VCNL4100 Datasheet, PDF (3/17 Pages) Vishay Siliconix – High Sensitivity Long Distance Proximity and Ambient Light Sensor with I2C Interface

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BLOCK DIAGRAM
V_DD
PS timing
controller
DSP
PS
PD
Oscillator
INT
SCLK
SDAT
Temperature
sensor
I²C bus logic
control
ALS
PD _{Low pass filter}
GND
VCNL4100
Vishay Semiconductors
PS
buffer
IRED
LED+
LED-
LED driver ^LED_CATHODE
ALS
16-bits
data
buffer
BASIC CHARACTERISTICS (T_amb = 25 °C, unless otherwise specified)
PARAMETER
TEST CONDITION
SYMBOL
MIN.
Supply voltage
V_DD
2.5
Supply voltage for IRED
V_IRED
3.8
Supply current
Excluded LED driving
I_DD
-
Shutdown current
Light condition = dark, V_DD = 3.3 V I_DD (SD)
-
ALS shut down
ALS disable, PS enable
I_ALSSD
-
PS shut down
ALS enable, PS disable
I_PSSD
-
I²C signal input
Logic high
Logic low
Logic high
Logic low
V_DD = 3.3 V
V_DD = 2.6 V
V_IH
1.5
V_IL
-
V_IH
1.4
V_IL
-
Peak sensitivity wavelength of ALS
_p
-
Peak sensitivity wavelength of PS
_pps
-
Full ALS counts
16-bit resolution
-
Full PS counts
8-bit resolution
-
Minimum
IT = 640 ms, V_DD = 3.3 V,
1 step ⁽¹⁾⁽²⁾
-
Detectable intensity
Maximum
IT = 80 ms, V_DD = 3.3 V,
65 535 steps ⁽¹⁾⁽²⁾
-
ALS dark offset
IT = 80 ms, V_DD = 3.3 V,
normal sensitivity ⁽¹⁾
0
Operating temperature range
IRED driving current
T_amb
-40
(3)
-
TYP.
-
-
195
0.2
180
175
-
-
-
-
550
940
-
-
0.01
5243
-
-
-
MAX.
3.6
5.0
-
-
-
-
-
0.8
-
0.6
-
-
65 535
255
-
-
3
+85
800
UNIT
V
V
μA
μA
μA
μA
V
V
nm
nm
steps
steps
lx
steps
°C
mA
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).


Rev. 1.2, 30-Aug-16
3
Document Number: 84319
For technical questions, contact: [e-mail]
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