OPT3001DNPR

Part: OPT3001 Ambient Light Sensor (ALS), Texas Instruments

Type: Ambient Light Sensor

Description: The OPT3001 is a sensor that measures the intensity of visible light, offering measurements from 0.01 lux to 83k lux with a 23-bit effective dynamic range, low operating current of 1.8 μA (typ), and operates from 1.6 V to 3.6 V.

Operating Conditions:

• Supply voltage: 1.6–3.6 V
• Operating temperature: -40 to 85 °C
• I2C pull-up supply voltage: 1.6–5.5 V
• Max lux measurement: 83865.6 lux

Absolute Maximum Ratings:

• Max supply voltage: 6 V (VDD to GND)
• Max continuous current: 10 mA (into any pin)
• Max junction/storage temperature: 150 °C

Key Specs:

• Measurement range: 0.01 lux to 83865.6 lux
• Resolution (LSB): 0.01 lux (Lowest full-scale range)
• Relative accuracy between gain ranges: 0.2% (typ)
• Infrared response (850 nm): 0.2% (typ)
• Active Quiescent current: 1.8 μA (typ, VDD = 3.6 V)
• Shutdown Quiescent current: 0.3 μA (typ, M[1:0] = 00, VDD = 3.6 V)
• I2C SCL operating frequency (Fast Mode): 0.01 to 0.4 MHz
• Total integration time (800-ms mode): 720 to 880 ms

Features:

• Precision Optical Filtering to Match Human Eye: Rejects > 99% (typ) of IR
• Automatic Full-Scale Setting Feature Simplifies Software and Ensures Proper Configuration
• Measurements: 0.01 lux to 83 k lux
• 23-Bit Effective Dynamic Range With Automatic Gain Ranging
• 12 Binary-Weighted Full-Scale Range Settings: < 0.2% (typ) Matching Between Ranges
• Low Operating Current: 1.8 μA (typ)
• Operating Temperature Range: -40°C to +85°C
• Wide Power-Supply Range: 1.6 V to 3.6 V
• 5.5-V Tolerant I/O
• Flexible Interrupt System
• Small-Form Factor: 2.0 mm × 2.0 mm × 0.65 mm

Applications:

• Display Backlight Controls
• Lighting Control Systems
• Tablet and Notebook Computers
• Thermostats and Home Automation Appliances
• Point-of-Sale Terminals
• Outdoor Traffic and Street Lights
• Cameras

Package:

• USON (6) (2.00 mm x 2.00 mm)

• 1 · Precision Optical Filtering to Match Human Eye:
• -Rejects > 99% (typ) of IR
• Automatic Full-Scale Setting Feature Simplifies Software and Ensures Proper Configuration
• Measurements: 0.01 lux to 83 k lux
• 23-Bit Effective Dynamic Range With Automatic Gain Ranging
• 12 Binary-Weighted Full-Scale Range Settings: < 0.2% (typ) Matching Between Ranges
• Low Operating Current: 1.8 μA (typ)
• Operating Temperature Range: -40°C to +85°C
• Wide Power-Supply Range: 1.6 V to 3.6 V
• 5.5-V Tolerant I/O
• Flexible Interrupt System
• Small-Form Factor: 2.0 mm × 2.0 mm × 0.65 mm

• Display Backlight Controls
• Lighting Control Systems
• Tablet and Notebook Computers
• Thermostats and Home Automation Appliances
• Point-of-Sale Terminals
• Outdoor Traffic and Street Lights
• Cameras

• VDD 1

• ADDR 2

• GND 3

• SDA 6

• INT 5

SCL

4

At TA = 25°C, VDD = 3.3 V, 800-ms conversion time (CT = 1) (1) , automatic full-scale range (RN[3:0] = 1100b (1) ), white LED, and normal-angle incidence of light, unless otherwise specified.

• (5) The conversion time, from start of conversion until the data are ready to be read, is the integration time plus 3 ms.

(6) The specified leakage current is dominated by the production test equipment limitations. Typical values are much smaller.

See (1)

Ambient light sensors are used in a wide variety of applications that require control as a function of ambient light. Because ambient light sensors nominally match the human eye spectral response, they are superior to photodiodes when the goal is to create an experience for human beings. Very common applications include display optical-intensity control and industrial or home lighting control.

There are two categories of interface to the OPT3001: electrical and optical.