NXP  MPR121QR2  Capacitive Touch Sensor, I2C, 1.71 V, 3.6 V, QFN, 20, -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 Specifications, Documents & More


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

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Availability: No Longer Manufactured

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