ISL29013 Datasheet, PDF (1/14 Pages) Intersil Corporation – Light-to-Digital Output Sensor with High Sensitivity, Gain Selection, Interrupt Function and I2C Interface

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Data Sheet
February 13, 2008
ISL29013
FN6485.0
Light-to-Digital Output Sensor with High
Sensitivity, Gain Selection, Interrupt
Function and I²C Interface
The ISL29013 is an integrated light sensor with I²C
interface. It has an internal signed15-bit integrating type
ADC designed based on the charge-balancing A/D
conversion technique. This ADC is capable of rejecting 50Hz
and 60Hz flicker caused by artificial light sources. The lux
range select feature allows the user to program the lux range
for optimized counts/lux.
In normal operation, power consumption is typically 250µA.
Furthermore, a power-down mode can be controlled by
software via the I²C interface, reducing power consumption
to less than 1µA.
The ISL29013 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
ISL29013 is specified for operation over the -40°C to +85°C
ambient temperature range.
Ordering Information
PART NUMBER
(Note)
TEMP.
PACKAGE
RANGE (°C) (Pb-Free)
PKG.
DWG. #
ISL29013IROZ-T7*
-40 to +85 6 Ld ODFN L6.2x2.1
ISL29013IROZ-EVALZ Evaluation Board
*Please refer to TB347 for details on reel specifications.
NOTE: 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.
Block Diagram
VDD
1
LIGHT DATA
PROCESS
PHOTODIODE
ARRAY
IREF
FOSC
3
REXT
INTEGRATING
ADC
EXT
TIMING
2¹⁶
COUNTER
2
GND
ISL29013
COMMAND
REGISTER
DATA
REGISTER
I²C
5 SCL
6 SDA
INT
INTERRUPT 4 INT
Features
• Range select via I²C
- Range 1 = 0 lux to 2,000 lux
- Range 2 = 0 lux to 8,000 lux
- Range 3 = 0 lux to 32,000 lux
- Range 4 = 0 lux to 128,000 lux
• Human eye response (540nm peak sensitivity)
• Temperature compensated
• Signed 15-bit resolution
• Adjustable resolution: up to 20 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)
• Operating temperature range: -40°C to 85°C
Applications
• Display and keypad backlight dimming for
- Mobile Devices: Smart phone, PDA, and GPS
- Computing devices: Notebook PC, UMPC web pod
- Consumer devices: LCD-TV, digital picture frame, and
digital cameras
• Industrial and medical light sensing
Pinout
ISL29013
(6 LD ODFN)
TOP VIEW
VDD 1
GND 2
REXT 3
6 SDA
5 SCL
4 INT
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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