onsemi

LC717A30UJ-AH

LC717A30UJ-AH Description

The LC717A30UJ-AH from onsemi is an 8-channel capacitive touch sensor interface designed for surface-mount applications. Operating within a 2.6V to 5.5V supply range and consuming 6.5mA of current, this IC is optimized for low-power touch-sensitive systems. It communicates via I2C, enabling seamless integration with microcontrollers and other digital systems. The device is packaged in a Tape & Reel (TR) format, making it suitable for automated assembly processes. Although marked as Obsolete, it remains a viable solution for legacy designs requiring reliable touch detection. Compliant with ROHS3 and REACH Unaffected standards, it meets environmental and safety regulations.

LC717A30UJ-AH Features

• 8-Channel Input: Supports multi-touch applications with up to eight independent capacitive sensing inputs.
• Wide Voltage Range (2.6V–5.5V): Compatible with various power supplies, including battery-operated systems.
• I2C Interface: Simplifies communication with host controllers, reducing firmware complexity.
• Low Power Consumption (6.5mA): Ideal for energy-sensitive designs.
• Surface-Mount Package (MSL 3): Suitable for high-volume PCB assembly with a 168-hour moisture sensitivity rating.
• No Proximity Detection: Focused purely on touch sensing, reducing unnecessary overhead for dedicated touch applications.

LC717A30UJ-AH Applications

This sensor is particularly suited for:

• Consumer Electronics: Touch buttons in appliances, remote controls, and smart home devices.
• Industrial Control Panels: Robust touch interfaces for machinery and HMI systems.
• Automotive Accessories: Non-mechanical touch inputs for infotainment or dashboard controls.
• Legacy Product Maintenance: Replacing older touch-sensing solutions without redesigning entire systems.

Conclusion of LC717A30UJ-AH

The LC717A30UJ-AH provides a straightforward, efficient solution for capacitive touch sensing with its 8-channel input, I2C interface, and low-power operation. While obsolete, its reliability and compliance with modern standards make it a practical choice for specific applications requiring proven performance. Engineers working on legacy systems or cost-sensitive designs will find this IC a dependable option for integrating touch functionality.