isl29102 Intersil Corporation, isl29102 Datasheet

isl29102

Manufacturer Part Number

isl29102

Description

Low Power Ambient Light-to-voltage Non-linear Converter

Manufacturer

Intersil Corporation

Datasheet

1.ISL29102.pdf (7 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

isl29102IROZ-T7

Manufacturer:

Intersil

Quantity:

2 400

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Low Power Ambient Light-to-Voltage

Non-Linear Converter

The ISL29102 is a low cost light-to-voltage silicon optical

sensor combining a photodiode array, a non-linear 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 non-linear 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 sensity 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.

Ordering Information

NOTES:

Simplified Block Diagram

VDD

GND

ISL29102IROZ-T7 (Note 1) 6 Ld ODFN Tape and Reel L6.2x2.1

ISL29102IROZEVALZ

1. Please refer to TB347 for details on reel specifications.

2. These Intersil Pb-free plastic packaged products employ special Pb-

PART NUMBER (Note 2)

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.

LIGHT DATA

PROCESS

PHOTODIODE

ARRAY

OUTPUT CURRENT α √LIGHT INTENSITY

Evaluation Board

AMPLIFIER

CURRENT

PACKAGE (Pb-Free)

Data Sheet

REXT

PKG. DWG. #

1-888-INTERSIL or 1-888-468-3774

VOUT

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

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:

• Industrial and medical light sensing

Pinout

Pin Descriptions

- Mobile devices: smart phone, PDA, GPS

- Computing devices: notebook PC, webpod

- Consumer devices: LCD-TV, digital picture frame, digital

camera

All other trademarks mentioned are the property of their respective owners.

*THERMAL PAD CAN BE CONNECTED TO GND OR

ELECTRICALLY ISOLATED

July 1, 2008

Intersil (and design) is a registered trademark of Intersil Americas Inc.

NAME

REXT

VOUT

GND

VDD

GND

VDD

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.

(6 LD ODFN)

TOP VIEW

THERMAL

ISL29102

PAD*

DESCRIPTION

VOUT

REXT

ISL29102

FN6483.0

Related parts for isl29102

isl29102 Summary of contents

Page 1

... 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° ...

Page 2

... D t Delay Time for Falling Edge S ISC Short Circuit Current of Op Amp SR Slew Rate of Op Amp VOS Offset Voltage of Op Amp 2 ISL29102 Thermal Information = +25°C) Thermal Resistance ) 6 Lead ODFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum Die Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . +90°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +100°C Operating Temperature . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C Pb-free reflow profile ...

Page 3

... FIGURE 1. TEST CIRCUIT FOR RISE/FALL TIME MEASUREMENT Typical Performance Curves 1.2 HUMAN EYE RESPONSE 1.0 0.8 0.6 LIGHT SENSOR RESPONSE 0.4 0.2 0.0 -0.2 300 400 600 800 WAVELENGTH (nm) FIGURE 3. SPECTRAL RESPONSE LUMINOSITY 80° 90° 3 ISL29102 INPUT LIGHT V OUT OUTPUT R EXT 1.0k 1.1k RADIATION PATTERN 0° 10° 10° 20° 20° 30° ANGLE 40° 50° 60° 70° 0.2 ...

Page 4

... FIGURE 8. OUTPUT VOLTAGE vs LIGHT INTENSITY 1000.00 FALL TIME 100.00 DELAY TIME BEFORE RISING 10.00 1.00 RISE TIME 0.1 DELAY TIME BEFORE FALLING 0. LUX CHANGE FROM/TO 0 LUX (LUX) FIGURE 10. TRANSIENT TIME vs LUX CHANGE FROM/TO 0 LUX 4 ISL29102 (Continued) 0.7 0.6 0.5 0.4 0.3 FLUORESCENT 0.2 0.1 0.0 1000 10000 FIGURE 7. OUTPUT VOLTAGE vs LIGHT INTENSITY 0.8 0.7 0.6 ...

Page 5

... Lux 0.990 FIGURE 15. NORMALIZED OUTPUT VOLTAGE vs SUPPLY R = 100kΩ EXT NO LOAD 3.5 4.0 FIGURE 17. TRANSIENT RESPONSE OF ISL29102 FLUORESCENT LIGHT 1000 Lux 300 Lux -50 -40 -30 -20 - TEMPERATURE (°C) TEMPERATURE FLUORESCENT LIGHT 1000 Lux ...

Page 6

... Specifications” table on page 2. Optical Sensor Location Outline The green area in Figure 18 shows the optical sensor location outline of ISL29102. Along the pin-out direction, the center line (CL) of the sensor coincides with that of the (EQ. 1) packaging. The sensor width in this direction is 0.39mm. ...

Page 7

... LEAD OPTICAL DUAL FLAT NO-LEAD PLASTIC PACKAGE (ODFN) Rev 0, 9/06 2.10 6 PIN 1 INDEX AREA (4X) 0.10 TOP VIEW ( 95) TYPICAL RECOMMENDED LAND PATTERN 7 ISL29102 ± 35 NOTES: 1. Dimensions are in millimeters. Dimensions Dimensioning and tolerancing conform to AMSE Y14.5m-1994. ...

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