Vishay – Optoelectronics: Bright Ideas, Stellar Products


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The VCNL4100 can sense objects up to 1 meter away. As a fully integrated sensor, it includes an infrared emitter, proximity detector, ambient light sensor, signal conditioning IC, and I2C interface. It offers a programmable interrupt feature to react to user-defined upper and lower thresholds, background light cancellation, and FiltronTM technology for on-chip ambient light sensing.


  • Up to 1 meter detection range
  • 8-bit proximity sensing resolution
  • 16-bit ambient light sensing resolution
  • Adjustable persistence to prevent false triggers
  • Temperature compensation for stable output
  • I2C (SMBus compatible) interface protocol
  • 2.5V to 3.6V operating voltage range


  • Display control for home appliances
  • Lighting controls
  • Robot and drone collision detection
  • Gaming attract mode
  • Outdoor displays