QT401-ISSG Integrated Circuits (ICs)

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Interface - Sensor, Capacitive Touch

QT401-ISSG application field and working principle
The QT401-ISSG series of modules are designed based on mutual capacitance technology, adopting the international mainstream integrated solution, which has the characteristics of high sensitivity and high linearity. The series of modules can be used in various capacitive touch key products, such as industrial control, white goods, instrumentation, household appliances, lighting, computers and other products. At the same time, it can also be applied to human-computer interaction areas such as kiosk industry and vending machine industry with thickness and ergonomic requirements.The QT401-ISSG series of modules are designed using an innovative and optimized integrated solution, which can sense the electrostatic induction of multiple channels at the same time and accurately calculate the inductive position. The product is suitable for a variety of sizes, configurations and touch shapes, supporting custom design, and can also be integrated into any existing touch panel design, supporting a variety of touch points and touch pads.The key feature of the QT401-ISSG series is its high sensitivity. When the human finger touches the surface of the touch panel, the surface can sense the interference current of the finger, and the interference current between the lines can be used to accurately identify the position at which the finger is pressed. The sensitivity can reach 7.5mm sensing radius, that is to say, as long as the finger is close to the surface of the touch panel, even if there is a certain distance, it can be detected.The QT401-ISSG series is very accurate in terms of linearity. It can accurately determine the position of touch points of different sizes, ensuring the accuracy of localization and accuracy. At the same time, due to its extremely low scanning power, it has extremely low self-heating due to the small detectable force.The QT401-ISSG series supports various design methods, and its relative position tracking mode can keep the touch point unchanged even if the size of the touch panel changes. Its adjustable sensitivity function can carry out different adjustment schemes according to different products, and at the same time, the protective surface can be applied according to environmental conditions and user requirements.In addition, the continuous scan sampling of QT401-ISSG series is 126 points per second, which is close to the real-time response of human fingers. Intelligent gesture recognition module can also accurately identify various gestures, such as hand draw, line, circle, character and number.In summary, the QT401-ISSG series is a product with high sensitivity and high linear accuracy. Through wide application and fine tuning, it meets the product requirements of different sizes, shapes and secondary design, and can also be used for multi-point digital products with intuitive operation and interactive products with gesture recognition.

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