Capacitive Touch Controllers & Proximity Sensing Solutions
  • SX9500
    • Ultra Low Power, Capacitive Four (4) - Channel Proximity/Button
  • SX8661
    • Low Power, Capacitive Button Touch and Proximity Controller (8 sensors) with LED Drivers and Analog Output
  • SX8645
    • Ultra Low Power, Capacitive Button and Wheel Touch Controller (12 sensors) with Enhanced LED Drivers
  • SX8644
    • Ultra Low Power, Capacitive Button and Slider Touch Controller (12 sensors) with Enhanced LED Drivers
  • SX8636
    • Low Power, Capacitive Button Touch Controller (8 sensors) with Enhanced LED Drivers and Proximity Sensing
  • SX8634
    • Low Power, Capacitive Button and Slider Touch Controller (12 sensors) with Enhanced LED Drivers and Proximity Sensing
Semtech SX9300

Semtech SX9300

Smart Proximity - Ultra Low Power, Dual Channel SAR Compliant Solution

The SX9300 is the world’s first dual channel capacitive Specific Absorption Rate (SAR) controller that accurately discriminates between an inanimate object and human body proximity. The resulting detection is used in portable electronic devices to reduce and control radio-frequency (RF) emission power in the presence of a human body, enabling significant performance advantages for manufacturers of electronic devices with EMF radiation sources to meet stringent emission regulations' criteria and Specific Absorption Rate (SAR) standards.

Features


  • 2.7 – 5.5V Input Supply Voltage
  • Dual SAR Capacitive Sensor Inputs
    • On-Chip SAR Engine For Body versus Inanimate Object
    • Detection
    • Stable Proximity Sensing With Temperature
    • 20mm detection distance
    • Capacitance Offset Compensation to 30pF
  • Active Sensor Guarding
  • Automatic Calibration
  • Ultra Low Power Consumption:
    • Active Mode: 170 uA
    • Doze Mode: 18 uA
    • Sleep Mode: 2.5 uA
  • 400KHz I2C Serial Interface
    • Four programmable I2C Sub-Addresses
    • Input Levels Compatible with 1.8V Host Processors
  • Open Drain NIRQ Interrupt pin
  • Three (3) Reset Sources: POR, NRST pin, Soft Reset
  • -40°C to +85°C Operation
  • Compact Size: 3 x 3mm Thin QFN package
  • Pb & Halogen Free, RoHS/WEEE compliant

Applications


  • SAR Compliant Systems
  • Notebooks
  • Tablets
  • Mobile Phones
  • Mobile Hot Spots

Packaging

  • QFN-20

Order Codes

  • SX9300IULTRT: Lead-Free, halogen-free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only