Data Sheet - OPTEK Technology

Lednium Series Optimal X
(10-watts,120° Viewing Angle)
OVTL09LG3x Series
•
•
•
•
•
Revolutionary 3-dimensional packaged LED source
Robust energy-efficient design with long operating life
Low thermal resistance (2.5°C/W)
Exceptional spatial uniformity
Available in amber, blue, cyan, green, red, cool white,
daylight white, warm white and multi-colored
The OVTL09LG3x Series surface mount provides a 10-Watt energy-efficient 3-dimensional packaged LED
source that offers high luminance, low thermal resistance @ 2.5°C/W and a long operating lifespan. A 120°
viewing angle and three color options of white (cool, daylight, warm) make the Optimal X highly suitable for
general illumination and specialized lighting applications.
Applications
•
•
•
•
•
Automotive exterior and interior lighting
Architectural lighting
Electronic signs and signals
Task lighting
General illumination
Flux Characteristics (IF = 1.05 A, TJ = 25° C)
Part Number
OVTL09LG3A
OVTL09LG3B
OVTL09LG3C
OVTL09LG3G
OVTL09LG3R
OVTL09LG3W
OVTL09LG3WD
OVTL09LG3WW
OVTL09LG3M
RoHS
Viewing Angle
Emitted Color
Amber
Blue
Cyan
Green
120°
Red
Cool White
Daylight White
Warm White
Red/Green/Blue
Typical Luminous
Flux (lm)
305
105
348
522
400
565
522
435
300
Moisture
Lens Color
Water Clear
DO NOT LOOK DIRECTLY
AT LED WITH UNSHIELDED
EYES OR DAMAGE TO
RETINA MAY OCCUR.
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: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 visibleLED@optekinc.com www.optekinc.com
Issue B.2 07/08
Page 1 of 14
Lednium Series Optimal X
OVTL09LG3x Series
Package Drawing:
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue B.2 07/08
Page 2 of 14
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 visibleLED@optekinc.com www.optekinc.com
Lednium Series Optimal X
OVTL09LG3x Series
Absolute Maximum Ratings
DC Forward Current
1.05 A
Peak Pulsed Forward Current
1
3A
Reverse Voltage
15 V
Maximum Allowable Junction Temperature2
130° C
Storage and Operating Temperature
-50° ~ +85 ° C
Notes:
1. Pulse width 1 ms maximum, duty cycle 1/16.
2. Thermal resistance junction to board (TJB) is 2.5° C/W.
Electrical Characteristics (IF = 1.05 A, TJ = 25° C)
PARAMETER
MIN
TYP
MAX
UNITS
Forward Voltage (Amber)
5.7
6.9
7.8
V
Forward Voltage (Blue)
8.7
10.2
11.1
V
Forward Voltage (Green & Cyan)
9.6
10.8
12.0
V
Forward Voltage (Red)
5.7
6.9
7.8
V
Forward Voltage (Red/Green/Blue)
8.5
9.2
9.9
V
Forward Voltage (White)
8.7
10.2
11.1
V
VF Temperature Co-efficient (Amber, Red)
----
-6.0
----
mV/°C
SYMBOL
VF
VF Temperature Co-efficient (White, Blue)
----
-4.8
----
mV/°C
VF Temperature Co-efficient (Green & Cyan)
----
-5.0
----
mV/°C
50% Power Angle
----
120
----
deg
2 Θ½
Optical Characteristics (IF = 1.05 A, TJ = 25° C)
COLOR
DOMINANT WAVELENGTH
SPECTRAL FULL-WIDTHHALF-MAXIMUM
DOMINANT WAVELENGTH
TEMPERATURE DEPENDENCE
MIN
TYP
MAX
Amber
590
595
600
16 nm
0.08 nm/° C
Blue
455
460
465
24 nm
0.05 nm/° C
Cyan
500
505
510
37nm
0.04 nm/° C
Green
510
515
520
40 nm
0.04 nm/° C
Red
620
625
630
18 nm
0.05 nm/° C
Color
Minimum CCT (°K) Maximum CCT (°K)
Cool White
6400
7600
Daylight White
5200
6400
Warm White
3200
3800
Chromaticity Coordinates
Cx
.298
.304
.316
.313
Cy
.314
.297
.318
.340
Cx
.313
.317
.336
.338
Cy
.341
.313
.345
.382
Cx
.388
.403
.440
.419
Cy
.375
.424
.440
.391
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: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 visibleLED@optekinc.com www.optekinc.com
Issue B.2 07/08
Page 3 of 14
Lednium Series Optimal X
OVTL09LG3 Series
Standard Bins
Lamps are sorted to luminous flux (Φ) and forward voltage (VF) bins shown. Orders may be filled with any or all bins
contained as below.
Luminous flux (lm)
OVTL09LG3A (AMBER) (IF = 1.05A)
Dominant Wavelength 590-600nm
V1
350
275
V2
A2V1
A2V2
A2
A1V1
A1V2
A1
200
7.0
6.0
8.0
Forward Voltage (VF)
OVTL09LG3B (BLUE) (IF = 1.05A)
Luminous flux (lm)
Dominant Wavelength 455-465nm
V3
130
110
90
V4
B2V3
B2V4
B2
B1V3
B1V4
B1
9.5
10.5
11.5
Forward Voltage (VF)
Luminous flux (lm)
OVTL09LG3C (CYAN) (IF = 1.05A)
Dominant Wavelength 500-510nm
V3
400
350
300
V4
T2V3
T2V4
T1V3
T1V4
10.5
9.5
T2
T1
11.5
Forward Voltage (VF)
Luminous flux (lm)
OVTL09LG3G (GREEN) (IF = 1.05 mA)
Dominant Wavelength 510-520nm
V3
550
500
450
9.5
V4
G2V3
G2V4
G2
G1V3
G1V4
G1
10.5
11.5
Forward Voltage (VF)
Important Notes:
1. All ranks will be included per delivery, rank ratio will be based on the chip distribution.
2. To designate forward voltage and luminous flux ranks, please contact OPTEK.
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue B.2 07/08
Page 4 of 14
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 visibleLED@optekinc.com www.optekinc.com
Lednium Series Optimal X
OVTL09LG3 Series
Standard Bins
Lamps are sorted to luminous flux (Φ) and forward voltage (VF) bins shown. Orders may be filled with any or all bins
contained as below.
OVTL09LG3R (RED) (IF = 1.05A)
Luminous flux (lm)
Dominant Wavelength 620-630nm
V1
450
400
V2
R2V1
R2V2
R2
R1V1
R1V2
R1
350
7.0
6.0
8.0
Forward Voltage (VF)
OVTL09LG3W (COOL WHITE) (IF = 1.05A)
Luminous flux (lm)
Typical CCT 7000°K (±600°K)
V3
600
550
V4
C2V3
C2V4
C2
C1V3
C1V4
C1
500
10.5
9.5
11.5
Forward Voltage (VF)
OVTL09LG3WD (DAYLIGHT WHITE) (IF = 1.05 A)
Luminous flux (lm)
Typical CCT 5800°K (±600°K)
V3
600
V4
D2V3
D2V4
D2
D1V3
D1V4
D1
550
500
9.5
11.5
10.5
Forward Voltage (VF)
OVTL01LGAWW and OVTL01LGAWWS (WARM WHITE) (IF = 350 mA)
Luminous flux (lm)
Typical CCT 3500°K (±300°K)
500
450
V3
V4
W2V3
W2V4
W2
W1V3
W1V4
W1
400
9.5
10.5
11.5
Forward Voltage (VF)
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: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 visibleLED@optekinc.com www.optekinc.com
Issue B.2 07/08
Page 5 of 14
Lednium Series Optimal X
OVTL09LG3x Series
White Color Bins
0.45
0.43
0.41
WW
0.39
0.37
0.35
WD
0.33
W
0.31
0.29
0.27
0.25
0.25
0.27
0.29
0.31
0.33
0.35
0.37
0.39
Color
CCT
Cool White
7000°K ± 600
WD
Daylight White
5800°K ± 600
WW
Warm White
3500°K ± 300
W
0.41
0.43
0.45
White Color Bins
Green
Cyan
Warm
Daylight
Cool
White
Amber
Red
Blue
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue B.2 07/08
Page 6 of 14
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 visibleLED@optekinc.com www.optekinc.com
Lednium Series Optimal X
OVTL09LG3x Series
Dimming and color mixing for OVTL09LG3M
In the diagram below if each parallel group of three LEDs is a single color the luminous flux produced is a
mixture or R + G + B. To change the emission level of any group (color), and therefore the color of the mixed light,
the current passing through each group must be changed, yet the circuit current remains a constant value. The
means of doing this is to shunt current away from a group while allowing the total circuit current to remain constant.
By controlling the operating point of the three shunt transistors, the operating current of each group of LEDs
can be independently and continuously adjusted. The transistors will turn OFF (short across) each strip individually
when they are ON. The frequency for PWMs should be high to eliminate flickering (more than 20KHz preferred).
Controlling the ON time for each strip will control the average intensity of each strip in order to color-mix the RGB
Turtle.
3
MGSF1N03LT1G
Blue PWN
1
R1 - 10K
2
3
3
2
1
MGSF1N03LT1G
Green PWM
1
R1 - 10K
2
3
Current
Source
MGSF1N03LT1G
Red PWM
1
Common
2
R1 - 10K
Spatial Intensity Distribution
-
-80
-60
-40
-20
0
20
40
60
80
100
Angle (degrees)
Normalized Spectral Intensity vs Angular Displacement
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: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 visibleLED@optekinc.com www.optekinc.com
Issue B.2 07/08
Page 7 of 14
Lednium Series Optimal X
OVTL09LG3x Series
Typical Electro-Optical Characteristics Curves
Input Current = 350 mA, TJ = 25° C
1.0
1.0
Normalized Spectral Intensity
Normalized Spectral Intensity
Input Current = 350 mA, TJ = 25° C
0.8
0.6
0.4
0.2
0.0
380
430
480
530
580
630
680
730
—— Cyan
0.8
0.6
0.4
0.2
0.0
200
780
300
400
700
780
Wavelength (nm)
Wavelength Characteristics
Wavelength Characteristics
Input Current = 350 mA, TJ = 25° C
1.0
0.8
Normalized Spectral Intensity
1.0
Normalized Spectral Intensity
600
Wavelength (nm)
Input Current = 350 mA, TJ = 25° C
—— Cool White
0.6
0.4
0.2
0.0 200
500
—— Daylight White
0.8
0.6
0.4
0.2
300
400
500
600
0.0
700 780
200
Wavelength (nm)
300
400
500
600
700
780
Wavelength (nm)
Wavelength Characteristics
Wavelength Characteristics
Input Current = 350 mA, TJ = 25° C
1.0
500
0.6
Current (I F)
Normalized Spectral Intensity
—— Warm White
0.8
0.4
0.2
400
Amber
300
Green/
Cyan
Red
200
Blue/White
100
0
0.0
200
300
400
500
600
700
Wavelength (nm)
Wavelength Characteristics
1.7
780
2.2
2.7
3.2
3.7
Voltage (V F)
Forward Current vs. Forward Voltage
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue B.2 07/08
Page 8 of 14
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 visibleLED@optekinc.com www.optekinc.com
Lednium Series Optimal X
OVTL09LG3x Series
Typical Electro-Optical Characteristics Curves
Luminosity normalized to TJ = 25° C
% Normalized Luminosity at
Junction Temperature (° C)
0
25
50
75
100
125
OVTLO9LG3A
125
100
85
70
60
45
OVTLO9LG3B
107
100
95
87
75
65
OVTL09LG3C
110
100
95
85
70
65
OVTLO9LG3G
110
100
95
85
70
65
OVTLO9LG3R
135
100
90
75
65
50
OVTLO9LG3W
105
100
93
82
68
60
OVTLO9LG3WD
105
100
93
82
68
60
OVTLO9LG3WW
105
100
93
82
68
60
OVTL09LG3M
110
100
95
85
70
65
Normalized Luminosity
OPTEK
Part
Number
Luminosity normalized to TJ = 25° C
2.0
1.8
1.6
1.4
Red
Amber
Green
Cyan
White
Blue
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-
0
20
40
60
80
100
120
140
160
Junction Temperature °C
Critical Thermal Conditions (To maintain junction temperature (TJ) at 85° C)
WHEN MOUNTED ON:
USE SAFE OPERATING CURRENT OF:
FR4
PC BOARD
IMS
SPREADER
PLATE
3x3x1 in. FIN
EXTRUSION
ACTIVE
HEATSINK
200 mA
500 mA
700 mA
800 mA
1000 mA
NOTE: Refer to OPTEK Application Note #228 on thermal management (www.optekinc.com/pdf/AppNote228.pdf).
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: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 visibleLED@optekinc.com www.optekinc.com
Issue B.2 07/08
Page 9 of 14
Lednium Series Optimal X
OVTL09LG3x Series
OPTEK 10-watt Lednium Markings
Θ
Cathode
OVTL09LG3X
Date Code-Batch Number
MALAYSIA
FRONT
BACK
Packaging: 25 pieces per tray
OPTEK’s Lednium Series Solid State Lighting products package the highest quality LED chips.
Typically, the lumen output of these chips can be as high as 70% after 50,000 hours of operation. This
prediction is based on specific test results and on tests on similar materials, and relies on strict
observation of the design limits and ratings included in this data sheet.
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue B.2 07/08
Page 10 of 14
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 visibleLED@optekinc.com www.optekinc.com
Lednium Series Optimal X
OVTL09LG3x Series
Thermal Resistance
Optek Lednium Series 1-watt Cup – Measured value 2oC/w
(OVTL01LGAxx)
Optek Lednium Series 10-watt Matrix – Measured value 2.5oC/w
(OVTL09LG3xx)
Theory
In line with industry practice, the thermal resistance (Rth) of our LED packages is stated as Rθ j-b, thermal
resistance from the junction region ( j ) of the die, to the board (b) - PCB or other mounting surface. What this
means in a practical sense, is that when operating at rated input (1watt approx.) the junction of a die in a cup product will attain a temperature that is 2oC higher than a reference point on the mounting surface beneath it. In the
case of a 10-watt Matrix product, the maximum temperature difference between any junction and the reference
point is 25oC (2.5oC/w x 10w). The thermal path thus quantified is a composite of a number of thermally resistive
elements in a series and or parallel configuration, but lumped together into a single parameter for convenience.
For an end user of LED products then, this constant allows the junction temperature to be determined by a
simple measurement of the temperature of the mounting surface. Optek recommends that the design value of sustained die junction temperature be limited to 80oC. In an ambient temperature of 25oC, the board temperature of a
10-watt device must be constrained below 55oC to comply with this recommendation, and for a 1-watt cup the board
can theoretically operate at up to 78oC.
From the diagram above it can be seen that the heat generated in the junction region follows a somewhat
serial conductive path through the package to the major radiating surface – which in this example is a single sided
PCB. Some additional radiation may occur directly from the upper surface of the package (not shown). This would
be conducted upward from the die surface through the transparent encapsulating material to the package surface
and be radiated from there. To all practical purposes this is a very minor effect. The polymer encapsulants in normal
use are poor conductors of heat.
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: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 visibleLED@optekinc.com www.optekinc.com
Issue B.2 07/08
Page 11 of 14
Lednium Series Optimal X
OVTL09LG3x Series
Typical elements in the conducting path and corresponding nominal thermal conductivities are:
Elements
w/mK
Epilayers
GaN/InGaN
150
Substrate
Sapphire
50
Die attach material
Conductive epoxy
10
Package
Silver plated copper
Solder
Solder (Sn/Ag/Cu)
Copper cladding
Copper
350
35
300
Note : Thermal conductivity is a physical constant. For the materials above, the respective contribution each makes
to the overall thermal resistance (Rθ j-b) is a function of the thickness of each material layer, and the surface area.
Thermal Conductivity (TC) is defined to be the heat conducted in time (t), through thickness (T) in a direction normal
to a surface area (A), due to a temperature difference (δT).
Therefore
TC= q/t x {T/[A x δT]}
and
δT = [Q x T]/[A x TC]
where δT = Temp. difference (K)
Q = Power (w)
A = Surface area (m2)
T = layer thickness (m)
TC = Thermal Conductivity (w/mK)
Theoretical Calculation (for 1 watt dissipated in a cup product via a single 40mil die)
GaN
Thickness approx 10 x 10-6
Area 10-6
= 1 x 10x10-6/ 10-6 x 150
= 0.07 K
Substrate
T = 60 x 10-6
= 1 x 60x10-6/ 10-6 x 50
= 1.2 K
Die attach
T = 20 x 10-6
A = 2 x 10-6
= 1 x 20x10-6 / 2x10-6 x 10
=1
Package
T = 0.4x10-3
A = 6x10-6
= 1 x 0.4x10-3/ 6x10-6 x 350
= 0.19
Solder
T = 60x10-6
A = 6x10-6
= 1 x 60x10-6/6x10-6 x 25
= 0.4
Total Calculated δT = 2.86K
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue B.2 07/08
Page 12 of 14
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 visibleLED@optekinc.com www.optekinc.com
Lednium Series Optimal X
OVTL09LG3x Series
Power input is 1 watt; however, some power is converted into light energy. Assuming this is of the order of
200mw, the adjusted value of δT is 2.29K. The calculation now assumes that all of the dissipation, 800mw of heat,
is conducted along the thermal path, thereby ignoring any conduction and subsequent radiation that is not directionally normal to the surfaces considered, ie: conduction through the encapsulant material vertically away from the
board, and conduction horizontally away from the heat source. The calculation also assumes that there is no contribution to thermal resistance at the boundaries between material layers. In practice it is improbable that perfect
transfer will occur at these transition regions, even though the bonding between layers in this example are of high
quality. In general, the calculation indicates that the measurements below are of the order of magnitude that can be
expected.
The alternate matrix product range is of a much more complicated thermal design, which does not lend itself to a simple theoretical calculation similar to that shown above. There are multiple incident heat sources, parallel
heat conduction paths, and significantly larger surface area for stray radiation, eg. Cup above has a surface area
available for stray radiation of approximately, 25mm2 per watt of input power. A 10-watt matrix product has approximately 92.5mm2 of exposed surface per input watt.
Measurements
The key to an accurate measurement of thermal resistance is to obtain a reliable value for the junction temperature (Tj). Since the die itself is, and must be, encapsulated during testing, and the junction is contained within
the structure of the die, direct measurement of the junction temperature by normal means is not possible.
Two methods of non-contact thermography are available, both of which rely on emitted infrared detection.
Infrared imagery by calibrated radiograph is a possibility; however, in the instance of a cup product only a
small value of δT is expected which makes accurate estimation of the actual temperature gradient difficult using colorimetry.
The alternative measurement type is digital infrared thermography. This means there is an inherent uncertainty in the calculation algorithm, which sometimes gives results considered unacceptably inaccurate. In this instance absolute accuracy is of secondary importance because the value to be determined is a temperature difference (δT) which requires only relative values – any error in a first reading will also be present in subsequent readings that are about the same value. The difference between readings is accurate.
The other significant drawback to infrared thermometers is a limitation to minimizing the spot size over
which the measurement is made. This poses a difficulty for small assemblies like an LED cup, and in particular the
added complication that the calculated temperature is an average value for the area being interrogated further complicates the issue. Another concern is sometimes raised about the ability of this type of instrument to detect a
heated surface beyond the closest transparent radiating surface. This is a significant issue for far field measurements; however, it is simple to demonstrate that this does not hold true for the near field, and particularly when the
incident beam has a known focal length.
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: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 visibleLED@optekinc.com www.optekinc.com
Issue B.2 07/08
Page 13 of 14
Lednium Series Optimal X
OVTL09LG3x Series
Measurement
Instrument: IR Thermometer
Auto ranging: -100 to 1200oC
Spot size 3mm D.
Focus 25.4mm
Optimal I Product
Input 350mA at 3.3V(1watt)
Averaged Test Results
Tj
Tb
δT
32
30.2
1.8
Rth
1.8oC/W
Optimal X Product
Input 1050mA at 10.2V(10.7watts)
Averaged Test Results
Tj
Tb
δT
89
62
27
Rth
2.52°C/W
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue B.2 07/08
Page 14 of 14
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 visibleLED@optekinc.com www.optekinc.com