IQS7222B201CSR

Sensor And Detector Interfaces Overview

The IQS7222B201CSR is a sensor fusion device from the ProxFusion series, designed for multi-button applications. It supports up to 20 mutual capacitive buttons or 8 self-capacitive buttons. The IC features an I2C interface with IRQ/RDY capabilities and configurable GPIOs. It operates within a supply voltage range of 1.71 V to 3.5 V and includes automatic tuning, noise filtering, and debounce functions. The device offers multiple power modes including Normal, Lower Power, and Ultra-Low Power for optimized consumption.

Sensor And Detector Interfaces Feature Summary

• Supports flexible configurations of mutual and self-capacitive sensing channels
• Integrates automated system power modes for optimal response versus consumption balance
• Includes built-in automatic tuning, noise filtering, and dual-direction trigger indication
• Features programmable memory for customizable user interfaces and one-time programmable settings

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 package variant required, as the IQS7222B family is available in WLCSP18 and QFN20 packages. Confirm that the ordering suffix CSR corresponds to the reel packaging format. Ensure compatibility with the host system's I2C voltage levels and check for any export documentation requirements associated with this component.

Sensor And Detector Interfaces Selection Notes

Select the IQS7222B201CSR when designing systems requiring up to 20 mutual capacitive inputs or 8 self-capacitive inputs. Consider the WLCSP18 package for space-constrained designs or QFN20 for standard layouts. Evaluate the power mode requirements against the application's need for wake-up proximity detection and sampling rates to ensure efficient energy usage.

Sensor And Detector Interfaces Part Context

This component belongs to the Azoteq IQS7222B ProxFusion series, which are sensor fusion devices for multi-button applications. The IQS7222B201CSR specifically denotes the version supporting 20 mutual capacitive channels. It shares core architecture with other variants like the IQS7222A and IQS7222C but differs in channel configuration and feature sets.

Sensor And Detector Interfaces Replacement Considerations

Direct replacements within the same family include IQS7222B202CSR, which offers similar functionality with potentially different current consumption characteristics. Verify pinout and register compatibility before substituting.