QT113H-ISG

Overview

The QT113H-ISG is a single-channel capacitive touch and proximity sensor integrated circuit from Microchip Technology's QProx series. It operates within a supply voltage range of 2.5V to 5.5V and draws a typical supply current of 600µA. The device features a 14-bit resolution for sensing accuracy. It is housed in an 8-SOIC package with a width of 3.90mm, designed for surface-mount installation. The component supports button input types and includes proximity detection capabilities. It functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates capacitive touch sensing and proximity detection in a single channel
• Provides high-resolution 14-bit sensing data for accurate user interaction
• Supports low-power operation suitable for battery-constrained applications

Applications

• Capacitive touch button interfaces for consumer electronics
• Proximity sensing modules for smart home devices
• Human-machine interface controls in industrial equipment

Procurement Notes

Verify the specific suffix ISG against official Microchip documentation to confirm pinout and electrical characteristics, as suffixes can indicate variations in packaging or temperature ratings. Confirm end-of-life status and availability through authorized distributors, as this component may be discontinued. Ensure compliance with RoHS directives if required by your application, noting that some variants may not meet current standards.

Selection Notes

Select the QT113H-ISG when a single-channel solution combining touch and proximity sensing is required. Consider the 8-SOIC package constraints for PCB layout. Evaluate the 600µA supply current against system power budgets. Compare against other QProx family members if multiple channels or different interface options are needed. Verify operating temperature requirements match the -40°C to +85°C range.

Part Context

The QT113H-ISG belongs to the QProx family of capacitive sensing ICs from Microchip Technology. This series is designed for reliable touch and proximity detection in various electronic devices. The part number indicates a specific variant within the broader QProx lineup, distinguished by its channel count, package type, and operational specifications.

Replacement Considerations

Check Microchip's official obsolescence notices for recommended replacements. Cross-reference with other QProx series parts like the QT113H-SSG for potential pin-compatible alternatives. Verify functional equivalence before substitution.