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High Sensitivity Long Distance Proximity And Ambient Light Sensor With Integrated 940 Nm Infrared Emitter
The VCNL4200 is a high-sensitivity long-distance proximity and ambient light sensor that integrates a proximity sensor, ambient light sensor, and 940 nm infrared emitter into a compact SMD-10 package. Built using advanced CMOS technology, the device combines photodiodes, amplifiers, and analog-to-digital conversion circuitry into a single solution, enabling accurate proximity detection and ambient light measurement while reducing board space requirements. The 16-bit high-resolution ambient light sensor provides excellent performance across a wide range of lighting conditions and supports both dark and high-transparency lens designs.
The proximity sensing function features intelligent background light cancellation and programmable 12-bit or 16-bit resolution options for improved detection accuracy. Vishay's patented Filtron technology closely matches the spectral response of the human eye while providing exceptional ambient light rejection, including sunlight immunity. Integrated temperature compensation maintains stable output performance under changing environmental conditions. The I2C SMBus-compatible interface simplifies integration with microcontrollers, making the VCNL4200 ideal for consumer electronics, industrial automation, smart devices, and battery-powered applications.
Key Features
- Integrated Proximity And Ambient Light Sensor: Combines ALS, proximity sensing, and 940 nm infrared emitter in one package.
- Long Distance Proximity Detection: High-sensitivity sensing for extended detection range.
- 16-Bit Ambient Light Sensor: High-resolution ambient light measurement.
- Programmable Proximity Resolution: Supports 12-bit and 16-bit proximity sensing modes.
- 940 Nm Infrared Emitter: Integrated IRED for reliable proximity detection.
- Filtron Technology: Spectral response closely matches the human eye.
- Ambient Light Rejection: Excellent immunity to sunlight and background light interference.
- Intelligent Cancellation Scheme: Eliminates background light effects during proximity sensing.
- Persistence Filtering: Reduces false triggering caused by ambient light noise.
- Programmable Interrupt Thresholds: Individual high and low threshold settings for ALS and proximity sensing.
- Integrated Temperature Compensation: Stable performance across varying temperatures.
- I2C SMBus Compatible Interface: Easy integration with embedded systems.
- Low Operating Voltage: Operates from 2.5 V to 3.6 V.
- Compact SMD-10 Package: Suitable for space-constrained designs.
Applications
- Smartphone proximity sensing
- Display brightness control
- Touchless user interfaces
- Smart home devices
- Wearable electronics
- Industrial automation systems
- Occupancy detection
- Gesture recognition systems
- Tablet and laptop proximity sensing
- Battery-powered devices
- IoT sensing applications
- Consumer electronics
