Vishay launches new fully integrated ultra-small proximity sensor with standby current as low as 5 μA
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Vishay launches new fully integrated ultra-small proximity sensor with standby current as low as 5 μA

Posted Date: 2024-01-27

The device uses vertical cavity surface emitting lasers and intelligent dualI2CSlave address, for true wireless stereo (TWS)headsets, virtual reality/Augmented Reality(VR/AR)Various battery-powered consumer electronics applications such as helmets

USA pennsylvania MALVERN,China Shanghai2024Year1moon25day — A few days ago, Vishay Intertechnology, Inc. (NYSE stock code: VSH) announced that its optoelectronic products department launched a fully integrated new proximity sensor---VCNL36828P to improve the efficiency and performance of consumer electronics applications. The Vishay Semiconductors VCNL36828P uses a vertical cavity surface emitting laser (VCSEL) that integrates a photodiode, application specific integrated circuit (ASIC), 16-bit ADC and smart dual I2C slave address in a small 2.0 mm x 1.0 mm x 0.5 mm surface mount package.

Compared with the previous generation solution, the recently released proximity sensor has a 20% reduction in packaging area, a 20% reduction in standby current to only 5 μA, and a 40% increase in sunlight offset to 140 klx. With a sensor detection range of 200 mm and a typical rated voltage of 1.8 V, the device provides excellent proximity detection performance while reducing power consumption and improving efficiency in space-constrained, battery-powered applications.

The new proximity sensor can be used to automatically wake up and turn off smartphone and smartwatch screens, in addition to detecting whether users are wearing true wireless stereo (TWS) headsets, virtual reality/augmented reality (VR/AR) headsets and smart glasses. To reduce cost in these applications, the VCNL36828P smart dual I2C slave address can connect two proximity sensors without the need for a multiplexer.

The device's programmable interrupt feature allows designers to set upper and lower interrupt thresholds, reducing the need for continuous communication with the microcontroller. VCNL36828P uses intelligent cancellation technology to eliminate crosstalk, and its intelligent continuous design ensures accurate detection and faster response. The peak wavelength of VCSEL is 940 nm, with no visible "red tail". The sensor complies with RoHS and Vishay green standards and is halogen-free.

Device specification sheet:

Product number VCNL36828P Function PS+VCSEL Package size (mm) 2.0 x 1.0 x 0.5 voltage (V) 1.65~2.0 I²Cbus voltage (V) 1.2~3.6 VCSELMaximum drive current (mA) 20 Detection distance (mm) 200 Power consumption, standby state (μA) 5 close to resolution 16 bit


Samples of VCNL36828P are now available and mass production has been achieved, with a lead time of 14 weeks.


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