DESCRIPTION
VCNL36687S integrates a proximity and a high power
VCSEL (vertical-cavity surface-emitting laser) into one small
package. It incorporates photodiodes, amplifiers, and
analog to digital converting circuits into a single chip by
CMOS process. PS programmable interrupt features of
individual high and low thresholds offers the best utilization
of resource and power saving on the microcontroller. With
just 20 mA pulse current, the VCNL36687S can detect the
Kodak Gray Card in a distance of 20 cm, where other
sensors need 200 mA.
The 12 bits proximity sensing function uses an intelligent
cancellation scheme, so that cross talk is eliminated
effectivitely. To accelerate the PS response time, smart
persistence prevents the misjudgment of proximity sensing
but also allows for a fast response time. Active force mode,
one time trigger by one instruction, is a feature offering more
power saving.
PS functions are easily operated via the simple command
format of I2C (SMBus compatible) interface protocol.
Operating voltage ranges from 1.65 V to 1.95 V.
VCNL36687S is packaged in a lead (Pb)-free 8 pin molding
package, which offers the best market-proven reliability
quality.

APPLICATIONS
• Proximity sensor especially for battery operated devices
• Mobile devices (e.g. smart phones, tablets) for touch
screen locking, power saving etc.
• VR / AR headsets to detect if the headset has been put on
or taken off

FEATURES
• Package type: surface-mount
• Dimensions (L x W x H in mm): 3.05 x 2 x 1.0
• Integrated modules: vertical cavity surface
emitting laser (VCSEL), proximity sensor (PS),
and signal conditioning IC
• Interrupt function
• Smallest light hole opening design
• Supply voltage range VDD: 1.65 V to 1.95 V
• Communication via I2C interface
• I2C bus H-level range: 1.65 V to 3.6 V
• Floor life: 168 h, MSL 3, according to J-STD-020
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912

PROXIMITY FUNCTION
• Immunity to red glow (940 nm VCSEL)
• Programmable IVCSEL sink current
• Intelligent cancellation to reduce cross talk phenomenon
• Smart persistence scheme to reduce PS response time
• 12 bits PS output data
• Programmable interrupt function for PS with upper and
lower thresholds
• Adjustable persistence to prevent false triggers for PS