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ISL29004
Data Sheet
November 17, 2011
FN6221.1
Light-to-Digital Output Sensor with Address
Selection, High Sensitivity, Gain Selection,
Interrupt Function and I 2 C Interface
The ISL29004 is an integrated light sensor with a 16-bit
integrating type ADC, I 2 C user programmable Lux range
select for optimized counts/Lux, and I 2 C 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 typically 300μA.
Futhermore, an available software power-down mode
controlled via the I 2 C interface reduces power consumption
to less than 1μA. The device also support a hardware
interrupt that remains asserted low until the host clears it
through I 2 C interface.
The ISL29004 is in an 8 Ld ODFN package and has two I 2 C
address pins for multiple devices on the same bus. The
ISL29003 is a similar light sensor with a hardwired I 2 C
address that is available in ODFN6 package.
Designed to operate on supplies from 2.5V to 3.3V, the
ISL29004 are specified for operation over the -40°C to
+85°C ambient temperature range.
Pinout
ISL29004
(8 LD ODFN)
TOP VIEW
Features
? Range select via I 2 C
- Range1 = 1000Lux
- Range2 = 4000Lux
- Range3 = 16,000Lux
- Range4 = 64,000Lux
? 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
? 50Hz/60Hz rejection
? 2.5V to 3.3V supply
? 8 Ld ODFN (3mmx3mm)
? I 2 C address selection
Applications
? Ambient light sensing
? Backlight control
? Temperature control systems
? Contrast control
VDD
1
8
SDA
? Camera light meters
? Lighting controls
GND
REXT
2
3
THERMAL
PAD
7
6
SCL
INT
Block Diagram
1
A0
4
5
A1
PHOTODIODE 1
COMMAND
REGISTER
MUX
INTEGRATING
ADC
DATA
REGISTER
8
SDA
PHOTODIODE 2
IREF
FOSC
EXT
TIMING
INT
I 2 C
7
4
5
SCL
A0
A1
3
REXT
2 16
COUNTER
2
GND
ISL29004
INTERRUPT
6 INT
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas LLC 2006, 2011. All Rights Reserved.
I 2 C Bus is a registered trademark owned by NXP Semiconductors Netherlands, B.V
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
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