Features
• 2.7-3.6V Input Supply Voltage
• Up to 5 High Performance Capacitive Sensors Inputs
ΠPatented On-Chip Smart Human Engine
ΠCapacitance Resolution down to 1aF
ΠCapacitance Offset Compensation up to 300pF
ΠMultiple thresholds per sensing input
ΠSeparate configurations per input
• Automatic Calibration
• Up to 2 LED Drivers
ΠUp to 20mA Sink Current per IO
ΠIntensity Control (256-step PWM)
• Ultra-Low Power Consumption
ΠActive mode: 27 uA
ΠDoze Mode: 7 uA
ΠSleep Mode: 1.1 uA
• I2C Serial Interface
Π2 Sub-Addresses Selectable by Pin
• Programmable Interrupt or Real-Time Status Pin
• -40°C to +105°C Operation
• Compact Size Package
Π1.60 x 1.60 mm QFN
ΠAEC-Q100 compatible (Grade 2)
ΠWettable flank package
• Pb & Halogen Free, RoHS/WEEE compliant

Applications
• Automotive
• Industrial
• Telecom
• White goods

Description
The SX9331WQ is a 5 channel smart capacitive proximity sensor
for Smart Human Sensing as well as other demanding proximity
and touch applications.
It has a unique Smart Human Engine that is able to accurately
discriminate between an inanimate object and human body.
Operating directly from an input supply voltage of 2.7-3.6V,
the SX9331WQ outputs its data via I2C serial bus. The I2C
serial communication bus port is compatible with 1.8V host
control to report body detection/proximity and to facilitate
parameter settings adjustment. Upon proximity detection, the
NIRQ output asserts, enabling the user to either determine the
relative proximity distance, or simply obtain an indication of
detection.
The SX9331WQ includes an on-chip auto-calibration controller
that regularly performs sensitivity adjustments to maintain
peak performance over a wide variation of temperature,
humidity and noise environments, providing simplified product
development and enhanced performance.