特性 Features

? 2.7-3.6V Input Supply Voltage

? Up to 5 High Performance Capacitive Sensors Inputs

? Patented On-Chip Smart Human Engine

? Capacitance Resolution down to 1aF

? Capacitance Offset Compensation up to 300pF

? Multiple thresholds per sensing input

? Separate configurations per input

? Automatic Calibration

? Up to 2 LED Drivers

? Up to 20mA Sink Current per IO

? Intensity Control (256-step PWM)

? Ultra-Low Power Consumption

? Active mode: 27 uA

? Doze Mode: 7 uA

? Sleep Mode: 1.1 uA

? I2C Serial Interface

? 2 Sub-Addresses Selectable by Pin

? Programmable Interrupt or Real-Time Status Pin

? -40°C to +105°C Operation

? Compact Size Package

? 1.60 x 1.60 mm QFN

? AEC-Q100 compatible (Grade 2)

? Wettable flank package

? Pb & Halogen Free, RoHS/WEEE compliant

Applications

? Automotive

? Industrial

? Telecom

? White goods

描述 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.