IQS7222B202QFR

Sensor And Detector Interfaces Overview

The IQS7222B202QFR is a sensor fusion device from the ProxFusion series, designed for multi-button applications. It features an I2C interface and configurable GPIOs with low power options. The IC supports up to 20 mutual capacitive buttons or 8 self-capacitance buttons. Operating voltage ranges from 1.71 V to 3.5 V, with a maximum supply of 3.5 V and minimum of 1.71 V. It operates within a temperature range of -40°C to +85°C. The component utilizes a QFN20 package (3x3 mm) with SMD/SMT installation style.

Sensor And Detector Interfaces Feature Summary

• Supports flexible configuration of up to 20 mutual capacitive buttons or 8 self-capacitance buttons.
• Includes built-in automatic tuning, noise filtering, debounce, hysteresis, and dual-direction trigger indication.
• Features automated system power modes for optimal response versus consumption trade-offs.
• Enables one-time programmable settings for custom power-on configuration and auto-run capabilities.

Sensor And Detector Interfaces Applications

• Remote Control User Interface
• Home Automation Device User Interface
• Wireless Speaker Controls

Sensor And Detector Interfaces Procurement Notes

Verify the specific ordering suffix 'QFR' to confirm the QFN20 package type and marking option. Ensure compatibility with the required I2C communication speed and check that the operating voltage aligns with the 1.71 V to 3.5 V specification. Confirm environmental ratings match the -40°C to +85°C operational range for your intended deployment.

Sensor And Detector Interfaces Selection Notes

Select this model when a high channel count for mutual capacitance sensing is required in a compact form factor. The QFN20 package provides 9 external sensor pad connections. Consider the IQS7222B201 variant if slightly different current consumption characteristics are acceptable, or the WLCSP18 version if space constraints necessitate a smaller footprint.

Sensor And Detector Interfaces Part Context

This component belongs to the Azoteq IQ Switch ProxFusion series, specifically the IQS7222B family. It is distinct from the IQS7222A and IQS7222C variants which offer different channel counts and package options. The IQS7222B202QFR is part of the second generation of this sensor fusion technology, focusing on enhanced proximity wake-up functions.

Sensor And Detector Interfaces Replacement Considerations

The IQS7222B201QFR is a confirmed substitute within the same family, offering similar functionality with potentially different electrical characteristics. Other models like the IQS7222D102QFR provide fewer channels but may suit simpler applications.