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CY8CMBR3116-LQXIT

IFXCY8CMBR3116-LQXIT

Infineon Technologies
Touch Screen Controllers Capsense Express
4,217 in stock

Overview

The CY8CMBR3116-LQXIT is a register-configurable CapSense Express controller designed for capacitive touch sensing without the need for firmware development. It supports up to 16 capacitive touch inputs and includes an integrated SmartSense auto-tuning algorithm to maintain high sensitivity and reliability across varying environmental conditions. This controller features low power consumption, operating down to 1.71V, and includes specialized support for proximity sensing and liquid tolerance.

Why Choose This Part

This controller eliminates the complexity of capacitive sensing firmware development by using a fixed-function, register-configurable architecture. It delivers superior performance with a signal-to-noise ratio (SNR) greater than 100:1 and 0.1 pF sensitivity, ensuring reliable operation even in noisy environments. The device simplifies hardware design through automatic tuning and built-in features like Flanking Sensor Suppression (FSS) to prevent false triggers.

Applications

White Goods Control Panels
Utilizes liquid tolerance and SmartSense tuning to provide reliable touch interfaces for kitchen appliances like washing machines and dishwashers.
Industrial Keypads
Replaces mechanical switches with durable, wear-resistant capacitive buttons that can be configured for up to 16 distinct inputs.
Proximity-Activated Lighting
Leverages the Look-for-Proximity mode to wake systems or trigger lighting when a hand approaches the device surface.
Consumer Electronics HMI
Provides a sleek user interface for smart home devices and audio equipment with integrated LED drivers for visual feedback.

Key Specifications

Type Buttons
Interface I2C
Mounting Type Surface Mount
Package / Case 24-UFQFN Exposed Pad
Number of Inputs Up to 16
Voltage - Supply 1.8V ~ 5.5V
LED Driver Channels Up to 8
Proximity Detection Yes
Operating Temperature -40degC ~ 85degC
Supplier Device Package 24-QFN (4x4)

Getting Started

Engineers can configure the device using the EZ-Click Customizer tool, which generates a configuration file that can be loaded via the I2C interface. For rapid prototyping, the CY8CKIT-044 PSoC 4 M-Series Pioneer Kit or the specialized CY8CKIT-145-40XX PSoC 4000S CapSense Prototyping Kit can serve as a reference. The device requires no code; all parameters are set by writing to the internal registers over I2C.

CY8CMBR3116 Family

Also available as: CY8CMBR3116-LQXI

Also Consider

CAP1188 MCHPMicrochip Technology - An 8-channel capacitive touch controller that also offers LED drivers and I2C/SPI communication options.