CAP1214-1-EZK-TR

Overview

The CAP1214-1-EZK-TR is a multiple channel capacitive touch sensor and LED driver manufactured by Microchip Technology. It features fourteen individual capacitive touch sensor inputs with programmable sensitivity and automatic recalibration, alongside eleven low-side LED drivers supporting full-on/off, variable rate blinking, dimness controls, and breathing effects. The device communicates via an SMBus 2.0 compliant interface and includes compensation circuitry for uniform touch sensitivity across varying external sensing pad capacitances. It operates in various power states, including Deep Sleep with 4.5uA quiescent current and Sleep mode with 250uA quiescent current while monitoring one button.

Feature Summary

• Integrates fourteen capacitive touch sensor inputs with automatic recalibration and compensation for variable sensing pads.
• Includes eleven low-side LED drivers capable of full-on/off, variable rate blinking, dimness controls, and breathing functions.
• Features an SMBus 2.0 compliant interface for changing operating parameters and block read/write functions.
• Supports lid closure detection, proximity detection, slider acceleration, and position detection.

Applications

• Consumer Electronics
• Desktop and Notebook PCs
• LCD Monitors

Procurement Notes

Verify the component authenticity by checking the manufacturer's marking against official documentation. Confirm the package type matches the specified 32-pin QFN dimensions. Ensure the ordering suffix aligns with the required reel size and RoHS compliance standards before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring multiple independent touch inputs combined with integrated LED control capabilities. Consider its low power consumption modes for battery-operated applications. Evaluate the need for SMBus communication and the specific number of channels required to optimize system complexity and cost.

Part Context

The CAP1214 series represents a solution for integrating complex user interfaces into compact electronic devices. It combines touch sensing and LED driving functionalities into a single chip, reducing the overall component count and simplifying the design process for manufacturers developing interactive consumer electronics and computing peripherals.

Replacement Considerations

Consult official Microchip documentation for confirmed substitute part numbers. Verify compatibility regarding pinout, electrical specifications, and software register configurations before implementing any alternative components in existing designs.

FAQ

What is the quiescent current consumption in Deep Sleep mode?

The CAP1214 consumes 4.5uA of quiescent current in Deep Sleep mode.

How many LED drivers are integrated into the CAP1214?

The device integrates eleven low-side LED drivers that support various control modes such as blinking, dimming, and breathing.

Does the CAP1214 support slider functionality?

Yes, the capacitive touch sensor inputs support slider acceleration and position detection features.