DESCRIPTION
VCNL4030X01 integrates a proximity sensor (PS), ambient
light sensor (ALS), and a high power IRED 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 for excellent
sensing capabilities with sufficient selections to fulfill most
applications whether dark or high transparency lens design.
Both ALS and PS offer a programmable interrupt with
individual high and low thresholds offers the power savings
on the microcontroller.
The proximity sensor features an intelligent cancellation
scheme, so that cross talk is eliminated effectively. The
proximity’s smart persistence feature prevents the
misjudgment of proximity sensing with a fast response time.
Active force mode, one time trigger by one instruction, offers
more design flexibility to fulfill different kinds of applications
with more power savings.
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. VCNL4030X01 provides an
excellent temperature compensation capability for keeping
the output stable over temperature. 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. VCNL4030X01 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: infrared emitter (IRED),
ambient light sensor (ALS), proximity sensor
(PS), and signal conditioning IC
• Operates ALS and PS in parallel structure
• FiltronTM technology adoption for robust
background light cancellation
• Low power consumption I2C (SMBus
compatible) interface
• Orderable in four different slave addresses
• 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 (940 nm IRED)
• 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
• Proximity sensor for
- Mobile devices (e.g. smart phones, tablets) for touch
screen locking, power saving etc.
- Automotive for presence detection
• Integrated ambient light function for display / keypad
contrast control and dimming of mobile devices
• Collision detection in robots and toys
• Proximity / optical switch for consumer, computing,
automotive and industrial devices, and displays (like
notebooks, tablet PCs, and automotive touch panels)
• Dimming control for consumer, computing, industrial, and
automotive displays