IQS7222A001QNR

Overview

The IQS7222A001QNR is a ProxFusion sensor fusion controller featuring 12 sensing channels with I2C communication. It supports self-capacitive, mutual-capacitive, inductive, and Hall-effect sensors. The device operates on a supply voltage of 1.71 V to 3.6 V and includes an internal 14 MHz CPU. It offers ultra-low-power wake-up capabilities and configurable outputs for touch, proximity, and slider gestures.

Feature Summary

• Sensor fusion capability integrating capacitive, inductive, and Hall-effect technologies
• Ultra-low power consumption with dedicated wake-up touch sensor functionality
• Built-in automatic tuning and noise filtering for stable operation
• Configurable I2C interface supporting event and streaming modes

Applications

• Capacitive sliders and buttons for user interfaces
• Wear detection systems for wearable electronics
• Hall-effect dock detection mechanisms
• Inductive force or squeeze controls

Procurement Notes

Verify the QFN20 package marking option (IQS7222AzzzQNR) against the specific design requirements. Confirm that the ordering suffix does not alter the functional specifications unless explicitly stated in the manufacturer's documentation. Ensure compliance with moisture sensitivity levels and reflow specifications during assembly.

Selection Notes

Select this component when multi-modal sensing is required within a single IC footprint. The QFN20 package provides nine external sensor pad connections, suitable for complex UI designs. Evaluate the current consumption profiles across different power modes to ensure compatibility with battery-operated constraints.

Part Context

This part belongs to the Azoteq IQ Switch ProxFusion series, designed for low-power human-machine interfaces. It integrates multiple sensing engines to reduce system complexity compared to using separate discrete sensors for touch, proximity, and magnetic detection.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.