MCHPAT42QT1010-TSHR
Overview
The AT42QT1010-TSHR is a single-channel capacitive touch controller designed for creating digital buttons and proximity sensors. It uses patented spread-spectrum charge-transfer technology to provide high noise immunity and reliable detection through non-conductive panels like plastic or glass. The device operates from 1.8V to 5.5V and outputs a simple active-high digital signal, eliminating the need for complex firmware integration.
Why Choose This Part
This IC features self-calibration and automatic drift compensation, which ensures the sensor remains responsive despite environmental changes or contaminant buildup. The HeartBeat output pulse allows a host microcontroller to verify the sensor is functional, while the spread-spectrum acquisition provides excellent EM compatibility.
Applications
Key Specifications
Getting Started
To use this sensor, connect a sense capacitor (typically 1nF to 100nF) and a sense electrode to the SNS pins. The output mode can be toggled between Fast mode for quick response or Low Power mode for battery efficiency by adjusting the SYNC pin configuration. Evaluation can be performed using the AT42QT1010-XPRO extension board compatible with the Microchip Xplained Pro platform.
AT42QT1010 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Package | Stock |
|---|---|---|
| AT42QT1010-TSHR (this part) | 6-23 | 62,727 |
| AT42QT1010 | 6-23 | 37,801 |
| AT42QT1010-MAHR | UFDFN-8 | 28,182 |
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