Vishay VCNL36828P

A small package proximity sensor with a VCSEL, low idle current, I2C interface, and smart dual slave address.

VCNL36828P is a small package proximity sensor with a VCSEL, low idle current, I²C interface. It is a fully integrated proximity sensor. It combines a vertical-cavity surface-emitting laser (VCSEL), photodiode, and application-specific integrated circuit (ASIC) within a single package. The VCNL36828P has been developed for proximity detection applications that require a dual server address, low power consumption, small package size, small window size, and short-range operation. In addition, given the typical rated supply voltage of 1.8V to reduce power consumption, the sensor is intended for battery-powered applications. Typical applications are smartphones and true wireless stereo (TWS) earbuds, VR/AR headsets and smart glasses, smartwatches, and touchless button/dispensing.

Key features

• Dimensions (L x W x H) is 2.0 x 1.0 x 0.5mm, -40 to 85°C ambient temperature range
• Vertical-cavity surface emitting laser, photodiode, application-specific integrated circuit (ASIC)
• 1.8V rated power supply and I²C bus, smart dual I²C address in one package
• Low power consumption with 5 μA idle current, interrupt functionality
• A small package allows a design with a small window size
• Immunity to red glow (940nm VCSEL), programmable I_VCSEL sink current
• Intelligent cancellation to reduce cross talk phenomenon
• Smart persistence scheme to reduce measurement response time
• 200mm operating range, 1.65 to 2V operating voltage range
• 1.2 to 3.6V I²C bus voltage range, 20mA max VCSEL driving current