VCNL36687S Low Power Consumption Proximity Sensor
Vishay’s VCNL36687S has a range of up to 20 cm and is in a 3.05 mm by 2 mm leadless package
Vishay’s VCNL36687S is a fully integrated proximity sensor that combines a high-power vertical-cavity surface-emitting laser (VCSEL), a photodiode, a signal processing IC, and a 12-bit ADC in a single package. It is designed to be used in smartphones, tablets, virtual reality/augmented reality (VR/AR) headsets, and other battery-operated devices.
The VCNL36687S has a range of up to 20 cm (7.9 in) which greatly simplifies the use and design-in of the proximity sensing capability in consumer and industrial applications because no mechanical barriers are required to optically isolate the emitter from the detector. The VCNL36687S features a miniature, surface-mount 3.05 mm by 2 mm leadless package (LLP) with a low profile of 1 mm. The device’s small footprint and low height make it ideal for space-constrained applications.
Mobile devices present numerous applications for the VCNL36687S, such as minimizing accidental touch inputs on a smartphone that can lead to call drops and camera launch, or detecting when a user is wearing or not wearing a virtual reality/augmented reality (VR/AR) headset. The VCSEL’s profile of ±3° makes the VCNL36687S suitable for applications that require narrow-angle detection and minimizes optical system design concerns.
The VCNL36687S with its standard I2C bus serial digital interface allows easy access to the proximity signal. Its programmable interrupt function offers wake-up functionality for the microcontroller when a proximity change occurs, which reduces processing overhead by eliminating the need for continuous polling.
- Fully integrated, light-to-digital proximity or presence sensor
- 0.08 mA average current consumption
- Integrated modules: proximity sensor (PS) and VCSEL in a single package
- Proximity sensor especially for battery operated devices
- Mobile devices (e.g., smartphones, tablets) for touch screen looking, power saving, and more
- VR/AR headsets to detect if the headset has been put on or taken off