DESCRIPTION
VCNL4035X01 integrates a proximity sensor (PS),
ambient light sensor (ALS), a muxx, and a driver for up
to 3 external IREDs / LEDs into one small package. It
incorporates photodiodes, amplifiers, and analog to digital
converting circuits into a single chip by CMOS process. The
16-bit high resolution ALS offers excellent sensing
capabilities with sufficient selections to fulfill most
applications whether dark or high transparency lens design.
Both ALS and PS programmable interrupt features of
individual high and low thresholds offers the best utilization
of resource and power saving on the microcontroller.
The proximity sensor features an intelligent cancellation
scheme, so that cross talk phenomenon is eliminated
effectively. To accelerate the PS response time, smart
persistence prevents the misjudgment of proximity sensing
but also keeps a fast response time. Active force mode, one
time trigger by one instruction, is another good approach for
more design flexibility to fulfill different kinds of applications
with more power saving.
The adoption of patented FiltronTM technology achieves the
closest ambient light spectral sensitivity to real human eye
responses and offers the best background light cancellation
capability (including sunlight) without utilizing the
microcontrollers’ resources. VCNL4035X01 provides an
excellent temperature compensation capability for keeping
output stable under various temperature configurations.
ALS and PS functions are easily operated via the simple
command format of I2C (SMBus compatible) interface
protocol. Operating voltage ranges from 2.5 V to 3.6 V.
VCNL4035X01 is packaged in a lead-free 8-pin QFN
package, which offers the best market-proven reliability
quality.

FEATURES
• Package type: surface-mount
• Dimensions (L x W x H in mm): 4.0 x 2.36 x 0.75
• AEC-Q101 qualified
• Integrated modules: ambient light sensor
(ALS), proximity sensor (PS), and signal
conditioning ICL
• Operates ALS and PS in parallel structure
• FiltronTM technology adoption for robust
background light cancellation
• Temperature compensation: -40 °C to +105 °C
• Low power consumption I2C (SMBus compatible)
interface
• Output type: I2C bus (ALS / PS)
• Operation voltage: 2.5 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 (≥ 890 nm IREDs)
• Programmable IRED sink current
• Intelligent cancellation to reduce cross talk phenomenon
• Smart persistence scheme to reduce PS response time
• Selectable for 12- / 16- bit PS output data

AMBIENT LIGHT FUNCTION
• High accuracy of ALS ± 10 %
• Fluorescent light flicker immunity
• Spectrum close to real human eye responses

INTERRUPT
• Programmable interrupt function for ALS and PS with
upper and lower thresholds
• Adjustable persistence to prevent false triggers for ALS
and PS

APPLICATIONS
• Handheld device
• Notebook, tablet PC
• Consumer device
• Industrial application

GESTURE APPLICATION
• 2D and 3D gesture function supported