DESCRIPTION

VCNL3040 integrates a proximity sensor (PS), 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. PS

programmable interrupt features of individual high and low

thresholds offers the best utilization of resource and power

saving on the microcontroller.

The 12-bit / 16-bit proximity sensing function uses on

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.

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. VCNL3040 is

packaged in a lead (Pb)-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 2.0 x 1.1

• Integrated modules: infrared emitter (IRED),

proximity sensor (PS), and signal conditioning

IC

• Low power consumption I2C (SMBus

compatible) interface

• Floor life: 168 h, MSL 3, according to

J-STD-020

• Output type: I2C bus (PS)

• Operation voltage: 2.5 V to 3.6 V

• Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912