QT113-IS

Overview

The QT113H-IS is a single-channel capacitive touch and proximity sensor IC from Microchip Technology's QProx series. It operates on a single supply voltage ranging from 2.5V to 5.5V with a typical supply current of 600µA. The device features a 14-bit resolution and provides an active-high output signal. It is housed in an 8-SOIC package (0.154 inch width) designed for surface mount installation. The component supports a continuous self-calibration function and includes a HeartBeat health indicator. It functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Projects a proximity sensing field through air and various dielectric materials such as glass, plastic, and wood.
• Performs continuous automatic calibration throughout the device's operational life without requiring manual adjustments.
• Converts small metal-bearing objects into intrinsic sensors responsive to proximity or touch inputs.

Applications

• Elevator control buttons
• Appliance user interfaces
• Security system access points

Procurement Notes

Verify component authenticity and datasheet alignment due to discontinued status. Confirm RoHS compliance requirements as the specific part may not meet current standards. Validate package dimensions against PCB footprint specifications before integration. Check for authorized distribution channels given end-of-life classification.

Selection Notes

Select this component for applications requiring simple, low-power touch detection without complex microcontroller interfaces. Ensure the design accommodates the 8-SOIC package constraints. Verify that the 600µA current consumption fits the system power budget. Consider the active-high output logic level compatibility with downstream circuitry.

Part Context

This part belongs to the QProx family of charge-transfer touch sensors manufactured by Microchip Technology. It serves as a standalone solution for detecting human interaction with surfaces. The IS suffix indicates the specific package variant and output configuration within the broader QT113 product line.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative single-channel capacitive sensors from the manufacturer if direct replacement is required.