KITMPR03XEVM

• Product introduction

KITMPR03XEVMtouchsensor

The MPR03X is an I2C interface smart capacitive touch sensor controller ideal for two-electrode (interrupt function) or three-electrode (interrupt function disabled) applications. Thanks to its increased sensitivity and many features, the MPR03X can be adapted to a wide range of applications.

Since there is no chip select line, devices using the I2C protocol require a separate address. Therefore, in order to use two MPR03x devices in the same system, each part number can be assigned a different I2C address, MPR031 and MPR032. In this way, one of the devices can implement 4-6 electrodes in the final system based on the same I2C bus without the need for additional communication lines or dedicated hardware.

characteristic

• 8 μA average operating current
• Compact 2 mm x 2 mm x 0.65 mm 8-lead UDFN package
• Supports up to 3 touch buttons
• Only one external passive component is required
• Smart touch button detection function
• 4 uA maximum shutdown current
• 1.71V to 2.75V operation
• Threshold-based, hysteresis touch detection
• I² C interface with optional IRQ interrupt
• The combination of MPR031+MPR032 allows the system to accommodate up to 6 electrodes
• -40°C to +85°C operating temperature range