IS32SE5118-QWLA3-TR

Overview

The IS32SE5118-QWLA3-TR is an automotive-grade capacitive touch sensor controller manufactured by Lumissil Microsystems. It supports up to 16 channels with input through shared GPIOs, housed in a WQFN-16 package measuring 4mm x 4mm. The device operates on a supply voltage range of 2.7V to 5.5V and features an I2C interface for communication. It is qualified under AEC-Q100 standards, ensuring reliability for automotive applications.

Feature Summary

• Automotive-grade capacitive touch sensing with support for multiple channels
• Integrated shared GPIO functionality for flexible input configuration
• I2C digital interface for system connectivity
• AEC-Q100 qualification for automotive environment compliance

Applications

• Automotive interior touch controls
• In-vehicle infotainment systems
• Dashboard switch panels
• Center console interfaces

Procurement Notes

Verify the specific suffix 'QWLA3' against the manufacturer's official datasheet to confirm package type and tape-and-reel specifications. Ensure that the procurement channel provides valid traceability documentation required for automotive component sourcing. Cross-reference the part number with the latest Lumissil Microsystems product change notices to avoid obsolete or superseded variants during acquisition.

Selection Notes

Select this component when designing automotive interfaces requiring robust capacitive touch detection within strict temperature ranges. The shared GPIO architecture offers design flexibility for button layouts. Confirm that the target application board supports the required I2C bus speeds and voltage levels compatible with the 2.7V to 5.5V operating range specified for this controller.

Part Context

This part belongs to the IS32SE series of automotive capacitive touch sensors from Lumissil Microsystems. It is designed specifically for high-reliability environments, distinguishing itself from consumer-grade counterparts through its AEC-Q100 certification. The series typically includes variants with different channel counts and package options to suit various automotive control panel requirements.

Replacement Considerations

Direct substitutes include other AEC-Q100 qualified capacitive touch controllers from Lumissil such as the IS32SE5117B-QWLCA3-TR, provided the channel count and package dimensions are compatible. Verify pin-to-pin compatibility and software register mapping before substitution.