ISL29001_14 Datasheet, PDF (1/11 Pages) Intersil Corporation – Light-to-Digital Sensor

Data Sheet
November 17, 2011
ISL29001
FN6166.7
Light-to-Digital Sensor
The ISL29001 is an integrated ambient light sensor with
ADC and I²C interface. With a spectral sensitivity curve
matched to that of the human eye, the ISL29001 provides
15-bit effective resolution while rejecting 50Hz and 60Hz
flicker caused by artificial light sources.
In normal operation, the ISL29001 consumes less than
300µA of supply current. A software power-down mode
controlled via the I²C interface disables all but the I²C
interface. A power-down pin is also provided, which reduces
power consumption to less than 1µA.
The ISL29001 includes an internal oscillator, which provides
100ms automatic integration periods, or can be externally
timed by I²C commands. Both the internal timing and the
illuminance resolution can be adjusted with an external
resistor.
Designed to operate on supplies from 2.5V to 3.3V, the
ISL29001 is specified for operation over the -40°C to +85°C
ambient temperature range. It is packaged in a clear 6 Ld
ODFN package.
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL29001IROZ-T7
6 Ld ODFN
L6.2x2.1
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 ISL29001. For more information on MSL
please see tech brief TB466.
Pinout
ISL29001
(6 LD ODFN)
TOP VIEW
VDD 1
6 SDA
GND 2
REXT 3
THERMAL
PAD
5 SCL
4 PD
Features
• Human Eye Response
• Temperature Compensated
• IR Rejection
• 15-bit Effective Resolution
• Adjustable Resolution: 3 Counts to 15 Counts per lux
• Simple Output Code, Directly Proportional to lux
• 0.3 lux to10,000 lux Range
• 50Hz/60Hz Rejection
• I²C Interface
• 2.5V to 3.3V Supply
• 6 Ld ODFN (2.1mmx2mm)
• Pb-Free (RoHS compliant)
Applications
• Ambient Light Sensing
• Ambient Backlight Control
• Temperature Control Systems
• Contrast Control
• Camera Light Meters
• Lighting Controls
• HVAC
Block Diagram
VDD PD
14
PHOTODIODE 1
MUX
INTEGRATING
ADC
PHOTODIODE 2
IREF
FOSC
2¹⁶
COUNTER
COMMAND
REGISTER
DATA
REGISTER
I²C
5 SCL
6 SDA
3
REXT
2
GND
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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