Page 1
5mm T-1 3/4
Ambient Light Sensor
Features
‧Excellent IR-Cut performance
‧Close responsively to the human eye spectrum
‧Light to Current, analog output
‧Good output linearity across wide illumination range
‧Low sensitivity variation across various light sources
‧Operation temperature performance, -40 oC to 85oC
‧Wide supply voltage range, 1.8V to 5.5V
‧Size: 5mm Lamp (Flat lens)
‧RoHS compliant package
Description
The ALS-PDIC243-3B is an ambient light sensor, which incorporates a photodiode and a current
amplifier IC in DIP package. EVERLIGHT ALS series products are a good effective solution to the power
saving of display backlighting of mobile appliances, such as the mobile phones, NB and PDAs. Due to the
high rejection ratio of infrared radiation, the spectral response of the ambient light sensor is close to human
eyes. Also, it is very suitable to use ALS product for opto-switch application.
ALS-PDIC243-3B
Applications
‧Ambient light monitoring device for daylight and artificial light
– CCD camera/CCTV security equipment, Street light
‧Detection of ambient light to control display backlighting
Computing device – TFT LCD monitor for Notebook computer
Consumer device – TFT LCD TV, video camera, digital camera, toys
Everlight Electronics Co., Ltd. http://www.everlight.com
Document No: DLS-0000010 Rev.3 Sep.5, 2012
Revision : 3
LifecyclePhase:
1
Release Date:2012-09-06 17:48:50.0
Expired Period: Forever
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5mm T-1 3/4
Ambient Light Sensor
Package Dimensions
ALS-PDIC243-3B
Notes: 1.All dimensions are in millimeters
2.Tolerances unless dimensions ±0.1mm
Everlight Electronics Co., Ltd. http://www.everlight.com
Document No: DLS-0000010 Rev.3 Sep.5, 2012
Revision : 3
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Release Date:2012-09-06 17:48:50.0
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Page 3
5mm T-1 3/4
Ambient Light Sensor
Absolute Maximum Ratings (Ta=25℃ )
Parameter Symbol Rating Unit
ALS-PDIC243-3B
Supply Voltage
Vcc -0.7~6.5 V
Operating Temperature Range Topr -40 ~ +85 °C
Storage Temperature Range Tstg -40 ~ +100 °C
Soldering Temperature Range
T
sol
260
Recommended Operating Conditions (Ta=25℃ )
Parameter Symbol Min. Max. Unit
Operating Temperature Topr -40 +85 °C
Supply Voltage Vcc 1.8 5.5 V
Rankings
°C
BIN
Everlight Electronics Co., Ltd. http://www.everlight.com
Document No: DLS-0000010 Rev.3 Sep.5, 2012
Revision : 3
LifecyclePhase:
Symbol Min. Max. Unit
1 Iph2 10 16 uA
2 Iph2 14 23 uA
3 Iph2 20 30 uA
4 Iph2 26 35 uA
3
Test Condition
Vcc=3V
Ev = 100Lux
Release Date:2012-09-06 17:48:50.0
Expired Period: Forever
Page 4
5mm T-1 3/4
Ambient Light Sensor
Electrical and Optical Characteristics (Ta=25℃ )
ALS-PDIC243-3B
Parameter Symbol
Dark Current
I
PH1
I
PH2
I
D
MIN TYP MAX. Unit
--- 0.05 0.1
1 --- 3.5
10 --- 35
Light Current
Photocurrent Ratio
I
PH4
I
PH3
I
PH4
/ I
PH3
100 --- 350
100 300 ---
--- 1.2 ---
Peak Sensitivity
Wavelength
λ
p
--- 560 ---
Sensitivity
Wavelength Range
λ 390 --- 700
Rise time tr --- 0.36 ---
Fall time tf --- 1.13 ---
Test Condition
uA V
uA
uA
uA
uA
---
=3V, Ev = 0Lux
CC
VCC=3V, Ev = 10Lux
[Note1]
VCC=3V, Ev = 100Lux
[Note1]
VCC=3V, Ev = 1000Lux
[Note1]
VCC=3V, Ev = 1000Lux
[Note2]
VCC=3V, Ev = 1000Lux
nm ---
nm ---
ms
VCC = 3 V
RL = 27KΩ
ms
Angle of half
Sensitivity
Note:
1. White Fluorescent light (Color Temperature = 6500K) is used as light source. However, White LED is
substituted in mass production.
2. Illuminance by CIE standard illuminant-A / 2856K, incandescent lamp.
Everlight Electronics Co., Ltd. http://www.everlight.com
Document No: DLS-0000010 Rev.3 Sep.5, 2012
Revision : 3
LifecyclePhase:
2θ
1/2
--- 143 --- Deg.
4
Release Date:2012-09-06 17:48:50.0
Expired Period: Forever
VCC = 3 V
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5mm T-1 3/4
Ambient Light Sensor
Typical Electrical and Optical Characteristics Curves
Fig.1 Light Current vs. Illuminance Fig.2 Output Voltage vs. Illuminance
ALS-PDIC243-3B
1000
VCC = 3V
100
10
Light current (uA)
1
0.1
1 10 100 1000
Illuminance (Lux)
10
Ta= 25 ℃
Vcc = 3V
1
0.1
0.01
Output voltage (V)
1E-3
1E-4
1 10 100 1000 10000
Illuminance (Lux)
Fluo rence ligh t RL = 1 KΩ
Fluo rence ligh t RL = 7 .5 KΩ
Fluo rence ligh t RL = 2 7 KΩ
Fluo rence ligh t RL = 7 5 KΩ
Fig.3 Spectral Response Fig.4 Light current vs. Supply Voltage
1000
EV = 100 Lux
100
10
Light current (uA)
Fig.5 Light Current vs. Temperature
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
Relative light current
0.4
0.2
0.0
-60 -40 -20 0 20 40 60 80 100
Everlight Electronics Co., Ltd. http://www.everlight.com
Document No: DLS-0000010 Rev.3 Sep.5, 2012
Revision : 3
LifecyclePhase:
VCC = 3V
EV = 100 Lux
Temperature ( )℃
1
1 2 3 4 5 6
Supply voltage (V)
Fig.6 Dark Current vs. Temperature
5
Release Date:2012-09-06 17:48:50.0
Expired Period: Forever
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5mm T-1 3/4
Ambient Light Sensor
Converting Photocurrent to Voltage
ALS-PDIC243-3B
Note:
1. The output voltage (Vout ) is the product of photocurrent (IPH ) and loading resistor (RL )
2. A right loading resistor shall be chosen to meet the requirement of maximum ambient light,
and output saturation voltage:
Vout (max.) = Iout (max.) × RL ≦ Vout(saturation)= Vcc-0.4V
Everlight Electronics Co., Ltd. http://www.everlight.com
Document No: DLS-0000010 Rev.3 Sep.5, 2012
Revision : 3
LifecyclePhase:
6
Release Date:2012-09-06 17:48:50.0
Expired Period: Forever
Page 7
5mm T-1 3/4
Ambient Light Sensor
Packing Quantity Specification
1.500PCS/1Bag, 5Bags/1Box
2.10Boxes/1Carton
Label Format
ALS-PDIC243-3B
CPN: Customer’s Production Number
P/N : Production Number
QTY: Packing Quantity
CAT: Ranks
HUE: Peak Wavelength
REF: Reference
LOT No: Lot Number
Everlight Electronics Co., Ltd. http://www.everlight.com
Document No: DLS-0000010 Rev.3 Sep.5, 2012
Revision : 3
LifecyclePhase:
7
Release Date:2012-09-06 17:48:50.0
Expired Period: Forever
Page 8
5mm T-1 3/4
Ambient Light Sensor
ALS-PDIC243-3B
Note
1. Above specification may be changed without notice. EVERLIGHT will reserve authority
on material change for above specification.
2. When using this product, please observe the absolute maximum ratings and the
instructions for using outlined in these specification sheets. EVERLIGHT assumes no
responsibility for any damage resulting from use of the product which does not comply
with the absolute maximum ratings and instructions included in these specification
sheets.
3. These specification sheets include materials protected under copyright of EVERLIGHT
corporation. Please don’t reproduce or cause anyone to reproduce them without
EVERLIGHT’s consent.
Everlight Electronics Co., Ltd. http://www.everlight.com
Document No: DLS-0000010 Rev.3 Sep.5, 2012
Revision : 3
LifecyclePhase:
8
Release Date:2012-09-06 17:48:50.0
Expired Period: Forever