VCNL4200傳感器變送器的光學(xué)傳感器-環(huán)境光IR紅外線UV紫外線傳感器規(guī)格書PDF中文資料

DESCRIPTION

VCNL4200 integrates a high sensitivity long distance

proximity sensor (PS), ambient light sensor (ALS), and

940 nm IRED into one small package. It incorporates

photodiodes, amplifiers, and analog to digital converting

circuits into a single chip using a CMOS process. The 16-bit

high resolution ALS offers excellent sensing capabilities

with sufficient selections to fulfill most applications whether

a dark or high transparency lens design. VCNL4200 offers

individual programmable high and low threshold interrupt

features for the best utilization of resources and power

saving on the microcontroller. For the 12-bit / 16-bit

proximity sensing function, VCNL4200 has a built-in

intelligent cancellation scheme that eliminates background

light issues. The persistence feature prevents false

judgment of proximity sensing due to ambient light noise.

The adoption of the patented FiltronTM technology achieves

the closest ambient light spectral sensitivity to real human

eye responses. VCNL4200 provides excellent temperature

compensation capability for keeping the output stable under

changing temperature. ALS and PS functions are easily

operated via the simple command format of I2C (SMBus

compatible) interface protocol. Operating voltage ranges

from 2.5 V to 3.6 V.

FEATURES

? Package type: surface-mount

? Dimensions (L x W x H in mm): 8.0 x 3.0 x 1.8

? Integrated modules: infrared emitter (IRED),

ambient light sensor (ALS), proximity sensor

(PS), and signal conditioning IC

? Operates ALS and PS in parallel structure

? FiltronTM technology adoption for robust

background light cancellation

? Supports low transmittance (dark) lens design

? Temperature compensation: -40 °C to +85 °C

? Low power consumption I2C (SMBus compatible)

interface

? Floor life: 168 h, MSL 3, according to J-STD-020

? Output type: I2C bus (ALS / PS)

? Operation voltage: 2.5 V to 3.6 V

? Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

PROXIMITY FUNCTION

? Immunity to red glow (940 nm IRED)

? Intelligent background light cancellation

? Smart persistence scheme to reduce PS response time

? Proximity distance up to 1.5 m

AMBIENT LIGHT FUNCTION

? Fluorescent light flicker immunity

? Spectrum close to real human eye responses

? Selectable maximum detection range (197 / 393 / 786 /

1573) lux with highest sensitivity 0.003 lux/step

INTERRUPT

? Programmable interrupt function for ALS and PS with

upper and lower thresholds

? Adjustable persistence to prevent false triggers for ALS

and PS

APPLICATIONS

? Presence detection to activate displays in printers,

copiers, and home appliances

? Collision detection in robots and toys

? Proximity sensing and lighting control in offices, corridors

and public buildings

? Parking space availability in lots and garages

? Proximity detection in lavatory appliances