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ALS-PT19-315C/L177/TR8 Datasheet

Everlight Electronics Co Ltd

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Datasheet

LifecyclePhase:
Revision : 5
Expired Period: Forever
Release Date:2014-02-17 14:08:50.0
1Copyright © 2012, Everlight All Rights Reserved. Release Date : 12.24.2013. Issue No: DLS-0000039 Rev.5 www.everlight.com
Ambient Light Sensor
Surface - Mount
ALS-PT19-315C/L177/TR8
Features
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
Guaranteed temperature performance, -40oC to 85oC
Wide supply voltage range, 2.5V to 5.5V
Size : 1.7mm(L)*0.8mm(W)*0.6mm(H)
RoHS compliant and Pb Free package
Description
The ALS-PT19-315C/L177/TR8 is a low cost ambient light sensor, consisting of phototransistor in miniature SMD.
EVERLIGHT ALS series product 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 that of human eyes.
Applications
Detection of ambient light to control display backlighting
Mobile devices – mobile phones, PDAs
Computing device – TFT LCD monitor for Notebook computer
Consumer device – TFT LCD TV, plasma TV, video camera, digital camera, toys
Automatic residential and commercial management
Automatic contrast enhancement for electronic signboard
Ambient light monitoring device for daylight and artificial light
Street light, CCD/CCTV
LifecyclePhase:
Revision : 5
Expired Period: Forever
Release Date:2014-02-17 14:08:50.0
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT19-315C/L177/TR8
2Copyright © 2012, Everlight All Rights Reserved. Release Date : 12.24.2013. Issue No: DLS-0000039 Rev.5 www.everlight.com
Package Dimensions
Top View
Bottom View
Unit : mm
Tolerances :
0.1mm
LifecyclePhase:
Revision : 5
Expired Period: Forever
Release Date:2014-02-17 14:08:50.0
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT19-315C/L177/TR8
3Copyright © 2012, Everlight All Rights Reserved. Release Date : 12.24.2013. Issue No: DLS-0000039 Rev.5 www.everlight.com
Absolute Maximum Ratings
Parameter Symbol Rating Unit
Supply Voltage
[Note1]
Vcc -0.5~6.0 V
Operating Temperature Range Topr -40 ~ +85 °C
Storage Temperature Range Tstg -40 ~ +100 °C
Soldering Temperature Range [Note1] Tsol 260 ± 10 °C
Note1: For detail reflow time and the recommended temperature profile, please refer to page 8.
Recommended Operating Conditions
Parameter Symbol Min. Max. Unit
Operating Temperature Topr -40 +85 °C
Supply Voltage Vcc 2.5 5.5 V
LifecyclePhase:
Revision : 5
Expired Period: Forever
Release Date:2014-02-17 14:08:50.0
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT19-315C/L177/TR8
4Copyright © 2012, Everlight All Rights Reserved. Release Date : 12.24.2013. Issue No: DLS-0000039 Rev.5 www.everlight.com
Electrical and Optical Characteristics (Ta=25 )
Parameter Symbol MIN. TYP. MAX. Unit Test Condition
Dark Current ICEO --- --- 0.1 uA VCE=10V, Ev= 0Lux
Collector-Emitter
Saturation Voltage VCE(sat) --- --- 0.4 V IC=2mA, Ev= 1000Lux
IPH1 5 15 --- uA VCE=5V, Ev= 100Lx
[Note1]
IPH2 50 150 --- uA VCE=5V, Ev= 1000Lx
[Note1]
Light Current
IPH3 140 520 --- uA VCE=5V, Ev= 1000Lx
[Note2]
Photocurrent Ratio IPH3 / IPH2 --- 3.5 --- --- VCE=5V, Ev= 1000Lx
Saturation Output
Voltage Vo4.5 4.6 --- V Vcc=5V, Ev= 1000Lx
RL=75K [Note2]
Peak Sensitivity
Wavelength λp--- 630 --- nm ---
Sensitivity Wavelength
Range λ390 --- 700 nm ---
Rise time tr--- 0.11 --- ms
Fall time tf--- 0.22 --- ms
VCC = 5 V
RL = 7.5KΩ
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.
LifecyclePhase:
Revision : 5
Expired Period: Forever
Release Date:2014-02-17 14:08:50.0
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT19-315C/L177/TR8
5Copyright © 2012, Everlight All Rights Reserved. Release Date : 12.24.2013. Issue No: DLS-0000039 Rev.5 www.everlight.com
Typical Electrical and Optical Characteristics Curves
Fig.1 Light Current vs. Illuminance Fig.2 Output Voltage vs. Illuminance
Fig.3 Spectral Response Fig.4 Light current vs. Supply Voltage
300 400 500 600 700 800 900
0
20
40
60
80
100 Spectral Response (Typ.)
Relative Sensitivity (%)
Wavelength (nm)
Fig.5 Light Current vs. Temperature Fig.6 (LED) Light Current vs. Illuminance
2.0 2.5 3.0 3.5 4.0 4.5
0.96
0.97
0.98
0.99
1.00
1.01
1.02
1.03
1.04 Ev = 100 Lux
Relative light current
Vcc (V)
0 100 200 300 400 500 600 700 800 900 10001100
0
50
100
150
200
250
Light current vs. Illuminance
Light current (uA)
illuminance (Lux)
-40 -20 0 20 40 60 80 100
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3 Ev = 100 Lux
Relative light current
Temperature ( )
LifecyclePhase:
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Expired Period: Forever
Release Date:2014-02-17 14:08:50.0
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT19-315C/L177/TR8
6Copyright © 2012, Everlight All Rights Reserved. Release Date : 12.24.2013. Issue No: DLS-0000039 Rev.5 www.everlight.com
Converting Photocurrent to Voltage
RL
GND
Vout
Vcc
CL
Iph
Light
Source
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.) = IPH(max.) × RLVout(saturation) Vcc 0.4V
RL × CL0.5 (empirical data)
LifecyclePhase:
Revision : 5
Expired Period: Forever
Release Date:2014-02-17 14:08:50.0
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT19-315C/L177/TR8
7Copyright © 2012, Everlight All Rights Reserved. Release Date : 12.24.2013. Issue No: DLS-0000039 Rev.5 www.everlight.com
Recommended method of storage
Reflow Terms: JEDEC Level 4 Specification
Dry box storage is recommended as soon as the aluminum bag has been opened prevent
1. Over-current-proof
Customer must apply resistors for protection, otherwise slight voltage shift might cause
big current happen. (Burned-out might happen).
2. Storage
(1) Do not open moisture proof bag before components are ready to use.
(2) Before opening moisture proof bag, components should be kept at 30 or less and
90%RH or less.
(3) Components should be used within a year.
(4) After opened moisture proof bag, components should be kept at 30 or less and
70%RH or less.
(5) Components should be used within 72 hours after opened moisture proof bag.
(6) If the moisture absorbent material (silica gel) has faded away or the components
have exceeded the storage time, baking treatment should be performed using the
following conditions. (Baking treatment: 60±5 for 24 hours)
ESD Precaution:
Proper storage and handing procedures should be followed to prevent ESD damage to
the devices especially when they are removed from the Anti-static bag. Electro-Static Sensitive Devices warning
labels are on the packing.
LifecyclePhase:
Revision : 5
Expired Period: Forever
Release Date:2014-02-17 14:08:50.0
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT19-315C/L177/TR8
8Copyright © 2012, Everlight All Rights Reserved. Release Date : 12.24.2013. Issue No: DLS-0000039 Rev.5 www.everlight.com
Recommended Solder Profile
Notice:
(1) Reflow soldering should not be done more than two times.
(2) When soldering, do not put stress on the devices during heating.
(3) After soldering, do not warp the circuit board.
Soldering Iron
Each terminal is to go to the tip of soldering iron temperature less than 350 for 3 seconds within once in less than
the soldering iron capacity 25W. Leave two seconds and more intervals, and do soldering of each terminal. Be
careful because the damage of the product is often started at the time of the hand solder.
Repairing
Repair should not be done after the device have been soldered. When repairing is unavoidable, a double-head
soldering iron should be used (as below figure). It should be confirmed beforehand whether the characteristics of the
device will or will not be damaged by repairing.
LifecyclePhase:
Revision : 5
Expired Period: Forever
Release Date:2014-02-17 14:08:50.0
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT19-315C/L177/TR8
9Copyright © 2012, Everlight All Rights Reserved. Release Date : 12.24.2013. Issue No: DLS-0000039 Rev.5 www.everlight.com
Packing Quantity Specification
4000 PCS/ 1 Reel
Label Format
LifecyclePhase:
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Expired Period: Forever
Release Date:2014-02-17 14:08:50.0
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT19-315C/L177/TR8
10 Copyright © 2012, Everlight All Rights Reserved. Release Date : 12.24.2013. Issue No: DLS-0000039 Rev.5 www.everlight.com
Reel Dimensions
Tape Dimensions
Unit: mm
Tolerance: ±0.1mm
Unit: mm
Tolerance: ±0.1mm
LifecyclePhase:
Revision : 5
Expired Period: Forever
Release Date:2014-02-17 14:08:50.0
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT19-315C/L177/TR8
11 Copyright © 2012, Everlight All Rights Reserved. Release Date : 12.24.2013. Issue No: DLS-0000039 Rev.5 www.everlight.com
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 the 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.

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