QT1106 WHEEL/SLIDER CHIP W/7KEYS

QT1106-ISG – Capacitive Touch Sensor IC with Wheel/Slider & 7 Keys – Microchip Technology

The QT1106-ISG from Microchip Technology is a versatile capacitive touch controller IC designed for intuitive user interfaces. This integrated circuit supports wheel/slider functions alongside up to seven independent keys, enabling responsive touch controls with proximity detection. PCX ensures genuine Microchip components with same-day shipping and dedicated technical support.

Key Features

• Multifunction Interface: Supports buttons, slider, and wheel touch configurations
• Proximity Detection: Senses approach before physical contact
• Flexible Inputs: Configurable for up to 7 capacitive touch channels
• Wide Voltage Range: 2.8V to 5V operation
• Low Power Consumption: Only 3.6mA supply current
• Industrial Temperature Range: -40°C to 85°C

Technical Details

This QTouch™ series IC features a 14-bit resolution SPI interface for precise touch response. Housed in a compact 32-QFN (5×5) surface-mount package, it integrates signal processing algorithms for noise immunity and drift compensation. Note: This part is marked obsolete by the manufacturer but remains available through PCX for legacy system support.

Typical Applications

• Industrial control panels
• Home appliance interfaces
• Automotive infotainment systems
• Medical equipment controls
• Consumer electronics touchpads

About Microchip Technology

Microchip Technology is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions. With over three decades of industry leadership, the company sets benchmarks for quality and innovation in embedded control systems.

Microchip’s components are renowned for their robustness in demanding environments, backed by comprehensive design resources and global manufacturing standards. Their capacitive touch portfolio, including the QTouch™ series, delivers proven reliability for human-machine interfaces.

About Capacitive Touch Sensor ICs

Capacitive touch sensors detect conductive objects like human fingers through electric field changes, replacing mechanical switches with durable, sealed interfaces. These ICs enable modern touch controls without moving parts, reducing wear and enabling sleek industrial designs.

Advanced variants like the QT1106-ISG incorporate specialized algorithms for environmental compensation, moisture rejection, and proximity sensing. They are fundamental in creating intuitive controls across consumer, automotive, and industrial applications where reliability and user experience are critical.

Packaging Options

Available in Tape & Reel (TR) packaging for automated assembly.

Frequently Asked Questions

Q: Does this IC support custom touchpad shapes?
A: Yes, the QT1106-ISG allows flexible electrode designs for circular wheels, linear sliders, or irregular buttons.

Q: Can it operate through protective overlays?
A: Absolutely. The chip detects touch through glass, plastic, or wood overlays up to 10mm thick.

Q: Is external calibration required?
A: No. Built-in auto-calibration compensates for environmental changes during operation.

Q: What’s the response time for touch detection?
A: Typical response is under 100ms, adjustable via SPI configuration.

Q: How does proximity detection enhance functionality?
A: It enables wake-on-approach features to conserve power in battery-operated devices.

Q: Can PCX provide design support for this obsolete part?
A: Yes. Our engineers offer schematic review and troubleshooting for legacy implementations.

Order today for fast delivery! Contact PCX for datasheet access and volume pricing.

Disclaimer: Product images are representational. Refer to datasheets for exact specifications.