ISL29003_14 Datasheet, PDF (1/14 Pages) Intersil Corporation – Light-to-Digital Output Sensor with High Sensitivity, Gain Selection, Interrupt Function and I2C Interface

Data Sheet
November 17, 2011
ISL29003
FN7464.6
Light-to-Digital Output Sensor with High
Sensitivity, Gain Selection, Interrupt
Function and I²C Interface
The ISL29003 is an integrated light sensors with a 16-bit
integrating type ADC, I²C user programmable lux range
select for optimized counts/lux, and I²C multi-function control
and monitoring capabilities. The internal ADC provides 16-bit
resolution while rejecting 50Hz and 60Hz flicker caused by
artificial light sources.
In normal operation, power consumption is less than 300µA.
Furthermore, an available software power-down mode
controlled via the I²C interface reduces power consumption
to less than 1µA.
The ISL29003 supports a hardware interrupt that remains
asserted low until the host clears it through I²C interface.
Designed to operate on supplies from 2.5V to 3.3V, the
ISL29003 is specified for operation over the -40°C to +85°C
ambient temperature range.
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
PACKAGE
(Pb-free)
PKG. DWG. #
ISL29003IROZ (Note 4) 6 Ld ODFN
L6.2x2.1
ISL29003IROZ-T7
6 Ld ODFN
L6.2x2.1
ISL29003IROZ-EVAL
Evaluation Board
NOTES:
1. Please refer to TB347 for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special
Pb-free material sets; molding compounds/die attach materials
and 100% matte tin plate - e3 termination finish, which is RoHS
compliant and compatible with both SnPb and Pb-free soldering
operations. Intersil Pb-free products are MSL classified at
Pb-free peak reflow temperatures that meet or exceed the
Pb-free requirements of IPC/JEDEC J STD-020.
3. For Moisture Sensitivity Level (MSL), please see device
information page for ISL29003. For more information on MSL
please see tech brief TB466.
4. Not recommended for new designs.
Pinout
ISL29003
(6 LD ODFN)
TOP VIEW
VDD 1
6 SDA
GND 2
REXT 3
THERMAL
PAD
5 SCL
4 INT
Features
• Range select via I²C
- Range 1 = 0 lux to 1000 lux
- Range 2 = 0 lux to 4000 lux
- Range 3 = 0 lux to 16,000 lux
- Range 4 = 0 lux to 64,000 lux
• Human eye response (540nm peak sensitivity)
• Temperature compensated
• 16-bit resolution
• Adjustable resolution: up to 65 counts per lux
• User-programmable upper and lower threshold interrupt
• Simple output code, directly proportional to lux
• IR + UV rejection
• 50Hz/60Hz rejection
• 2.5V to 3.3V supply
• 6 Ld ODFN (2.1mmx2mm)
• Pb-free (RoHS compliant)
Applications
• Ambient light sensing
• Backlight control
• Temperature control systems
• Contrast control
• Camera light meters
• Lighting controls
Block Diagram
VDD
1
PHOTODIODE 1
MUX
INTEGRATING
ADC
PHOTODIODE 2
IREF
FOSC
3
REXT
EXT
TIMING
2¹⁶
COUNTER
2
GND
ISL29003
COMMAND
REGISTER
DATA
REGISTER
I²C
5 SCL
6 SDA
INT
INTERRUPT
4 INT
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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