OPTEK OPB608 Reflective object sensor Datasheet

Reflective Object Sensor
Optek Technology
OPB608A/B/C, OPB608R, OPB608V
•
•
•
•
•
Phototransistor Output
Unfocused for sensing diffuse surface
Low Cost Plastic Housing
Enhanced signal to noise ratio
Reduced ambient light sensitivity
The OPB608 is a reflective switch that consist of an infrared emitting device (LED or VCSEL) and an NPN silicon phototransistor mounted
“side-by-side” on a parallel axis in a black opaque plastic housing. Both the emitting device and phototransistor are encapsulated in a visible
filtering epoxy except the OPB608R. The phototransistor responds to radiation from the emitter only when a reflective object passes within its
field of view. The phototransistor has enhanced low current roll off to improve the contrast ratio and immunity to background irradiance. The
LED versions are designed for near field applications with the VCSEL version being designed for longer distances.
The OPB608A/B/C devices are designed for applications with reflective distances between 0.050” and 0.375” and when the light pattern is not
to be seen by the human eye except for the OPB608R. By utilizing the night enhancement function of a camera, the near infrared light pattern
can be seen. This allows the user to see the pattern shining on the reflective object.
The OPB608R device is designed for applications with reflective distances between 0.050” and 0.300” and when the light pattern is to be seen
by the human eye. The efficiency of the sensor is lower for optical wavelengths in the visible range thus reducing the distance that can be
used.
The OPB608V device is designed for applications with reflective distances between 0.050” and 1.5” and when the light pattern is not to be seen
by the human eye. By utilizing the night enhancement function of a camera, the near infrared light pattern can be seen. This allows the user to
see the pattern shining on the reflective object.
Reflective distances are dependent upon the drive current for the light emitting device, the wavelength of the light source, and the type of reflective material, therefore each application should be checked for the ability to meet each application.
Ordering Information
OPB608A—880nm LED, IC(ON) 2.0 mA min.
OPB608B—880nm LED, IC(ON) 1.0 mA min, 4.0 mA max.
OPB608C—880nm LED, IC(ON) 0.5 mA min
OPB608R—660nm LED, IC(ON) 1.0 mA min, 6.0 mA max.
OPB608V—850nm VCSEL, IC(ON) 5.0 mA min.
Additional laser safety information can be found
on the Optek website. See application #221.
Classification is not marked on the device due to
space limitations. See package outline for
centerline of optical radiance. Operating devices beyond maximum rating may cause devices to exceed rated classification
Optek reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com
A subsidiary of
TT electronics plc
Issue A 06.04
Reflective Object Sensor
OPB608A, OPB608B, OPB608C, OPB608R, OPB608V
Optek Technology
Absolute Maximum Ratings
TA = 25o C unless otherwise noted
Storage and Operating Temperature
-40° C to +85° C
Lead Soldering Temperature (1/16” (1.6mm) from case for 5 seconds with soldering iron)
260° C (1)
Infrared-LED (880nm) (OPB608A, OPB608B, OPB608C)
Forward DC Current
50 mA
Peak Forward Current (1µs pulse width, 300 pps)
3.0 A
Reverse DC voltage
2.0 V
Power Dissipation
75 mW
(3)
Visible Red-LED (660nm) (OPB608R)
Forward DC Current
50 mA
Reverse DC voltage
5.0 V
Power Dissipation
100 mW
(3)
Infrared-VCSEL (850nm) (OPB608V)
Forward DC Current
30 mA
Reverse DC voltage
5.0 V
Power Dissipation
75 mW
(3)
Phototransistor
Collector-Emitter Voltage
30 V
Emitter Reverse Current
10 mA
Collector DC Current
25 mA
Power Dissipation
100 mW
(3)
Notes:
(1) RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering.
(2) Methanol or isopropanol are recommended as cleaning agents. The plastic housing is soluble in chlorinated hydrocarbons and keytones.
(3) Derate Linearly 1.6 mW/°C above 25°C.
OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com
Issue A 06.04
Page 2 of 9
Reflective Object Sensor
OPB608A, OPB608B, OPB608C, OPB608R, OPB608V
Optek Technology
Electrical Characteristics (TA = 25°C unless otherwise noted)
SYMBOL
PARAMETER
MIN
Typ.
MAX
UNITS
CONDITIONS
Infrared-LED (880nm)
VF
Forward Voltage
—
1.7
V
IF = 20 mA
IR
Reverse Current
—
100
µA
VR = 2.0 V
2.5
V
IF = 20 mA
V
IR = 10.0 µA
Visible Red-LED (650nm)
VF
Forward Voltage
—
1.9
VR
Reverse Voltage
5.0
VF
Forward Voltage
—
2.15
V
IF = 12 mA
IR
Reverse Current
—
30
nA
VR = 5 V
ITH
Threshold Current
2.0
5.5
mA
θ
Beam Divergence
Infrared VCSEL (850)
12
Deg.
IF = 12 mA
Phototransistor
VBR/CEO
Collector Emitter Breakdown Voltage
30
—
V
IC = 100 µA
IECO
Emitter Collector Reverse Current
—
100
µA
VEC = 0.4 Volts
ICEO
Collector Emitter Dark Current
—
100
nA
VCE = 5.0 V, Ee = ≤ 0.10 µW/cm2,
IF=0
OPB608A
OPB608B
OPB608C
2.0
1.0
0.5
—
4.0
—
mA
mA
mA
OPB608R
1.0
6.0
mA
OPB608V
5.0
—
mA
—
100
nA
Combined
IC(ON)
IC(OFF)
On-State Collector Current
Off-State Collector Current
NOTES:
(1)
(2)
(3)
VCE = 5.0 V, IF = 20 mA
d = 0.110 inch (2.79 mm)(1)(2)
VCE = 5.0 V, IF = 20 mA
No reflective surface
Distance from the measurement surface to reflective surface (see mechanical page outline).
Measured using Eastman Kodak Gray card. The white side of the card uses as a 90% diffuse reflective surface. Reference Eastman
Kodak catalog # E152 7795
All parameters are tested using pulse techniques.
OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com
Issue A 06.04
Page 3 of 9
Reflective Object Sensor
OPB608A, OPB608B, OPB608C, OPB608R, OPB608V
Optek Technology
Collector Current vs Object Distance
100.000
Vce=5 Volts, IF = 20 mA
Standard Test Conditions
Ic - Typical Collector Current - mA
10.000
1.000
OPB608R
OPB608V
OPB608
0.100
0.010
0.001
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
Distance to Reflectave Surface - Inches
Collector Current vs Diode Forward Current
20
Vce = 5 Volts
Standard Test Conditions
18
Ic - Typical Collector Current - mA
16
OPB608R
OPB608V
OPB608
14
12
10
8
6
4
2
0
0
10
20
30
40
50
IF - Forward Current - mA
OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com
Issue A 06.04
Page 4 of 9
Reflective Object Sensor
OPB608A, OPB608B, OPB608C, OPB608R, OPB608V
Optek Technology
Rise and Fall vs Load Resistance
1000
Tr,Tf - Switching Speed - usec
10% Duty Cycle
1 ms Pulse Width
Vce = 5 Volts
Standard Test Conditons
100
10
OPB608R - Tr
OPB608R - Tf
OPB608 - Tr
OPB608 - Tf
OPB608V - Tr
OPB608V - Tf
1
100
1000
10000
RL - Load resistance - Ohms
Normalized Collector Current vs Ambient Temperature
140%
OPB608R
OPB608
OPB608V
Normalized Collector Current - %
120%
100%
80%
60%
Standard Test Conditions
Vce=5 Volts
Normalized to Ta=25 °C
40%
20%
0%
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
Ta - Ambient Temperature - °C
OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com
Issue A 06.04
Page 5 of 9
Reflective Object Sensor
OPB608A, OPB608B, OPB608C, OPB608R, OPB608V
Optek Technology
Reletive Response
100
90
80
70
60
50
40
30
20
10
Laserjet Black
Inkjet Black
0
OPB608V
Copier Black
OPB608
OPB608R
1200
1000
800
600
400
200
Thermal Paper
0
Black Thermal Paper
OPB608
OPB608R
OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com
Issue A 06.04
Page 6 of 9
Reflective Object Sensor
OPB608A, OPB608B, OPB608C, OPB608R, OPB608V
Optek Technology
Reletive Response
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
White 90%
0
OPB608V
Gray 18%
OPB608
OPB608R
6000
5000
4000
3000
2000
Inkjet 20% Black
1000
Laserjet 20% Black
Laser 20% Black
0
Copier 20% Black
OPB608V
OPB608
OPB608R
OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com
Issue A 06.04
Page 7 of 9
Reflective Object Sensor
OPB608A, OPB608B, OPB608C, OPB608R, OPB608V
Optek Technology
Reletive Response
5000
4500
4000
3500
3000
2500
2000
1500
Inkjet Green
1000
Inkjet Yellow
500
Inkjet Cyan
0
Inkjet Magenta
OPB608V
OPB608
OPB608R
3000
2500
2000
1500
1000
500
Silver Tape
0
White Plastic
OPB608V
OPB608
OPB608R
OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com
Issue A 06.04
Page 8 of 9
Reflective Object Sensor
OPB608A, OPB608B, OPB608C, OPB608R, OPB608V
0.200 [5.08]
0.185 [4.70]
Optek Technology
CL
0.200 [5.08]
0.087 [2.21]
0.250 [6.35]
0.125 [3.18]
0.173 [4.39]
0.120 [3.05]
0.100 [2.54]
0.087 [2.21]
Notes:
(1) RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering.
(2) Methanol or isopropanol are recommended as cleaning agents. The plastic housing is soluble in chlorinated hydrocarbons and keytones.
Ordering Information
OPB608A—880nm LED, IC(ON) 2.0 mA min.
OPB608B—880nm LED, IC(ON) 1.0 mA min, 4.0 mA max.
OPB608C—880nm LED, IC(ON) 1.0 mA min
OPB608R—650nm LED, IC(ON) 0.5 mA min, 6.0 mA max.
OPB608V—850nm VCSEL, IC(ON) 5.0 mA min.
OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com
Issue A 06.04
Page 9 of 9
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