IS32SE5120-QWLA3-TR

Overview

The IS32SE5120-QWLA3-TR is an automotive-grade capacitive touch sensor controller manufactured by Lumissil Microsystems. It features 16 channels for capacitive touch input, utilizing shared GPIOs to minimize pin count. The device operates on a supply voltage range of 2.7 V to 5.5 V and supports I2C communication interfaces. It is housed in a compact WQFN-24 package measuring 4 mm x 4 mm with a height of 0.75 mm. The component is qualified for automotive applications and functions reliably within an extended temperature range from -40°C to +125°C.

Feature Summary

• Automotive-grade qualification ensuring reliability in vehicle environments
• Capacitive touch sensing with 16 dedicated input channels
• Shared GPIO architecture for efficient pin utilization
• I2C interface for straightforward system integration

Applications

• Automotive infotainment systems
• Vehicle door handle controls
• Center console touch interfaces
• Climate control panels

Procurement Notes

Verify the specific suffix QWLCA3 against the official Lumissil datasheet to confirm package type and tape-and-reel specifications. Ensure the ordering part number matches the exact automotive grade requirements. Cross-reference the manufacturer's latest documentation to validate RoHS compliance status and any recent design changes before finalizing procurement orders.

Selection Notes

Select this component when designing automotive touch interfaces requiring high channel density in a small footprint. The 16-channel capacity suits complex control panels. Verify that the host microcontroller supports the required I2C speed. Confirm that the operating voltage aligns with the system's power rail between 2.7 V and 5.5 V.

Part Context

This part belongs to the IS32SE series of capacitive touch controllers designed specifically for automotive electronics. It complements other Lumissil sensors by providing robust touch detection capabilities. The series is engineered to meet strict automotive standards for durability and performance under varying environmental conditions.

Replacement Considerations

Check for direct substitutes within the IS32SE family with compatible pinouts. Verify if alternative manufacturers offer automotive-qualified touch controllers with similar channel counts and I2C compatibility. Ensure any replacement maintains the same package dimensions and thermal characteristics.