Intersil ISL29125 Digital red, green and blue color light sensor with ir blocking filter Datasheet

Digital Red, Green and Blue Color Light Sensor with IR
Blocking Filter
ISL29125
Features
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.
• 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
C1
Vbus
R1
C2
VDD
R2 R3 R4
1
VDD
SDA
4
SDA
MCU SCL
6
SCL ISL29125
GPIO
5
INT
NC
2
GND
R1 – 100 Ω
R2 – 2.7k Ω to 10k Ω
R3 – 2.7k Ω to 10k Ω
R4 – 2.7k Ω to 10k Ω
C1 – 1µF
C2 – 0.1µF
3
FIGURE 1. TYPICAL APPLICATION DIAGRAM
November 20, 2013
FN8424.0
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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ISL29125
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in the quality certifications found at www.intersil.com/en/support/qualandreliability.html
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time
without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be
accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third
parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
2
FN8424.0
November 20, 2013
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