IQS7222C101CSR

Overview

The IQS7222C101CSR is a capacitance-to-digital converter controller from the Azoteq ProxFusion series, designed for touch and proximity sensing applications. It features a WLCSP-18 package with dimensions of 3 mm x 3 mm x 0.5 mm. The device supports an I2C interface and operates within a supply voltage range of 1.71 V to 3.5 V. It functions as a 1-channel mutual capacitive sensor controller, also supporting inductive touch and proximity sensing capabilities. The component is rated for industrial temperatures between -40°C and +85°C.

Feature Summary

• Integrates ProxFusion technology for combined capacitive and inductive sensing
• Supports mutual capacitive sensing configurations
• Enables inductive touch and proximity detection
• Utilizes standard I2C communication protocol

Applications

• Inductive touch interfaces
• Proximity sensing modules
• Capacitive button controllers

Procurement Notes

Verify the specific suffix CSR against official datasheets to confirm packaging details such as reel or cut tape specifications. Confirm RoHS compliance status through manufacturer documentation before integration. Ensure the I2C address configuration matches system requirements. Validate that the WLCSP-18 footprint aligns with PCB design constraints.

Selection Notes

Select this model when a single-channel mutual capacitive solution with inductive support is required. Compare channel counts and package sizes against alternatives like the IQS7222A or B series if higher channel density is needed. Verify operating voltage compatibility with the target power supply rail.

Part Context

This component belongs to the IQS7222C family, which focuses on compact sensor integration. It shares the ProxFusion branding with other Azoteq sensors but differs in channel count and package type. The C-series typically targets space-constrained designs requiring mixed-signal sensing capabilities.

Replacement Considerations

Direct substitutes include other IQS7222 variants such as IQS7222A or IQS7222B models, provided pinout and channel requirements are compatible. Cross-reference package dimensions and electrical characteristics carefully.