TMD37823 Datasheet, PDF (1/34 Pages) TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS – Color Light-To-Digital Converter with Proximity Sensing

TMD3782
Datasheet - Mar. 2013 - V2
General Description
Figure TMD3782 – 1:
Key Benefits and Features
Color Light-To-Digital Converter with Proximity Sensing
The TMD3782x device will perform color temperature
measurement, ambient light sensing (ALS) and proximity
detection with background light rejection. The device detects
light intensity under a variety of lighting conditions and through a
variety of attenuation materials, including dark glass. The
proximity detection feature allows a large dynamic range of
operation for accurate distance detection, such as in a cell phone
when the user positions the phone close to their ear. IR LED sink
current is factory trimmed to provide consistent proximity
response without requiring customer calibrations. An internal
state machine provides the ability to put the device into a low power
state between proximity and RGBC measurements providing very
low average power consumption.
The color sensing feature is useful in applications such as
backlight control, solid state lighting, reflected LED color
sampler, or fluorescent light color temperature detection. The
integrated IR blocking filter makes this device an excellent
ambient light sensor, color temperature monitor, and general
purpose color sensor.
Benefit
Feature
Single Device Integrated Optical Solution
RGB, Ambient Light Sensor (ALS) and Proximity Support
• Power Management Features
• I²C Fast Mode Interface Compatible
• Integral IR LED
• Small 8 lead optical module
Color Temperature and Ambient Light
Sensing
• UV / IR blocking filters
• Programmable Gain & Integration Time
• 1,000,000:1 Dynamic Range
Equal Response to 360º Incident Light
Circular Segmented RGBC Photodiode
Ideal for Operation Behind Dark Glass
Very High Sensitivity
Proximity Detection with Integrated IR LED
• Background Ambient Light Rejection
• Factory Trimmed, Consistent Response
• Programmable Current Sink for IR LED Drive
Datasheet - Mar. 2013 - V2
TMD3782 – 1