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Product Detailed Parameters
- Description：IC TOUCH SENSOR, 16-KEYS, 24-WQF
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Buttons
- Proximity Detection：Yes
- Number of Inputs：Up to 16
- LED Driver Channels：Up to 16
- Interface：I2C
- Resolution：-
- Voltage - Supply：2.7V ~ 5.5V
- Current - Supply：7mA
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount, Wettable Flank
- Package / Case：24-WFQFN Exposed Pad
- Supplier Device Package：24-WQFN (4x4)
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The IS32SE5117-QWLA3-TR is a capacitance touch sensor controller manufactured by Lumissil Microsystems. It features 16 channels for capacitive touch input, utilizing shared GPIOs to facilitate interface connections. The device operates within a supply voltage range of 2.7 V to 5.5 V and supports I2C communication interfaces. It is housed in a QFN-24 package with dimensions of 4 mm x 4 mm. The component is designed for automotive applications, supporting an operating temperature range from -40°C to +105°C.
Feature Summary
- Supports 16-channel capacitive touch sensing with shared GPIO input configuration
- Integrates I2C interface for system communication
- Automotive-grade qualification ensuring reliability under extended temperature conditions
Applications
- Automotive interior touch control panels
- Vehicle door handle interfaces
- Center console button replacements
Procurement Notes
Verify the specific suffix QWLA3 against official Lumissil documentation to confirm package type and automotive grade status. Ensure compatibility with existing I2C bus configurations and check moisture sensitivity levels prior to assembly. Confirm that the 4mm x 4mm QFN-24 footprint matches the target PCB design constraints.
Selection Notes
Select this component when a dedicated 16-channel touch controller with automotive qualification is required. The shared GPIO feature simplifies routing compared to dedicated touch pins. Verify that the I2C speed requirements of the host processor align with the sensor's interface capabilities.
Part Context
This part belongs to the IS32SE5117 family of capacitance touch sensors. The QWLA3 suffix typically denotes the specific package variant and automotive reliability tier. It serves as a specialized input solution for vehicle human-machine interfaces, distinct from general-purpose microcontrollers or standard consumer touch ICs.
Replacement Considerations
Check for direct pin-to-pin equivalents within the IS32SE5117 series. Verify if alternative suffixes offer identical electrical characteristics but different packaging options. Cross-reference channel counts and interface types to ensure functional parity.
