QT1101-IS48G

Overview

The QT1101-IS48G is a QTouch sensor integrated circuit designed for capacitive touch sensing applications. It features up to 10 inputs and LED driver channels, housed in a compact 48-SSOP package. The device operates on a supply voltage ranging from 2.8 V to 5 V and supports an internal voltage reference. It utilizes a 2-wire touch panel interface and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Capacitive touch sensing capability with up to 10 dedicated input channels
• Integrated LED driver channels for visual feedback control
• Self-contained digital controller utilizing patented charge-transfer technology

Applications

• Consumer electronics touch interfaces
• Appliance control panels
• Industrial human-machine interfaces

Procurement Notes

Verify the manufacturer designation as Atmel or Microchip Technology, noting that Atmel was acquired by Microchip. Confirm the specific suffix IS48G corresponds to the 48-SSOP package variant. Ensure RoHS compliance documentation is available if required for your assembly process. Cross-reference the part number against official Microchip databases to confirm current production status and availability.

Selection Notes

Select this component when a solution supporting up to 10 keys with integrated LED driving is required. The 48-SSOP package suits space-constrained designs needing surface-mount installation. Consider the 2.8 V to 5 V supply range for compatibility with various logic levels. The wide operating temperature range makes it suitable for diverse environmental conditions.

Part Context

This part belongs to the QTouch family of sensor ICs, which utilize proprietary charge-transfer technology for robust touch detection. The QT1101 specifically targets applications requiring multiple keys and LED outputs. It represents a specialized analog-digital hybrid solution for user interface sensing.

Replacement Considerations

The AT42QT1110-MU is listed as a potential replacement option. Verify pinout compatibility and functional equivalence before substitution.