ISL29125 Datasheet, PDF (1/2 Pages) Intersil Corporation – Digital Red, Green and Blue Color Light Sensor with IR Blocking Filter

Digital Red, Green and Blue Color Light Sensor with IR
Blocking Filter
ISL29125
The ISL29125 is a low power, high sensitivity, RED, GREEN,
and BLUE color light sensor (RGB) with an I²C (SMBus
compatible) interface. Its state-of-the-art photodiode array
provides an accurate RGB spectral response and excellent light
source to light source variation (LS2LS). The ISL29125 is
designed to reject IR in light sources allowing the device to
operate in environments from sunlight to dark rooms. The
integrating ADC rejects 50Hz and 60Hz flicker caused by
artificial light sources. A selectable range allows the user to
optimize sensitivity suitable for the specific application. In
normal operation mode the device consumes 56µA which
reduces to 0.5µA in power down mode. The ISL29125
supports hardware and software user programmable interrupt
thresholds. The Interrupt persistency feature reduces false
trigger notification. The device operates on supplies (VDD) from
2.25V to 3.63V, I²C supply from 1.7V to 3.63V, and operating
temperature over the -40°C to +85°C.
Features
• 56µA operating current, 0.5µA shutdown current
• Selectable range (Via I²C)
• I²C (SMBus compatible) output
• ADC resolution 16 bits
• Programmable interrupt windows
• Two optical sensitivity ranges
- Range 0 = 5.7m lux to 375 lux
- Range 1 = 0.152 lux to 10,000 lux
• Operating power supply 2.25 to 3.63V
• I²C power supply 1.7V to 3.63V
• 6 Ld ODFN (1.65x1.65x0.7mm) package
Applications
• Smart phone, PDA, GPS, tablet PCs, LCD-TVs, digital picture
frames, digital cameras
• Dynamic display color balancing
• Printer color enhancement
• Industrial/commercial LED lighting color management
• Ambient light color detection/correction
• OLED display aging compensation
Vbus
C1 C2
R1
VDD
SDA
R2 R3 R4
4 SDA
1
VDD
MCU ^SCL
6 SCL ISL29125 _NC 2
GPIO
5 INT
R1 – 100 Ω
R2 – 2.7kΩ to 10kΩ
R3 – 2.7k Ω to 10kΩ
R4 – 2.7k Ω to 10kΩ
C1 – 1µF
C2 – 0.1µF
GND
3
FIGURE 1. TYPICAL APPLICATION DIAGRAM
November 20, 2013
1
FN8424.0
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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