LC717A00ARZ-NH

Overview

The LC717A00ARZ-NH is an eight-channel capacitance-to-digital converter LSI designed for electrostatic capacitive touch sensor applications. Manufactured by onsemi, this component operates within a supply voltage range of 2.6 V to 5.5 V and supports both I2C and SPI interface protocols. It is housed in a compact VCT-28 package measuring 3.5 mm x 3.5 mm x 0.8 mm. The device functions reliably across an extended temperature range from -40°C to +105°C. This integrated circuit converts capacitance changes into digital data for touch detection systems.

Feature Summary

• Eight-channel capacitance sensing capability for multi-touch or complex button arrays
• Dual interface support allowing flexible integration with I2C or SPI controllers
• Wide operating voltage range suitable for various power supply architectures
• Extended industrial temperature rating for robust environmental performance

Applications

• Electrostatic capacitive touch sensor interfaces
• Multi-button control panels requiring high channel density
• Industrial human-machine interface (HMI) touch controls

Procurement Notes

Verify the specific suffix NH against official datasheets to confirm lead-free status and packaging details. Confirm current availability as distribution channels may list this part as obsolete or limited stock. Ensure the VCT-28 package footprint matches the target PCB design before ordering. Check moisture sensitivity level requirements for reflow soldering processes.

Selection Notes

Select this component when eight dedicated sensing channels are required within a minimal footprint. The dual I2C/SPI interface offers flexibility for different microcontroller configurations. Ensure the application environment stays within the specified -40°C to +105°C operational range. Verify that the system power supply remains stable between 2.6 V and 5.5 V during operation.

Part Context

This part belongs to the LC717A00AR series of capacitance-to-digital converters. It shares core functionality with variants like the LC717A10AR but differs in specific package options and suffix designations. The series is engineered for low-power touch sensing applications in consumer and industrial electronics.

Replacement Considerations

Direct substitutes include other parts within the LC717A00 family. Verify pin compatibility and interface settings when replacing with similar onsemi capacitive touch ICs. Cross-reference package dimensions to ensure mechanical fit.