Vishay Intertechnology’s VCNL4035X01 is an automotive-grade proximity and ambient light sensor which gives designers a flexible way to implement 2D or 3D gesture-recognition functions.
Featuring Filtron™ technology, the 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 choice of external IR emitter.
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.
- 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
- Consumer electronics
- Display activation
- Lighting controls
- Industrial equipment