MTCH9010-I/REB

Overview

The MTCH9010-I/REB is a dedicated liquid detection controller from Microchip Technology, designed for capacitive and conductive sensing applications. It features a single input/output channel and operates within a supply voltage range of 1.8 V to 5.5 V. The device supports serial interface communication via USART and GPIO configurations. It functions reliably in temperatures ranging from -40°C to +85°C. Packaged in a compact 3 mm x 3 mm x 0.9 mm VQFN-20 format with SMD/SMT termination, it ensures low power consumption with average current draw below 1 µA in sleep mode.

Feature Summary

• Supports both capacitive and conductive liquid sensing technologies
• Configurable output options including USART and GPIO interfaces
• Optimized for stable operation in wet and electrically noisy environments

Applications

• Liquid level detection in industrial systems
• Water presence monitoring in medical devices
• Leak detection in automotive or consumer electronics

Procurement Notes

Verify the specific ordering suffix REB corresponds to the tape and reel packaging configuration required for automated assembly processes. Confirm that the industrial temperature grade (-40°C to +85°C) aligns with the operational environment specifications. Ensure compatibility with the host system's voltage levels and serial communication protocols before integration.

Selection Notes

Select this component when a dedicated solution for detecting liquid presence via capacitive or conductive methods is required. It is suitable for designs needing minimal firmware overhead compared to multi-channel touch controllers. Consider the single-channel limitation if multiple independent sensing zones are necessary, in which case other series members may be more appropriate.

Part Context

This part belongs to the MTCH family of capacitance touch sensor ICs from Microchip Technology. While other models in the series like the MTCH10xx focus on multi-key touch interfaces, the MTCH9010 is specialized specifically for liquid detection. It shares the family's emphasis on high noise immunity and ease of integration using tools like EasyTune.

Replacement Considerations

Direct functional substitutes within the same liquid detection category are not explicitly listed in available documentation. Designers may evaluate other MTCH series members for general touch control but must verify specific liquid sensing capabilities separately.