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Broadcom APDS-9930 Miniature Ambient Light Photo Sensor

Broadcom APDS-9930 Miniature Ambient Light Photo Sensor converts light intensity to digital signal output capable of direct I²C interface. Each device consists of one broadband photodiode (visible plus infrared) and one infrared photodiode. Two integrating ADCs convert the photodiode currents to a digital output that represents the irradiance measured on each channel. This digital output can be input to a microprocessor where illuminance (ambient light level) in lux is derived using an empirical formula to approximate the human-eye response.

Features

  • Approximate the human-eye response
  • Precise Illuminance measurement under diverse lighting conditions
  • Programmable interrupt function with user-defined upper and lower threshold settings
  • 16-Bit digital output with I2C fast-mode at 400kHz
  • Programmable analog gain and integration time
  • Miniature ChipLED package height - 0.55mm length - 2.60mm Width - 2.20mm
  • 50/60Hz Lighting ripple rejection
  • Low 2.5V input voltage and 1.8V digital output
  • Low active power (0.6mW Typical) with power down mode
  • RoHS Compliant

Applications

  • Detection of ambient light to control display backlighting
    • Mobile devices – cell phones, PDAs, PMP
    • Computing devices – notebooks, tablet PC, keyboard
    • Consumer devices – LCD monitor, flat-panel TVs, video cameras, digital still camera
  • Automatic residential and commercial lighting management
  • Automotive instrumentation clusters
  • Electronic signs and signals

Functional Block Diagram

Block Diagram - Broadcom APDS-9930 Miniature Ambient Light Photo Sensor
Publicado: 2013-11-25 | Actualizado: 2022-03-11