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AT42QT1085-MU

AT42QT1085-MU Description

The AT42QT1085-MU is a highly integrated touch sensor IC developed by Microchip Technology, designed to provide reliable and efficient touch sensing solutions for a variety of applications. This 8-key touch sensor IC is part of the QTouch™ series and is housed in a 32QFN package, making it suitable for surface-mount applications. It operates within a voltage range of 2V to 5.5V, ensuring compatibility with a wide range of power supplies. The AT42QT1085-MU supports up to 8 input channels and up to 16 LED driver channels, providing extensive control and feedback capabilities. It interfaces with the host system via the SPI protocol, facilitating seamless communication and integration.

AT42QT1085-MU Features

• Series: QTouch™, a renowned series known for its robust touch sensing technology.
• Type: Buttons, specifically designed for touch-based user interfaces.
• Number of Inputs: Supports up to 8 inputs, allowing for multiple touch points.
• LED Driver Channels: Capable of driving up to 16 LED channels, enhancing user feedback mechanisms.
• Voltage - Supply: Operates within a wide range of 2V to 5.5V, offering flexibility in power supply options.
• Interface: SPI, ensuring fast and reliable data communication with host systems.
• Mounting Type: Surface Mount, ideal for compact and space-efficient designs.
• Package: 32QFN, providing a robust and reliable mechanical structure.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), ensuring the device is suitable for various environmental conditions.
• Compliance: REACH Unaffected and ROHS3 Compliant, meeting stringent environmental and safety standards.
• Proximity Detection: Not supported, focusing on direct touch sensing.
• DigiKey Programmable: Not Verified, indicating that the programmability status has not been confirmed by DigiKey.

AT42QT1085-MU Applications

The AT42QT1085-MU is ideal for applications requiring reliable and responsive touch interfaces. Its features make it particularly suitable for:

• Consumer Electronics: Devices such as smartphones, tablets, and smart home appliances can benefit from its touch sensing capabilities.
• Industrial Control Panels: Providing intuitive touch controls for machinery and equipment.
• Medical Devices: Touch interfaces for medical equipment where reliability and accuracy are paramount.
• Automotive Systems: Touch controls for in-vehicle infotainment systems and dashboard interfaces.
• Appliances: Touch controls for household appliances like washing machines, refrigerators, and ovens.

Conclusion of AT42QT1085-MU

The AT42QT1085-MU is a versatile and reliable touch sensor IC that offers a comprehensive solution for applications requiring up to 8 touch inputs and up to 16 LED driver channels. Its wide operating voltage range, surface-mount package, and SPI interface make it suitable for a variety of electronic designs. Despite being marked as obsolete, the AT42QT1085-MU remains a robust choice for developers seeking a proven touch sensing solution. Its compliance with REACH and ROHS3 standards ensures that it meets the highest environmental and safety requirements. For applications where direct touch sensing is preferred over proximity detection, the AT42QT1085-MU stands out as a reliable and efficient option.