CAP1296-1-SL-TR

Overview

The CAP1296-1-SL-TR is a six-channel capacitive touch sensor controller manufactured by Microchip Technology. It features programmable sensitivity, automatic recalibration for parasitic capacitance, and proximity detection with an optional signal guard. The device supports SMBus and I2C communication interfaces and operates within a supply voltage range of 3.0V to 5.5V. It offers multiple power states including Active, Standby, Combo, and Deep Sleep, with the latter drawing a typical current of 5µA. The component is housed in a 10-pin 3mm x 3mm DFN package and is rated for operation from -40°C to 125°C.

Feature Summary

• Six individual capacitive touch sensor inputs with programmable sensitivity and automatic recalibration capabilities.
• Integrated proximity detection functionality supported by a signal guard output to reduce noise sensitivity and isolate antennas.
• Multiple pattern touch recognition allowing simultaneous button detection with interrupt generation.
• Low power operation featuring Deep Sleep mode with 5µA quiescent current and support for SMBus/I2C communication.

Applications

• Desktop and Notebook PCs
• LCD Monitors
• Consumer Electronics
• Appliances

Procurement Notes

Verify the specific ordering suffix '-SL-TR' against official documentation to confirm tape and reel packaging requirements. Ensure compatibility with host controller voltage levels, as digital pins are 5V tolerant but require pull-up resistors. Confirm RoHS compliance status and moisture sensitivity level (MSL 3) prior to assembly planning.

Selection Notes

Select this component when a six-channel solution with integrated proximity detection is required. Consider the Combo state capability if simultaneous button and proximity sensing is needed. Evaluate power consumption requirements across Active, Standby, and Deep Sleep modes based on system duty cycles and sampling configurations.

Part Context

The CAP1296 belongs to the CAP12XX series of capacitive touch controllers from Microchip Technology. This series expands upon previous RightTouch products, offering various slider, button, and proximity functions in compact packages. The CAP1296 specifically provides six channels, distinguishing it from other family members like the CAP1208 or CAP1298 which offer eight channels.

Replacement Considerations

Public confirmed substitute part numbers: None identified in verified source material.