NXP  MPR121QR2  Capacitive Touch Sensor, I2C, 1.71 V, 3.6 V, QFN, 20 Pins, -40 °C

NXP MPR121QR2

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  • Manufacturer:
  • Newark Part No.: 24R9786
  • Manufacturer Part No MPR121QR2

Product Overview


The MPR121QR2 is a proximity capacitive Touch Sensor Controller. The MPR121 features an increased internal intelligence plus NXP's second generation capacitance detection engine. Some major enhancements include an increased electrode count, a hardware configurable I²C address, an expanded filtering system with debounce and completely independent electrodes with built-in auto-configuration. The device also features a 13th simulated electrode which represents the simultaneous charging of all the electrodes connected together. When used with a touch panel or touch screen array, the 13th simulated electrode allows a greater near proximity detection distance and an increased sensing area.
  • 29μA Typical run current at 16ms sampling interval
  • 3μA in scan stop mode current
  • 12 Electrodes/capacitance sensing inputs in which 8 are multifunctional for LED driving and GPIO
  • Integrated independent auto calibration for each electrode input
  • Auto configuration of charge current and charge time for each electrode input
  • Separate touch and release trip thresholds for each electrode
  • I²C interface, with IRQ interrupt output to advise electrode status changes

Applications

Computers & Computer Peripherals; Consumer Electronics; Security; Lighting
ESD sensitive device, take proper precaution while handling the device.
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Product Information


  • IC Interface Type I2C
  • Supply Voltage Min 1.71V
  • Supply Voltage Max 3.6V
  • Sensor Case Style QFN
  • No. of Pins 20Pins
  • Operating Temperature Min -40°C
  • Operating Temperature Max 85°C
  • Packaging Cut Tape
  • MSL MSL 3 - 168 hours
  • Supply Current 29 µA
  • Supply Voltage Range 1.71V to 3.6V
  • SVHC To Be Advised

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  • CAD CadSoft_EAGLE (2.93KB) EN
  • Application Note (208.97KB) EN
  • Availability

    Availability: No Longer Manufactured

     
     
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