Microchip Technology

QT111-D  

Sensor and Detector Interfaces

QT111-D Description

The QT111-D is a versatile and reliable proximity sensor IC designed by Microchip Technology, part of the QProx™ series. This sensor IC is specifically engineered for touch and proximity sensing applications, offering a single-channel solution in an 8-DIP package. The QT111-D operates within a supply voltage range of 2.5V to 5.5V and consumes a minimal supply current of 26µA, making it highly energy-efficient. It is designed for through-hole mounting, ensuring robust and secure integration into various electronic systems.

The QT111-D features a resolution of 14 bits, providing precise detection capabilities. It supports proximity detection, enabling it to sense the presence of objects without physical contact. This feature is particularly useful in applications requiring non-contact sensing, such as touchless interfaces and automated systems. The operating temperature range of 0°C to 70°C ensures that the QT111-D can perform reliably in a variety of environmental conditions.

QT111-D Features

• High Resolution: The QT111-D offers a resolution of 14 bits, providing highly accurate and precise sensing capabilities.
• Low Power Consumption: With a supply current of just 26µA, the QT111-D is an energy-efficient solution, ideal for battery-powered and low-power applications.
• Proximity Detection: The sensor supports proximity detection, allowing it to sense the presence of objects without direct contact, enhancing user experience and system reliability.
• Wide Operating Voltage Range: The QT111-D operates within a supply voltage range of 2.5V to 5.5V, making it compatible with a variety of power sources.
• Through-Hole Mounting: The through-hole mounting type ensures secure and robust integration into electronic systems.
• Single Channel Input: The QT111-D supports up to one input channel, simplifying design and reducing complexity.
• LED Driver Channels: The sensor also supports up to one LED driver channel, facilitating visual feedback in user interfaces.
• Compliance and Safety: The QT111-D is REACH unaffected and has a moisture sensitivity level (MSL) of 1 (unlimited), ensuring compliance with environmental and safety standards.

QT111-D Applications

The QT111-D is ideal for a wide range of applications where touch and proximity sensing are required. Some specific use cases include:

• Touch Interface Systems: The QT111-D can be used in touch-based user interfaces, such as touchpads, touchscreens, and touch buttons, providing a responsive and intuitive user experience.
• Automated Systems: In automated systems, the proximity detection feature of the QT111-D can be utilized for non-contact sensing, enhancing system efficiency and reliability.
• Consumer Electronics: The sensor IC can be integrated into various consumer electronics, such as smartphones, tablets, and home appliances, to provide touch and proximity sensing capabilities.
• Industrial Applications: The QT111-D can be employed in industrial settings for proximity sensing, enabling automated processes and improving operational efficiency.

Conclusion of QT111-D

The QT111-D is a highly capable sensor IC that offers precise touch and proximity sensing capabilities. Its low power consumption, high resolution, and wide operating voltage range make it an excellent choice for a variety of applications. The through-hole mounting type ensures robust integration, while the single channel input and LED driver channels simplify design and enhance functionality. Although the QT111-D is now obsolete, its unique features and advantages over similar models make it a reliable and efficient solution for touch and proximity sensing applications.

QT111-D Documents

Download datasheets and manufacturer documentation for QT111-D

Datasheets :

QT111(112,115)      

PCN Packaging :

Transfer to Microchip/Label/Pkg 5/Sep/2016      

HTML Datasheet :

QT111(112,115)      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH