Product Overview
The VCNL4020 is a fully integrated proximity and ambient light sensor featuring an infrared emitter, 16-bit resolution, signal processing IC, and standard I2C communication interface with an interrupt function. It is designed for applications such as mobile device proximity sensing for touch screen locking and power saving, ambient light sensing for display contrast control and dimming, and as an optical switch in consumer, computing, and industrial devices.
Product Attributes
- Brand: Vishay Semiconductors
- Package Type: Surface-mount
- Dimensions (L x W x H in mm): 4.90 x 2.40 x 0.83
- Floor life: 72 h, MSL 4, according to J-STD-020
- Material categorization: for definitions of compliance please see www.vishay.com/doc?99912
Technical Specifications
| Part Number | Operating Range (mm) | Operating Voltage Range (V) | I2C Bus Voltage Range (V) | LED Pulse Current (mA) | Ambient Light Range (lx) | Ambient Light Resolution (lx) | Output Code | ADC Resolution |
| VCNL4020 | 1 to 200 | 2.5 to 3.6 | 1.7 to 5 | 10 to 200 | 0.25 to 16 | 0.25 | 16 bit, I2C | 16 bit / 16 bit |
2410121848_VISHAY-VCNL4020-GS08_C511034.pdf
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