1
Copyright © 2011, Everlight All Rights Reserved. Release Date : 03.01.2011. Issue No: DLS-0000033 Rev.3
www.everlight.com
Ambient Light Sensor
Surface - Mount
ALS-PT17-51NB/L369/TR8
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT17-51NB/L369/TR8
2
Copyright © 2011, Everlight All Rights Reserved. Release Date : 03.01.2011. Issue No: DLS-0000033 Rev.3
www.everlight.com
Package Dimensions
Unit: mm
Tolerance: ±0.1mm
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT17-51NB/L369/TR8
3
Copyright © 2011, Everlight All Rights Reserved. Release Date : 03.01.2011. Issue No: DLS-0000033 Rev.3
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 7.
Recommended Operating Conditions
Parameter
Symbol
Min.
Max.
Unit
Operating Temperature
Topr
-40
+85
°C
Supply Voltage
Vcc
2.5
5.5
V
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT17-51NB/L369/TR8
4
Copyright © 2011, Everlight All Rights Reserved. Release Date : 03.01.2011. Issue No: DLS-0000033 Rev.3
www.everlight.com
Electrical and Optical Characteristics (Ta=25℃)
Parameter
Symbol
MIN
.
TYP.
MAX.
Unit
Test Condition
Dark Current
ID
---
2
100
nA
VCE=5V, Ev= 0Lux
Light Current
IL1
0.35
0.55
0.7
uA
VCE=5V, Ev= 5Lx
[Note1]
IL2
3.5
5.5
7
uA
VCE=5V, Ev= 50Lx
[Note1]
IL3
35
55
70
uA
VCE=5V, Ev= 500Lx
[Note1]
Saturation Output
Voltage
Vo
---
4.5
---
V
VCE=5V, Ev= 1000Lx
RL=75KΩ [Note2]
Peak Sensitivity
Wavelength
λp
---
580
---
nm
Sensitivity
Wavelength Range
λ
400
---
700
nm
Rise time
tr
---
0.13
---
ms
VCE = 5 V
RL = 7.5KΩ
Fall time
tf
---
0.15
---
ms
Angle of half
Sensitivity
2θ1/2
---
130
---
Deg.
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.
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT17-51NB/L369/TR8
5
Copyright © 2011, Everlight All Rights Reserved. Release Date : 03.01.2011. Issue No: DLS-0000033 Rev.3
www.everlight.com
110 100 1000 10000
1 E -4
1 E -3
0.01
0.1
1
10
Ta = 2 5 ℃, VCE = 5 V
F lu o re s ce n t lig h t R L = 1 K Ω
F lu o re s ce n t lig h t R L = 7 .5 K Ω
F lu o re s ce n t lig h t R L = 7 5 K Ω
O u tp u t v olta ge (V )
Illu m in an ce (L ux )
-40 -2 0 0 20 40 60 80 100
0.1
1
10
100
1000
VCE = 5 V
D ark cu rrent (n A )
T e m p erature (℃)
110 100 1000
0.0 1
0.1
1
10
100
VCE = 5 V
L ig h t c urre nt (u A )
Illu m in an c e (L u x )
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 1000 1100
0.0
0.2
0.4
0.6
0.8
1.0
R ela tive sen sitiv ity
W a ve len gth (n m )
1 2 3 4 5 6 7
0.9 4
0.9 6
0.9 8
1.0 0
1.0 2
1.0 4
1.0 6 EV = 1 00 Lu x
Ta = 25 ℃
R e lativ e lig h t c urre nt
V cc (V )
Fig.5 Light Current vs. Temperature
Fig.6 Dark Current vs. Temperature
-40 -2 0 0 20 40 60 80 100
7.0
7.5
8.0
8.5
9.0
9.5
10 .0
10 .5
11 .0
VCE = 5 V
E v = 100 Lux
L ig h t cu rre nt (u A )
T em p era ture (℃)
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT17-51NB/L369/TR8
6
Copyright © 2011, Everlight All Rights Reserved. Release Date : 03.01.2011. Issue No: DLS-0000033 Rev.3
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Fig.7 Angular response
020 40 60 80 100
0.0
0.2
0.4
0.6
0.8
1.0
1.2
Normalized response
Angle of rotation (Degree)
Converting Photocurrent to Voltage
RL
GND
V out
V cc
CL
Iph
L igh t
S o urc e
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
3. To avoid 60Hz ripple from fluorescent lamps, we suggest that the time constant must be
greater than 0.5 second:
RL × CL ≧ 0.5 (empirical data)
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT17-51NB/L369/TR8
7
Copyright © 2011, Everlight All Rights Reserved. Release Date : 03.01.2011. Issue No: DLS-0000033 Rev.3
www.everlight.com
Recommended method of storage
Reflow Terms: JEDEC Level 3 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 168 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.
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT17-51NB/L369/TR8
8
Copyright © 2011, Everlight All Rights Reserved. Release Date : 03.01.2011. Issue No: DLS-0000033 Rev.3
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.
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT17-51NB/L369/TR8
9
Copyright © 2011, Everlight All Rights Reserved. Release Date : 03.01.2011. Issue No: DLS-0000033 Rev.3
www.everlight.com
Packing Quantity Specification
4000 PCS/ 1 Reel
Label Format
Reel Dimensions
Unit: mm
Tolerance: ±0.1mm
DATASHEET
Ambient Light Sensor
Surface - Mount
ALS-PT17-51NB/L369/TR8
10
Copyright © 2011, Everlight All Rights Reserved. Release Date : 03.01.2011. Issue No: DLS-0000033 Rev.3
www.everlight.com
Tape Dimensions
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.
Unit: mm
Tolerance: ±0.1mm