Data Sheet

Vertical Cavity Surface Emitting
Laser in Pill Package
OPV322
•
•
•
•
•
850nm VCSEL technology
High thermal stability
Low drive current
High output power
Narrow Beam Angle
The OPV322 is a Vertical Cavity Surface Emitting Laser (VCSEL) packaged in a dome lens pill package. VCSEL
offer many advantages in sensing applications when compared to infrared LEDs. These devices require substantially lower drive currents to obtain the same amount of output power as LEDs. This feature allows VCSELs to be
used in low power consumption applications such as battery operated equipment.
The dome lens packaging creates a narrow beam angle from the device. Long distance applications may benefit
from this feature as secondary optics may be eliminated, reducing total system cost. The OPV322 is optically and
spectrally compatible with Optek’s standard detector products such as the OP600 series phototransistors, OP300
series photodarlingtons and the OP900 series photodiodes.
Applications
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•
•
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Non-contact position sensing
Photoelectric sensors
Optical encoders
Light curtains
EMISSION DIRECTION
VCSEL
Additional laser safety information can be
found on the Optek website. See application
bulletin #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
result in hazardous radiation exposure.
1
2
Pb
RoHS
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 sensors@optekinc.com www.optekinc.com
A subsidiary of
TT electronics plc
VCSEL in Pill Package
OPV322
Absolute Maximum Ratings
TA = 25o C unless otherwise noted
Storage Temperature Range
-40° to +100° C
Operating Temperature Range
0° to +85° C
260° C(1)
Soldering Temperature [1/16 inch (1.6mm) from case for 5 sec with soldering iron]
Maximum Forward Peak Current, Continuous
12 mA
Maximum Reverse Voltage
5V
Maximum Forward Current, pulsed (1µs P.W., 10% D.C.)
48 mA
Electrical Characteristics (TA = 25°C unless otherwise noted)
SYMBOL
PARAMETER
MIN
TYP
MAX
UNITS
POT
Total Power Out
mW
IF = 7 mA
ITH
Threshold Current
3.0
mA
Note 2
VF
Forward Voltage
2.2
V
IF = 7 mA
IR
Reverse Current
100
nA
VR = 5 V
RS
Series Resistance
55
ohms
Note 3
η
Slope Efficiency
0.28
mW/mA
Note 4
λ
Wavelength
840
Δλ
Optical Bandwidth
θ
Beam Divergence
1.5
CONDITIONS
20
860
nm
0.85
nm
6
Degrees
FWHM
Δη/ΔT
Temp Coefficient of Slope Efficiency
-0.50
%/°C
(0° - 70°C), Note 4
Δλ/ΔT
Temp Coefficient of Wavelength
0.06
nm/°C
(0° - 70°C)
ΔlTH
Temp Variance of Threshold Current
±1.0
mA
ΔVF/ΔT
Temp Coefficient for Forward Voltage
-2.5
mV/°C
(0° - 70°C), Note 2
(0° - 70°C)
NOTES:
(1) RMA flux is recommended. Solder dwell time can be increased to 10 seconds when flow soldering.
(2) Threshold Current is based on the two line intersection method specified in Telcordia GR-468-Core. Line 1 from 4 mA to 6 mA. Line 2 from 0 mA to 0.5 mA.
(3) Series Resistance is the slope of the Voltage-Current line from 5 to 8 mA.
(4) Slope efficiency, is the slope of the best fit LI line from 5 mA to 8 mA with 0.25mA test intervals.
Normalized Output Power vs.
Forward Current
Typical Angular Output
200%
100%
Normalized Output Power
Relative Output
80%
60%
40%
20%
100%
0%
-90
-60
-30
0
30
60
Normalized at 7mA, 25°C
90
Angular Displacement—Degrees
OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (800) 341-4747 FAX: (972) 323– 2396 sensors@optekinc.com www.optekinc.com
0%
0
2
4
6
8
10
12
Forward Current—mA
Issue 1.2 09.09
Page 2 of 2