VSHVCNL4040M3OE

Overview

The VCNL4040M3OE is a highly integrated digital proximity and ambient light sensor that combines an IR emitter, photo detectors, and a signal processing IC in a single 8-pin SMD package. It utilizes Vishay Filtron technology to provide spectral sensitivity close to the human eye and offers a proximity detection range up to 200mm. The device operates over a 2.5V to 3.6V supply range and communicates via a standard I2C interface with 16-bit resolution.

Why Choose This Part

This sensor features intelligent crosstalk cancellation and a smart persistence scheme to minimize false triggers and improve measurement accuracy. Its ultra-low power consumption of 0.2 uA in sleep mode makes it ideal for battery-operated devices, while its immunity to fluorescent light flicker ensures reliable performance in indoor environments.

Applications

Getting Started

To begin development, connect the VCNL4040 to an I2C bus with pull-up resistors on the SDA and SCL lines. Engineers can use the programmable interrupt pin to wake a host MCU only when a specific proximity threshold or light level is reached, reducing system power. Evaluation can be simplified using the VCNL4040 Sensor Starter Kit from Vishay or third-party breakout boards for rapid prototyping.

Also Consider

OPT3001 TITexas Instruments - A dedicated high-precision ambient light sensor with an even closer match to the human eye's spectral response.

VL53L0X STMicroelectronics - Uses Time-of-Flight (ToF) technology for more accurate distance measurements regardless of the target's color or reflectivity.