VCNL4020 Datasheet, PDF (1/16 Pages) Vishay Siliconix – Fully Integrated Proximity and Ambient Light Sensor

www.vishay.com
VCNL4020
Vishay Semiconductors
Fully Integrated Proximity and Ambient Light Sensor with
Infrared Emitter, I²C Interface, and Interrupt Function
IR anode 1
SDA 2
INT 3
SCL 4
V_DD 5
22620
10 IR cathode
9 GND
8 GND
7 nc
6 nc
DESCRIPTION
The VCNL4020 is a fully integrated proximity 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 I²C
communication interface. It features an interrupt function.
APPLICATIONS
• Proximity sensor for mobile devices (e.g. smart phones,
touch phones, PDA, GPS) for touch screen locking, power
saving, etc.
• Integrated ambient light function for display/keypad
contrast control and dimming of mobile devices
• Proximity/optical switch for consumer, computing and
industrial devices and displays
• Dimming control for consumer, computing and industrial
displays
FEATURES
• Package type: surface mount
• Dimensions (L x W x H in mm): 4.90 x 2.40 x 0.83
• Integrated infrared emitter, ambient light sensor,
proximity sensor, 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 I²C interface
• I²C Bus H-level range: 1.7 V to 5 V
• Floor life: 72 h, MSL 4, acc. J-STD-020
• Low stand by current consumption: 1.5 μA
• Material categorization: For definitions of compliance
please see www.vishay.com/doc?99912
PROXIMITY FUNCTION
• Built-in infrared emitter and photo-pin-diode for proximity
function
• 16 bit effective resolution for proximity detection range
ensures excellent cross talk immunity
• Programmable LED drive current from 10 mA to 200 mA in
10 mA steps
• Excellent ambient light suppression by signal modulation
• Proximity distance up to 200 mm
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
PRODUCT SUMMARY
PART NUMBER
OPERATING
RANGE
(mm)
VCNL4020
1 to 200
Note
(1) _{Adjustable through I}2_{C interface}
OPERATING
VOLTAGE
RANGE
(V)
2.5 to 3.6
I²C BUS
VOLTAGE
RANGE
(V)
1.7 to 5
LED PULSE
CURRENT ⁽¹⁾
(mA)
10 to 200
AMBIENT
LIGHT
RANGE
(lx)
AMBIENT
LIGHT
RESOLUTION
(lx)
0.25 to 16 383
0.25
OUTPUT
CODE
16 bit, I²C
Rev. 1.1, 20-Jul-12
1
Document Number: 83476
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