APDS-9008
Miniature Surface-Mount Ambient Light Photo Sensor
Data Sheet
Description
The APDS-9008 is a low cost analog-output ambient
light photo sensor in miniature chipLED lead-free surface
mount package. It consists of a spectrally suited photo
sensor, which provides excellent responsivity that is close
to the response of the human eyes, as show in figure 2.
The APDS-9008 is ideal for applications in which the mea-
surement of ambient light is used to control display back-
lighting. Mobile appliances such as the mobile phones
and PDAs that draw heavy current from display backlight-
ing will benefit from incorporating these photo sensor
products in their designs by reducing power consump-
tion significantly.
Features
•
Excellent responsivity
- Close responsivity to the human eye
•
Miniature ChipLED Leadfree surface-mount package
Height – 0.55 mm
Width – 1.60 mm
Depth – 1.50 mm
•
Low sensitivity variation across various light sources
•
Operating temperature : -40°C to 85°C
•
Vcc supply 1.6 to 5.5V
•
Lead-free package, RoHS compliance
•
Output linearity across wide illumination range
•
High output saturation voltage
Application Support Information
The Application Engineering Group is available to assist
you with the application design associated with APDS-
9008 ambient light photo sensor module. You can con-
tact them through your local sales representatives for ad-
ditional details.
Applications
•
Detection of ambient light to control display
backlighting
Mobile devices – Mobile phones, PDAs
Computing devices – Notebooks, Webpads
Consumer devices – TVs, Video Cameras, Digital
Still Camera
•
Automatic Residential and Commercial Lighting
Management
•
Electronic Signs and Signals
Ordering Information
Part Number
APDS-9008-020
Packaging Type
Tape and Reel
Package
6-pins Chipled package
Quantity
2500
Typical Application Circuit
VCC [1]
APDS-9008
OUT [6]
I/O Pins Configuration Table
Pin
1
GND [4]
LOAD
2
3
4
5
Figure 1. Typical application circuit for APDS-9008
6
Symbol
VCC
NC
NC
GND
NC
Iout
Description
VCC
No Connect
No Connect
Ground
No Connect
Out
Absolute Maximum Ratings
For implementations where case to ambient thermal resistance is ≤ 50
°C
/W
Parameter
Storage Temperature
Supply Voltage
Symbol
T
S
V
CC
Min.
-40
0
Max.
85
6
Units
°C
V
Recommended Operating Conditions
Parameter
Operating Temperature
Supply Voltage
Symbol
T
A
V
CC
Min.
-40
1.6
Max.
85
5.5
Units
°C
V
Conditions
CAUTION:
It is advised that normal static precautions be taken in handling and assembly
of this component to prevent damage and/or degradation which may be induced by ESD.
2
Electrical & Optical Specifications (Ta=25
°
C)
Parameter
Supply Current
Photo Current (I)
Photo Current (II)
Dark Current
Light Current Ratio
Rise Time
Fall Time
Settling Time
Peak sensitivity wavelength
Propagation delay
Storage delay
Saturation voltage
Symbol
ICC
I_
PH1
I_
PH2
I_
DARK
I_
PH2
/I_
PH1
Tr
Tf
T
set
λ
Td
Ts
Vsat
Min.
28
Typ.
42
40
44
300
1.1
5
5
10
565
5
5
Max.
52
Units
μA
μA
μA
nA
Conditions
Vcc =1.8V, Lux = 100 (2)
Vcc =1.8V, Lux = 100 (2)
Vcc =1.8V, Lux = 100 (1)
Vcc =1.8V, Lux = 0
Incandescent light / Fluorescent light
ms
ms
ms
nm
ms
ms
V
Rl = 1Kohm, Lux = 100
R1 = 1Kohm, Lux=100
R1=2.4Kohm,Lux=100
Rl = 1Kohm, Lux = 100
R1 = 1Kohm, Lux=100
R1 = 100Kohm, Lux = 100, Vcc=1.8V
1.5
Notes :
1. Illuminance by CIE standard light source (Incandescent lamp)
2. Fluorescence light is used as light source, however, white LED is substituted in a mass production process.
Light Measurement Circuit and Waveforms
I_pulse
Pin 2,3,5: NC
Pin 6:Iout
APDS-9008
Pin 1:Vcc
I_pulse
Pin 4: GND
Vout
Tr
Td
Vcc pulse from pulse generator
Vcc
Ts
Tf
t
Sensor output at load
90 %
Vout
t
Tset
Tset
3
1
0.8
Relative response
0.6
0.4
0.2
0
300
9008 Spectral response
Eye Response
Output Current [A]
450.0E-6
400.0E-6
350.0E-6
300.0E-6
250.0E-6
200.0E-6
150.0E-6
100.0E-6
50.0E-6
000.0E+0
400
500
600
700
Wavelength in nm
800
900
1000
0
100 200 300 400 500 600 700 800 900 1000
LUX
Figure 2. Relative Spectral Response Vs Wavelength
Figure 3. Average Iout Vs Lux (Vcc=1.8v, T=25°C, White LED source)
1.40
1.20
1.00
Relative Iout
Rel IOUT
-20
0
20
40
60
Temperature in Degrees
80
100
0.80
0.60
0.40
0.20
0.00
-40
1.20
1.10
1.00
0.90
0.80
0.70
0.60
0.50
1.8
2.3
2.8
3.3
VCC
Figure 5. Relative Iout Vs Vcc (T=25°C, 100 Lux)
3.8
4.3
4.8
5.3
Figure 4. Relative Iout Vs Temp (Vcc=1.8v, 100 Lux)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
-90
-70
-50
-30
-10
10
30
Angle in Degrees
50
70
90
1.40
1.20
1.00
REL AVG-ICC
0.80
0.60
0.40
0.20
0.00
-40
-20
0
REL Avg-ICC Vs TEMP at 100LUX
20
40
60
Temperature in Degrees
80
100
Figure 6. Relative Iout Vs Angle ( Vcc=1.8V, T=25°C)
Relative Iout response
Figure 7. Relative Average Icc Vs Temp ( Vcc=1.8V, T=25°C, 100 Lux)
4
1.20
1.10
1.00
Rel ICC
1.40E-06
1.20E-06
1.00E-06
IDark
8.00E-07
6.00E-07
4.00E-07
2.00E-07
0.90
0.80
0.70
0.60
0.50
1.8
2.3
2.8
3.3
VCC
3.8
4.3
4.8
5.3
0.00E+00
-40
-20
0
20
40
Temp in Degrees
60
80
100
Figure 8. Relative average Icc Vs Vcc (T=25°C, 100 Lux)
Figure 9. Dark Current Vs Temp (Vcc=1.8V)
2.0
1.6
Vout (V)
R=12k
R=10k
R=8.2k
R=6.8k
R=4.7k
R=1k
0
200
400
LUX
600
800
1000
1.2
0.8
0.4
0.0
Figure 10. General Luminance Vs Typical Output Voltage
(Vcc=1.8V, T=25°C, Light Source = White LED)
5
