Microchip Technology

AT42QT1050-MMH  

Sensor and Detector Interfaces

AT42QT1050-MMH Description

The AT42QT1050-MMH is a highly advanced touch sensor IC designed by Microchip Technology, part of the renowned QTouch™ series. This IC is specifically engineered to provide robust and reliable touch sensing capabilities for up to five buttons. It operates within a wide voltage range of 1.8V to 5.5V, ensuring compatibility with a variety of power supply configurations. The AT42QT1050-MMH features an I2C interface, facilitating seamless communication with microcontrollers and other system components.

This touch sensor IC is housed in a 20VQFN package, which is ideal for surface mount applications. It is RoHS3 compliant and REACH unaffected, adhering to stringent environmental and safety standards. The AT42QT1050-MMH also boasts proximity detection capabilities, enhancing its functionality and versatility. With a moisture sensitivity level (MSL) of 3 (168 hours), it is well-suited for use in various environmental conditions.

AT42QT1050-MMH Features

• Proximity Detection: The AT42QT1050-MMH includes proximity detection, allowing it to sense the presence of a finger or object before actual contact. This feature enhances user experience and can be particularly useful in applications requiring non-contact operation.
• Wide Operating Voltage Range: The IC operates within a voltage range of 1.8V to 5.5V, providing flexibility in power supply options and ensuring compatibility with different system designs.
• Surface Mount Packaging: The 20VQFN package is designed for surface mount technology (SMT), making it suitable for high-density and automated manufacturing processes.
• Environmental Compliance: The AT42QT1050-MMH is RoHS3 compliant and REACH unaffected, ensuring it meets the latest environmental and safety regulations.
• Moisture Sensitivity Level: With an MSL of 3 (168 hours), the IC is resistant to moisture, making it suitable for applications in humid or damp environments.
• I2C Interface: The I2C interface allows for efficient and reliable communication with other system components, simplifying integration into existing systems.
• Up to Five Inputs: The AT42QT1050-MMH supports up to five touch inputs, providing ample flexibility for multi-button applications.

AT42QT1050-MMH Applications

The AT42QT1050-MMH is ideal for a wide range of applications where reliable touch sensing and proximity detection are required. Some specific use cases include:

• Consumer Electronics: In devices such as smartphones, tablets, and remote controls, the AT42QT1050-MMH can provide intuitive touch and proximity-based user interfaces.
• Home Appliances: For appliances like washing machines, refrigerators, and ovens, the IC can enhance user interaction with touch-sensitive controls and proximity sensing for energy-saving features.
• Automotive: In automotive applications, the AT42QT1050-MMH can be used for touch-sensitive controls on dashboards, infotainment systems, and other in-vehicle interfaces.
• Medical Devices: For medical equipment, the IC can provide touch and proximity sensing for user interfaces, ensuring ease of use and reliability in critical applications.

Conclusion of AT42QT1050-MMH

The AT42QT1050-MMH from Microchip Technology is a versatile and reliable touch sensor IC that offers a wide range of features and benefits. Its proximity detection, wide operating voltage range, and surface mount packaging make it an ideal choice for various applications in consumer electronics, home appliances, automotive, and medical devices. The IC's environmental compliance and moisture sensitivity level further enhance its suitability for diverse operating conditions. With its robust performance and advanced capabilities, the AT42QT1050-MMH stands out as a superior choice for touch sensing solutions.

AT42QT1050-MMH Documents

Download datasheets and manufacturer documentation for AT42QT1050-MMH

PCN Assembly/Origin :

Assembly Site 15/Feb/2021      

Datasheets :

AT42QT1050 Preliminary      

PCN Packaging :

Boxes 07/Dec/2016       MBB/Label Chgs 16/Nov/2018      

Design Resources :

AT42QT1050 Development Tool Selector      

HTML Datasheet :

AT42QT1050 Preliminary      

PCN Design/Specification :

Marking Chgs 11/Jul/2017       Cancellation 02/Feb/2022      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH