Vishay – Automotive-grade proximity and ambient light sensor offers design flexibility in gesture applications

Pg.7_Vishay

Vishay_Logo
Vishay Intertechnology has introduced a new, automotive-grade proximity and ambient light sensor for gesture recognition.

Featuring FiltronTM technology, the Vishay VCNL4035X01 combines photo-detectors for proximity and ambient light, a signal conditioning IC, a 16-bit ADC and a driver for up to three external IR emitters in a 4.0mm x 2.36mm x 0.75mm surface-mount package.

It can be used to enable various functions:
• gesture recognition
• presence detection
• collision avoidance in toys and robots

The support for external IR emitters for gesture applications gives the designer flexibility to locate the emitters in the optimal position, in contrast to fully integrated gesture sensing modules, in which the emitters are located next to the sensor.

The device includes a programmable interrupt function, which allows both high and low thresholds to be set to reduce overall power consumption. The function can be programmed to trigger both the ambient light and proximity sensor.

The sensor’s Filtron technology provides spectral sensitivity similar to that of the human eye, while offering excellent cancellation of interference from background light sources. The device’s high sensitivity means that the sensor can detect objects as far as 500mm away – this range depends on the external IR emitter used.

The VCNL4035X01’s ambient light photo- diode has a detection range of 0.004lux to 4.2klux, which means that it can operate in applications with a dark or a transparent lens.

Its proximity sensor uses intelligent cancellation to eliminate cross-talk, while a smart persistence scheme ensures fast response time when an object is detected.

FEATURES

  • Immune to fluorescent light flicker
  • Excellent temperature compensation from -40°C to 105°C
  • Supply-voltage range: 2.5V to 3.6V
  • AEC-Q101 qualified
  • I2C interface

APPLICATIONS

  • Consumer electronics
  • Display activation
  • Lighting controls

Leave a Reply

Your email address will not be published. Required fields are marked *

Protected by WP Anti Spam