IQS7222B102QNR

Sensor And Detector Interfaces Overview

The IQS7222B102QNR is a capacitive touch sensor controller from the Azoteq ProxFusion series, designed for multi-channel input detection. It supports up to 20 mutual capacitance channels and 8 self-capacitance channels, enabling complex interface configurations such as buttons, sliders, and wheels. The device operates on an I2C interface with a supply voltage range of 1.71V to 3.5V. It features integrated proximity sensing capabilities and is housed in a 20-UFQFN package with exposed pads, suitable for surface-mount assembly.

Sensor And Detector Interfaces Feature Summary

• Supports simultaneous mutual and self-capacitive channel configurations for versatile user interface designs
• Integrates proximity detection functionality alongside standard touch inputs
• Utilizes I2C communication protocol for efficient data transfer with host processors

Sensor And Detector Interfaces Applications

• Consumer electronics requiring multi-button or slider interfaces
• Wearable devices utilizing proximity and wear-detection features
• Industrial control panels needing robust capacitive touch solutions

Sensor And Detector Interfaces Procurement Notes

Verify the specific suffix QNR against official Azoteq documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with the target I2C bus speed and voltage levels before integration. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Sensor And Detector Interfaces Selection Notes

Select this model when both mutual and self-capacitance channels are required within a single controller. Compare channel counts against other IQS7222 variants to ensure sufficient inputs for the design. Consider the 20-QFN package constraints for PCB layout and thermal management requirements during the schematic phase.

Sensor And Detector Interfaces Part Context

This component belongs to the IQS7222B family, which focuses on high-channel-count capacitive sensing. It differs from the IQS7222A and C series primarily in channel configuration options and package availability. The B-series variant typically offers distinct pinout arrangements optimized for larger touch arrays.

Sensor And Detector Interfaces Replacement Considerations

Direct substitutes include other IQS7222B variants with compatible pinouts. Verify that alternative part numbers support the same 20-mutual/8-self channel split. Check for any differences in operating voltage ranges or package dimensions before swapping.