MTCH105T-I/ML

Overview

The MTCH105T-I/ML is a capacitive touch and proximity controller from Microchip Technology, housed in a 16-lead QFN package measuring 4 mm x 4 mm. It features five sensor inputs with active guarding capability to suppress noise. The device operates on a supply voltage ranging from 2.05V to 3.6V and supports an industrial temperature range of -40°C to +85°C. Sensitivity and power modes are configurable via dedicated pins, while open-drain outputs provide simple digital detection signals for integration into embedded systems.

Feature Summary

• Capacitive proximity and touch detection system with high signal-to-noise ratio
• Multi-stage active noise suppression filters for reliable operation
• Smart scan scheduling and automatic environmental compensation
• Flexible low-power mode with brown-out protection

Applications

• Light switch activation
• Portable device enabler
• White goods and appliance control panels
• Display and keypad back-lighting activation

Procurement Notes

Verify the specific ordering suffix against official documentation to ensure correct packaging and temperature grade. Confirm that the component meets RoHS compliance requirements for your target market. Review the datasheet for moisture sensitivity levels and recommended soldering profiles prior to assembly.

Selection Notes

Select this component when five independent sensor channels are required alongside active guard functionality. Ensure the application environment falls within the specified operating voltage and temperature limits. Consider the physical dimensions of the 16-lead QFN package during PCB layout planning.

Part Context

This part belongs to the MTCH10x family, which includes variants with two, five, or eight channels. All members share similar core technologies such as active guarding and noise suppression algorithms. The MTCH105 specifically bridges the gap between basic dual-channel detectors and more complex eight-channel controllers.

Replacement Considerations

Direct substitutes include other members of the MTCH10x family, such as the MTCH102 or MTCH108, provided pin compatibility and channel counts align with design requirements. Verify that any alternative maintains the same package footprint and electrical characteristics.