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ISL29102 Datasheet

Low Power Ambient Light-to-Voltage Nonlinear Converter

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DATASHEET
ISL29102
Low Power Ambient Light-to-Voltage Nonlinear Converter
FN6483
Rev.2.00
Nov 17, 2016
The ISL29102 is a low cost, light-to-voltage silicon optical
sensor combining a photodiode array, a nonlinear current
amplifier, and a micro-power op amp on a single monolithic IC.
Similar to human eyes, the photodiode array has peak
sensitivity at 550nm and spans from 400nm to 600nm,
rejecting UV light and IR light. The input luminance range is
from 0.3 lux to 10,000 lux.
The integrated nonlinear current amplifier boosts and converts
the photodiode signal in a square root fashion, extending the
light input dynamic range, while maintaining excellent
sensitivity at dim conditions with low lux levels. The device
consumes minimal power over a wide range of ambient lux
levels because the current consumption ramps at a square
root fashion. A dark-current compensation circuit minimizes
the effect of temperature-dependent leakage currents in the
absence of light, improving the light sensitivity at low lux levels
while maintaining excellent sensitivity at low lux levels. The
built-in 1µA op amp gives the ISL29102 an output voltage
driving advantage for heavier loads.
The ISL29102 is housed in an ultra compact 2mmx2.1mm
ODFN plastic case surface mount package. Operation is rated
from -40°C to +85°C.
Related Literature
• For a full list of related documents, visit our website
- ISL29102 product page
Features
• Square root voltage output
• 0.3 lux to 10,000 lux range
• 1.8V to 3.3V supply range
• Close to human eye spectral response
• Fast response time
• Internal temperature compensation
• Good IR rejection
• Low supply current
• Operating temperature range -40°C to +85°C
• 6 Ld ODFN: 2mmx2.1mmx0.7mm
• Pb-free (RoHS compliant)
Applications
• Display and keypad dimming for:
- Mobile devices: smart phone, PDA, GPS
- Computing devices: notebook PC, webpod
- Consumer devices: LCD-TV, digital picture frame, digital
camera
• Industrial and medical light sensing
VDD
1
LIGHT DATA
PROCESS
CURRENT
AMPLIFIER
OUTPUT CURRENT LIGHT INTENSITY
-
+
VOUT
6
GND
2
PHOTODIODE
ARRAY
4 REXT
FIGURE 1. SIMPLIFIED BLOCK DIAGRAM
FN6483 Rev.2.00
Nov 17, 2016
Page 1 of 10


Renesas Electronics Components Datasheet

ISL29102 Datasheet

Low Power Ambient Light-to-Voltage Nonlinear Converter

No Preview Available !

ISL29102
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
TEMP RANGE
(°C)
TAPE AND REEL
(UNITS)
PACKAGE
(RoHS COMPLIANT)
PKG.
DWG. #
ISL29102IROZ-T7
-40 to +85
3k 6 Ld ODFN
L6.2x2.1
ISL29102IROZ-T7A
-40 to +85
250 6 Ld ODFN
L6.2x2.1
ISL29102IROZ-EVALZ
Evaluation Board
NOTES:
1. 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 NiPdAu plate -
e4 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), see the device information page for the ISL29102. For more information on MSL, see techbrief TB363.
Pin Configuration
ISL29102
(6 LD ODFN)
TOP VIEW
VDD 1
6 VOUT
GND 2 PD 5 NC
NC 3
4 REXT
Pin Descriptions
PIN NUMBER
1
2
3
4
5
6
-
PIN NAME
VDD
GND
NC
REXT
NC
VOUT
PD
PIN DESCRIPTION
Supply (1.8V to 3.3V).
Ground
No connect
Connected to an external resistor to GND setting the light-to-voltage scaling constant.
No connect
Voltage Output
Thermal pad. The thermal pad can be connected to GND or electrically isolated.
FN6483 Rev.2.00
Nov 17, 2016
Page 2 of 10


Part Number ISL29102
Description Low Power Ambient Light-to-Voltage Nonlinear Converter
Maker Renesas
Total Page 10 Pages
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