VCNL4100 datasheet(3/17 Pages) VISHAY

3 / 17 page

VCNL4100

www.vishay.com

Vishay Semiconductors

Rev. 1.2, 30-Aug-16

Document Number: 84319

For technical questions, contact: sensorstechsupport@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

BLOCK DIAGRAM

Notes

(1) Light source: white LED

(2) Maximum detection range to ambient light can be determined by ALS refresh time adjustment. Refer to table 17 “ALS Resolution and

Maximum Detection Range”

(3) Based on IRED on / off duty ratio = 1/5120, 1/640, 1/80, and 1/20. The circuitry should use an external MOSFET as shown with fig.10. Please

see also the Application Note “Designing the VCNL4100 into an Application” (www.vishay.com/doc?84361).



BASIC CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)

PARAMETER

TEST CONDITION

SYMBOL

MIN.

TYP.

MAX.

UNIT

Supply voltage

VDD

2.5

3.6

Supply voltage for IRED

VIRED

3.8

5.0

Supply current

Excluded LED driving

IDD

195

μA

Shutdown current

Light condition = dark, VDD = 3.3 V

IDD (SD)

0.2

μA

ALS shut down

ALS disable, PS enable

IALSSD

180

μA

PS shut down

ALS enable, PS disable

IPSSD

175

μA

I2C signal input

Logic high

VDD = 3.3 V

VIH

1.5

Logic low

VIL

0.8

Logic high

VDD = 2.6 V

VIH

1.4

Logic low

VIL

0.6

Peak sensitivity wavelength of ALS



550

Peak sensitivity wavelength of PS



pps

940

Full ALS counts

16-bit resolution

65 535

steps

Full PS counts

8-bit resolution

255

steps

Detectable intensity

Minimum

IT = 640 ms, VDD = 3.3 V,

1 step (1)(2)

-0.01

Maximum

IT = 80 ms, VDD = 3.3 V,

65 535 steps (1)(2)

5243

ALS dark offset

IT = 80 ms, VDD = 3.3 V,

normal sensitivity (1)

0-3

steps

Operating temperature range

Tamb

-40

+85

°C

IRED driving current

(3)

800

GND

I2C bus logic

control

ALS

LED driver

buffer

LED_CATHODE

SCLK

SDAT

INT

IRED

PS timing

controller

DSP

Oscillator

Temperature

sensor

Low pass filter

ALS

16-bits

data

buffer

LED-

LED+

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