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CAP1214-1-EZK-TR

MCHPCAP1214-1-EZK-TR

Microchip Technology
Capacitive Touch Buttons, Slider 32-QFN (4x4)
Active2,760 in stock
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Overview

The CAP1214 is a versatile capacitive touch controller providing up to 14 sensor inputs and 11 integrated LED drivers. It features sophisticated proximity detection and signal processing algorithms to handle various touch conditions over an SMBus or I2C interface.

Why Choose This Part

This controller integrates 11 LED drivers, significantly reducing the bill of materials for backlit touch interfaces. It supports multiple power states including a 250uA sleep mode and features high-drive 24mA outputs for LEDs. The 32-QFN package and 3V to 3.6V operating range make it suitable for compact, battery-efficient designs.

Applications

Consumer Interface Panels
Ideal for household appliances and consumer electronics requiring a mix of touch buttons and sliders.
LCD Monitor Controls
Used for sleek, bezel-integrated menu navigation and power controls with backlit feedback.
Proximity Sensing
Can be configured to detect a hand approaching the device to wake up the system from deep sleep modes.
Notebook and Desktop PCs
Provides dedicated touch controls for volume, brightness, and media playback with integrated status LEDs.

Key Specifications

Type Buttons, Slider
Interface SMBus
Mounting Type Surface Mount
Package / Case 32-TFQFN Exposed Pad
Current - Supply 550uA
Number of Inputs Up to 14
Voltage - Supply 3V ~ 3.6V
LED Driver Channels 11
Proximity Detection Yes
Operating Temperature -40degC ~ 125degC
Supplier Device Package 32-QFN (4x4)

Getting Started

Designers can integrate the CAP1214 into systems using the standard SMBus or I2C protocol for register-based configuration. Evaluation often begins with the Microchip EVB-CAP1214 evaluation board to tune sensor sensitivity and proximity thresholds. Ensure proper ground plane design around the capacitive traces to minimize parasitic capacitance and noise.