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.