, automotive systems, industrial controls, or medical devices, the AT42QT1245-AU provides a reliable and efficient solution for touch sensing needs. Its compliance with REACH and RoHS3 standards ensures that it meets the highest environmental and regulatory requirements, making it a preferred choice for modern electronic designs.

AT42QT1245-AU Documents

Download datasheets and manufacturer documentation for AT42QT1245-AU

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