APDS-9309 Datasheet, PDF (1/18 Pages) AVAGO TECHNOLOGIES LIMITED – Miniature Ambient Light Photo Sensor with Digital (I2C) Output

APDS-9309
Miniature Ambient Light Photo Sensor
with Digital (I²C) Output
Data Sheet
Description
The APDS-9309 is a low-voltage Digital Ambient Light
Photo Sensor that converts light intensity to digital
signal output capable of direct I²C-bus interface. Each
device consists of one broadband photodiode (visible
plus infrared) and one infrared photodiode. Two integrat-
ing 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 micropro-
cessor where illuminance (ambient light level) in lux is
derived using an empirical formula to approximate the
human-eye response.
Applications
• Detection of ambient light to control display
backlighting
o Mobile devices – Cell phones, PDAs, PMP
o Computing devices – Notebooks, Tablet PC, Key
board
o 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
Features
• Approximate the human-eye response
• Precise Illuminance measurement under diverse light-
ing conditions
• Programmable Interrupt Function with User-Defined
Upper and Lower Threshold Settings
• 16-Bit Digital Output with I²C Fast-Mode at 400 kHz
• Programmable Analog Gain and Integration Time
• Miniature ChipLED Package
o Height – 0.65 mm
o Length – 2.00 mm
o Width – 2.00 mm
• 50/60 Hz Lighting Ripple Rejection
• Low 2.5 V Input Voltage and 1.8 V Digital Output
• Low Active Power (0.6 mW Typical) with Power Down
Mode
• RoHS Compliant
Application Support Information
The Application Engineering Group is available to
assist you with the application design associated with
APDS-9309 ambient light photo sensor module. You can
contact them through your local sales representatives for
additional details.