VCNL4020C
www.vishay.com
Vishay Semiconductors
Rev. 1.0, 12-Jul-16
1
Document Number: 84350
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
High Resolution Digital Biosensor for Wearable Applications
with I
2
C Interface
DESCRIPTION
The VCNL4020C is a fully integrated biosensor and ambient
light sensor. Fully integrated means that the infrared emitter
is included in the package. It has 16 bit resolution. It
includes a signal processing IC and features standard I
2
C
communication interface. It features an interrupt function.
APPLICATIONS
Wearables
Health monitoring
•Pulse oximetry
FEATURES
Package type: surface mount
Package form: SMD
Dimensions (L x W x H in mm): 4.90 x 2.40 x 0.83
Integrated modules: infrared emitter (IRED),
ambient light sensor (ALS), photo diode (PD),
and signal conditioning IC
Interrupt function
Supply voltage range V
DD
: 2.5 V to 3.6 V
Supply voltage range IR anode: 2.5 V to 5 V
Communication via I
2
C interface
•I
2
C bus H-level range: 1.7 V to 5 V
Floor life: 72 h, MSL 4, according to J-STD-020
Low stand by current consumption: 1.5 μA
Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
OPTICAL BIOSENSORS FUNCTION
Built-in infrared emitter and broader sensitivity
photodiode allows to also work with green and red LEDs
16 bit effective resolution ensures excellent cross talk
immunity
Programmable LED drive current from 10 mA to 200 mA in
10 mA steps
Excellent ambient light suppression through signal
modulation
AMBIENT LIGHT FUNCTION
Built-in ambient light photo-pin-diode with
close-to-human-eye sensitivity
16 bit dynamic range from 0.25 lx to 16 klx
100 Hz and 120 Hz flicker noise rejection
Note
(1)
Adjustable through I
2
C interface
7 nc
6 nc
9 GND
8 GND
10 IR cathode
IR anode 1
SDA 2
INT 3
SCL 4
V
DD
5
22620
PRODUCT SUMMARY
PART
NUMBER
OPERATING
VOLTAGE
RANGE
(V)
I
2
C BUS
VOLTAGE
RANGE
(V)
LED PULSE
CURRENT
(1)
(mA)
AMBIENT
LIGHT
RANGE
(lx)
SPECTRAL
BANDWIDTH
RANGE
λ
0.5
(nm)
OUTPUT
CODE
ADC RESOLUTION
BIOSENSOR / AMBIENT
LIGHT SENSOR
VCNL4020C 2.5 to 3.6 1.7 to 5 10 to 200 0.25 to 16 383 550 to 970 16 bit, I
2
C 16 bit / 16 bit
VCNL4020C
www.vishay.com
Vishay Semiconductors
Rev. 1.0, 12-Jul-16
2
Document Number: 84350
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
Notes
(1)
MOQ: minimum order quantity
(2)
A sensor starter kit is available, along with an add-on demo board for each of the sensors.
Please visit www.vishay.com/moreinfo/vcnldemokit/
for more information.
Contact any catalog distributor or a local Vishay sales representative to purchase the sensor starter kit and contact
sensorstechsupport@vishay.com
to receive an add-on sensor board.
ORDERING INFORMATION
ORDERING CODE PACKAGING VOLUME
(1)
REMARKS
VCNL4020C-GS08
Tape and reel
MOQ: 3300 pcs
4.90 mm x 2.40 mm x 0.83 mm
VCNL4020C-GS18 MOQ: 13 000 pcs
SENSORSTARTERKIT
(2)
- MOQ: 1 pc -
ABSOLUTE MAXIMUM RATINGS (T
amb
= 25 °C, unless otherwise specified)
PARAMETER TEST CONDITION SYMBOL MIN. MAX. UNIT
Supply voltage V
DD
-0.3 5.5 V
Operation temperature range T
amb
-25 +85 °C
Storage temperature range T
stg
-25 +85 °C
Total power dissipation T
amb
25 °C P
tot
-50mW
Junction temperature T
j
-100°C
BASIC CHARACTERISTICS (T
amb
= 25 °C, unless otherwise specified)
PARAMETER TEST CONDITION SYMBOL MIN. TYP. MAX. UNIT
Supply voltage V
DD
2.5 - 3.6 V
Supply voltage IR anode 2.5 - 5 V
I
2
C bus H-level range 1.7 - 5 V
INT H-level range 1.7 - 5 V
INT low voltage 3 mA sink current - - 0.4 V
Current consumption
Standby current,
no LED-operation
-1.5A
Current consumption
pulse mode incl. LED
(averaged)
2 measurements per second,
LED current 20 mA
-5-μA
250 measurements per second,
LED current 20 mA
- 520 - μA
2 measurements per second,
LED current 200 mA
-35-μA
250 measurements per second,
LED current 200 mA
-4-mA
Current consumption ambient
light mode
2 measurements per second
averaging = 1
-2.5-μA
8 measurements per second
averaging = 1
-10-μA
2 measurements per second
averaging = 64
- 160 - μA
8 measurements per second
averaging = 64
- 640 - μA
Ambient light resolution Digital resolution (LSB count ) - 0.25 - lx
Ambient light output
E
V
= 100 lx
averaging = 64
- 400 - counts
I
2
C clock rate range f
SCL
- - 3400 kHz
VCNL4020C
www.vishay.com
Vishay Semiconductors
Rev. 1.0, 12-Jul-16
3
Document Number: 84350
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
CIRCUIT BLOCK DIAGRAM
Note
nc must not be electrically connected
Pads 6 and 7 are only considered as solder pads
TEST CIRCUIT
BASIC CHARACTERISTICS (T
amb
= 25 °C, unless otherwise specified)
Fig. 1 - Idle Current vs. Ambient Temperature
Fig. 2 - Idle Current vs. V
DD
Fig. 3 - Proximity Value vs. Distance
Fig. 4 - Forward Current vs. Temperature
10 IR cathode
9 GND
8 GND
6 nc
7 nc
IR anode 1
SDA 2
INT 3
SCL 4
V
DD
5
IRED
VCNL4020C
ASIC
Ambi
PD
PD
d = 20 mm
Kodak gray card
(18 % reectivity)
VCNL4020C
IRED
30 mm x 30 mm
PD
2.4
1.0
1.2
1.4
1.8
1.6
2.0
2.2
110- 50
- 30
10 50 90
- 10
30 70
I
DD
- Supply Current Idle Mode (μA)
T
amb
- Ambient Temperature (°C)22301
V
DD
= 3.6 V
V
DD
= 3.5 V
V
DD
= 3.3 V
V
DD
= 3.1 V
V
DD
= 2.5 V
V
DD
= 2.7 V
V
DD
= 2.9 V
2.4
1.0
1.2
1.4
1.6
1.8
2.0
2.2
3.82.4 2.6 2.8 3.0 3.2 3.4 3.6
I
DD
- Supply Current Idle Mode (μA)
V
DD
- Supply Voltage (V)
22302
100 °C
80 °C
55 °C
25 °C
- 10 °C
- 40 °C
100 000
1
100
1000
10 000
10
0.1
1
10 100
Proximity Value (cts)
Distance to Reecting Card (mm)
LED current 200 mA
Media: Kodak gray card
Mod. frequency = 390 kHz
LED current 100 mA
LED current 20 mA
250
0
50
100
150
200
140- 60
- 20
20 60 100
I
IRED
- Forward Current IRED (mA)
T
amb
- Ambient Temperature (°C)
22304
20 mA
40 mA
60 mA
80 mA
100 mA
120 mA
140 mA
160 mA
180 mA
200 mA
V
IRED
= 2.5 V

VCNL4020C-GS08

Mfr. #:
Manufacturer:
Description:
Ambient Light and Proximity Sensor 10-Pin SMD T/R
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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