365nm UV LED Gen 2 Emitter
LZ4-04UV00
Key Features
High flux density 365nm surface mount ceramic package UV LED with integrated flat glass lens
2.2 mm x 2.2 mm Light Emitting Surface (LES) in a 7.0mm x 7.0mm emitter footprint
Ideal for imaging optics with beam angles as narrow as ±3
Very low Thermal Resistance (1.1°C/W)
Electrically neutral thermal path
JEDEC Level 1 for Moisture Sensitivity Level
Lead (Pb) free and RoHS compliant
Reflow solderable (up to 6 cycles)
Emitter available on Star MCPCB (optional)
o
Typical Applications
Curing
Printing
PCB Exposure
Sterilization
Medical
Currency Verification
Fluorescence Microscopy
Inspection of dyes, rodent and animal contamination
Forensics
Description
The LZ4-04UV00 UV LED emitter provides superior radiometric power in the wavelength range specifically required
for applications like curing, printing, sterilization, currency verification, and various medical applications. With a
2.2mm x 2.2mm LES, this package provides exceptional optical power density. The flat glass lens facilitates the use
of imaging optics to produce extreme narrow beam angle, as well as light pipes and other optics. The high quality
materials used in the package are chosen to optimize light output, have excellent UV resistance, and minimize
stresses which results in monumental reliability and radiant flux maintenance.
UV RADIATION
Avoid exposure to the beam
Wear protective eyewear
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Part number options
Base part number
Part number
Description
LZ4-04UV00-xxxx
LZ4 emitter
LZ4-44UV00-xxxx
LZ4 emitter on Standard Star MCPCB
Bin kit option codes
UV, Ultra-Violet (365nm)
Kit number
suffix
Min
flux
Bin
Color Bin Range
Description
0000
Q
U0
Q minimum flux; wavelength U0 bin only
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Radiant Flux Bins
Table 1:
Bin Code
Minimum
Radiant Flux (Φ)
@ IF = 700mA [1,2]
(W)
Maximum
Radiant Flux (Φ)
@ IF = 700mA [1,2]
(W)
Q
2.00
2.40
R
2.40
3.00
S
3.00
3.80
Notes for Table 1:
1.
Radiant flux performance is measured at 10ms pulse, T C = 25°C. LED Engin maintains a tolerance of ± 10% on flux measurements.
Peak Wavelength Bins
Table 2:
Bin Code
Minimum
Peak Wavelength (λP)
@ IF = 700mA [1]
(nm)
Maximum
Peak Wavelength (λP)
@ IF = 700mA [1]
(nm)
U0
365
370
Notes for Table 2:
o
1.
Peak wavelength is measured at 10ms pulse, T C = 25 C. LED Engin maintains a tolerance of ± 2.0nm on peak wavelength measurements.
Forward Voltage Bins
Table 3:
Bin Code
Minimum
Forward Voltage (VF)
@ IF = 700mA [1]
(V)
Maximum
Forward Voltage (VF)
@ IF = 700mA [1]
(V)
0
14.0
18.0
Notes for Table 3:
o
1.
Forward voltage is measured at 10ms pulse, TC = 25 C. LED Engin maintains a tolerance of ± 0.04V for forward voltage measurements.
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Absolute Maximum Ratings
Table 4:
Parameter
DC Forward Current
Symbol
Value
Unit
IF
1000
mA
[1]
Peak Pulsed Forward Current
[2]
IFP
1000
mA
Reverse Voltage
VR
See Note 3
V
Storage Temperature
Tstg
-40 ~ +150
°C
Junction Temperature
TJ
130
°C
Soldering Temperature[4]
Tsol
260
°C
Allowable Reflow Cycles
ESD Sensitivity
6
> 2,000 V HBM
Class 2 JESD22-A114-D
[5]
Notes for Table 4:
1.
Maximum DC forward current is determined by the overall thermal resistance and ambient temperature. Follow the curves in Figure 11 for current derating.
2.
Pulse forward current conditions: Pulse Width ≤ 10msec and Duty Cycle ≤ 10%.
3.
LEDs are not designed to be reverse biased.
4.
Solder conditions per JEDEC 020D. See Reflow Soldering Profile Figure 3.
5.
LED Engin recommends taking reasonable precautions towards possible ESD damages and handling the LZ4-04UV00 in an electrostatic protected area (EPA).
An EPA may be adequately protected by ESD controls as outlined in ANSI/ESD S6.1.
Optical Characteristics @ TC = 25°C
Table 5:
Parameter
Symbol
Typical
Unit
Radiant Flux (@ IF = 700mA)
Φ
3.30
W
Radiant Flux (@ IF = 1000mA)
Φ
4.60
W
Peak Wavelength [1]
λP
365
nm
Viewing Angle [2]
2Θ1/2
110
Degrees
Total Included Angle [3]
Θ0.9V
150
Degrees
Notes for Table 5:
1.
When operating the UV LED, observe IEC 60825-1 class 3B rating. Avoid exposure to the beam.
2.
Viewing Angle is the off axis angle from emitter centerline where the radiometric power is ½ of the peak value.
3.
Total Included Angle is the total angle that includes 90% of the total radiant flux.
Electrical Characteristics @ TC = 25°C
Table 6:
Parameter
Symbol
Typical
Unit
Forward Voltage (@ IF = 700mA)
VF
15.2
V
Temperature Coefficient
of Forward Voltage
ΔVF/ΔTJ
-5.2
mV/°C
Thermal Resistance
(Junction to Case)
RΘJ-C
1.1
°C/W
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
IPC/JEDEC Moisture Sensitivity Level
Table 7 - IPC/JEDEC J-STD-20D.1 MSL Classification:
Soak Requirements
Floor Life
Standard
Accelerated
Level
Time
Conditions
Time (hrs)
Conditions
Time (hrs)
Conditions
1
Unlimited
≤ 30°C/
85% RH
168
+5/-0
85°C/
85% RH
n/a
n/a
Notes for Table 7:
1.
The standard soak time includes a default value of 24 hours for semiconductor manufacturer’s exposure time (MET) between bake and bag and
includes the maximum time allowed out of the bag at the distributor’s facility.
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Mechanical Dimensions (mm)
Pin Out
Pad
Die
1
A
Function
Anode
2
A
Cathode
3
B
Anode
4
B
Cathode
5
C
Anode
6
C
Cathode
7
D
Anode
8
D
Cathode
9 [2]
n/a
Thermal
2
1
3
1.26
8
4
Figure 1: Package outline drawing.
Notes for Figure 1:
1.
Unless otherwise noted, the tolerance = ± 0.20 mm.
2.
Thermal contact, Pad 9, is electrically neutral.
7
6
5
Recommended Solder Pad Layout (mm)
Non-pedestal MCPCB Design
Pedestal MCPCB Design
Figure 2a: Recommended solder pad layout for anode, cathode, and thermal pad for non-pedestal and pedestal design
Note for Figure 2a:
1. Unless otherwise noted, the tolerance = ± 0.20 mm.
2. Pedestal MCPCB allows the emitter thermal slug to be soldered directly to the metal core of the MCPCB. Such MCPCB eliminate the high thermal resistance
dielectric layer that standard MCPCB technologies use in between the emitter thermal slug and the metal core of the MCPCB, thus lowering the overall system
thermal resistance.
3. LED Engin recommends x-ray sample monitoring for solder voids underneath the emitter thermal slug. The total area covered by solder voids should be less
than 20% of the total emitter thermal slug area. Excessive solder voids will increase the emitter to MCPCB thermal resistance and may lead to higher failure
rates due to thermal over stress.
4. MCPCBs designed for other LZ4 emitters are compatible for this emitter.
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Recommended Solder Mask Layout (mm)
Non-pedestal MCPCB Design
Pedestal MCPCB Design
Figure 2b: Recommended solder mask opening for anode, cathode, and thermal pad for non-pedestal and pedestal design
Note for Figure 2b:
1.
Unless otherwise noted, the tolerance = ± 0.20 mm.
Recommended 8mil Stencil Apertures Layout (mm)
Non-pedestal MCPCB Design
Pedestal MCPCB Design
Figure 2c: Recommended solder mask opening for anode, cathode, and thermal pad for non-pedestal and pedestal design
Note for Figure 2c:
1.
Unless otherwise noted, the tolerance = ± 0.20 mm.
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Reflow Soldering Profile
Figure 3: Reflow soldering profile for lead free soldering
Typical Radiation Pattern
100%
90%
80%
Relatiive Intensity
70%
60%
50%
40%
30%
20%
10%
0%
-90 -80 -70 -60 -50 -40 -30 -20 -10
0
10
20
30
40
50
60
70
80
90
Angular Displacement (Degrees)
Figure 4: Typical representative spatial radiation pattern
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Typical Relative Spectral Power Distribution
1
Relative Spectral Power
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
300
325
350
375
400
425
450
Wavelength (nm)
Figure 5: Typical relative spectral power vs. wavelength @ TC = 25°C
Typical Forward Current Characteristics
1200
IF - Forward Current (mA)
1000
800
600
400
200
0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
VF - Forward Voltage (V)
Figure 6: Typical forward current vs. forward voltage @ T C = 25°C
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Typical Normalized Radiant Flux over Current
1.6
Normalized Radiant Flux
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
200
400
600
800
1000
1200
IF - Forward Current (mA)
Figure 7: Typical normalized radiant flux vs. forward current @ T C = 25°C
Typical Normalized Radiant Flux over Temperature
1.4
Normalized Radiant Flux
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
25
50
75
100
TC - Case Temperature (°C)
Figure 8: Typical normalized radiant flux vs. case temperature
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Typical Peak Wavelength Shift over Current
3.00
Peak Wavelength Shift (nm)
2.00
1.00
0.00
-1.00
-2.00
-3.00
0
200
400
600
800
1000
1200
IF - Forward Current (mA)
Figure 9: Typical peak wavelength shift vs. forward current @ Tc = 25°C
Typical Peak Wavelength Shift over Temperature
5.00
Peak Wavelength Shift (nm)
4.00
3.00
2.00
1.00
0.00
-1.00
-2.00
0
25
50
75
100
TC - Case Temperature (°C)
Figure 10: Typical peak wavelength shift vs. case temperature
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Current De-rating
1200
IF - Forward Current (mA)
1000
800
700
(Rated)
600
RΘJA = 4°C/W
400
RΘJA = 5°C/W
RΘJA = 6°C/W
200
0
0
25
50
75
100
125
(TJ(MAX) = 130)
150
TA - Ambient Temperature (°C)
Figure 11: Maximum forward current vs. ambient temperature based on T J(MAX) = 130°C
Notes for Figure 11:
1.
RΘJ-C [Junction to Case Thermal Resistance] for the LZ4-04UV00 is typically 1.1°C/W.
2.
RΘJ-A [Junction to Ambient Thermal Resistance] = RΘJ-C + RΘC-A [Case to Ambient Thermal Resistance].
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Emitter Tape and Reel Specifications (mm)
Figure 12: Emitter carrier tape specifications (mm).
Ø 178mm (SMALL REEL)
Ø 330mm (LARGE REEL)
Figure 13: Emitter reel specifications (mm).
Notes for Figure 13:
1.
Small reel quantity: up to 250 emitters
2.
Large reel quantity: 250-1200 emitters.
3.
Single flux bin and single wavelength bin per reel.
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
LZ4 MCPCB Family
Part number
Type of MCPCB
Diameter
(mm)
LZ4-4xxxxx
1-channel
19.9
Emitter + MCPCB
Typical VF
Thermal Resistance
(V)
(oC/W)
1.1 + 1.1 = 2.2
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15.2
Typical IF
(mA)
700
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
LZ4-4xxxxx
1 channel, Standard Star MCPCB (1x4) Dimensions (mm)
(3.01)
Notes:
Unless otherwise noted, the tolerance = ± 0.2 mm.
Slots in MCPCB are for M3 or #4-40 mounting screws.
LED Engin recommends plastic washers to electrically insulate screws from solder pads and electrical traces.
LED Engin recommends thermal interface material when attaching the MCPCB to a heatsink
The thermal resistance of the MCPCB is: RΘ C-B 1.1°C/W
Components used
MCPCB:
ESD chips:
HT04503
BZX585-C30
(Bergquist)
(NXP, for 4 LED dies in series)
Pad layout
Ch.
1
MCPCB
Pad
1, 2, 3
4, 5
String/die
Function
1/ABCD
Cathode Anode +
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Application Guidelines
MCPCB Assembly Recommendations
A good thermal design requires an efficient heat transfer from the MCPCB to the heat sink. In order to minimize air
gaps in between the MCPCB and the heat sink, it is common practice to use thermal interface materials such as
thermal pastes, thermal pads, phase change materials and thermal epoxies. Each material has its pros and cons
depending on the design. Thermal interface materials are most efficient when the mating surfaces of the MCPCB
and the heat sink are flat and smooth. Rough and uneven surfaces may cause gaps with higher thermal resistances,
increasing the overall thermal resistance of this interface. It is critical that the thermal resistance of the interface is
low, allowing for an efficient heat transfer to the heat sink and keeping MCPCB temperatures low.
When optimizing the thermal performance, attention must also be paid to the amount of stress that is applied on
the MCPCB. Too much stress can cause the ceramic emitter to crack. To relax some of the stress, it is advisable to
use plastic washers between the screw head and the MCPCB and to follow the torque range listed below. For
o
applications where the heat sink temperature can be above 50 C, it is recommended to use high temperature and
rigid plastic washers, such as polycarbonate or glass-filled nylon.
LED Engin recommends the use of the following thermal interface materials:
1.
Bergquist’s Gap Pad 5000S35, 0.020in thick
Part Number: Gap Pad® 5000S35 0.020in/0.508mm
Thickness: 0.020in/0.508mm
Thermal conductivity: 5 W/m-K
Continuous use max temperature: 200°C
Using M3 Screw (or #4 screw), with polycarbonate or glass-filled nylon washer (#4) the
recommended torque range is: 20 to 25 oz-in (1.25 to 1.56 lbf-in or 0.14 to 0.18 N-m)
2.
3M’s Acrylic Interface Pad 5590H
Part number: 5590H @ 0.5mm
Thickness: 0.020in/0.508mm
Thermal conductivity: 3 W/m-K
Continuous use max temperature: 100°C
Using M3 Screw (or #4 screw), with polycarbonate or glass-filled nylon washer (#4) the
recommended torque range is: 20 to 25 oz-in (1.25 to 1.56 lbf-in or 0.14 to 0.18 N-m)
Mechanical Mounting Considerations
The mounting of MCPCB assembly is a critical process step. Excessive mechanical stress build up in the MCPCB can
cause the MCPCB to warp which can lead to emitter substrate cracking and subsequent cracking of the LED dies
LED Engin recommends the following steps to avoid mechanical stress build up in the MCPCB:
o Inspect MCPCB and heat sink for flatness and smoothness.
o Select appropriate torque for mounting screws. Screw torque depends on the MCPCB mounting
method (thermal interface materials, screws, and washer).
o Always use three M3 or #4-40 screws with #4 washers.
o When fastening the three screws, it is recommended to tighten the screws in multiple small
steps. This method avoids building stress by tilting the MCPCB when one screw is tightened in a
single step.
o Always use plastic washers in combinations with the three screws. This avoids high point contact
stress on the screw head to MCPCB interface, in case the screw is not seated perpendicular.
o In designs with non-tapped holes using self-tapping screws, it is common practice to follow a
method of three turns tapping a hole clockwise, followed by half a turn anti-clockwise, until the
appropriate torque is reached.
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Wire Soldering
To ease soldering wire to MCPCB process, it is advised to preheat the MCPCB on a hot plate of 125-150oC.
Subsequently, apply the solder and additional heat from the solder iron will initiate a good solder reflow. It is
recommended to use a solder iron of more than 60W.
It is advised to use lead-free, no-clean solder. For example: SN-96.5 AG-3.0 CU 0.5 #58/275 from Kester (pn:
24-7068-7601)
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About LED Engin
LED Engin, an OSRAM business based in California’s Silicon Valley, develops, manufactures, and sells advanced LED
emitters, optics and light engines to create uncompromised lighting experiences for a wide range of
TM
entertainment, architectural, general lighting and specialty applications. LuxiGen multi-die emitter and
secondary lens combinations reliably deliver industry-leading flux density, upwards of 5000 quality lumens to a
target, in a wide spectrum of colors including whites, tunable whites, multi-color and UV LEDs in a unique patented
TM
compact ceramic package. Our LuxiTune series of tunable white lighting modules leverage our LuxiGen emitters
and lenses to deliver quality, control, freedom and high density tunable white light solutions for a broad range of
new recessed and downlighting applications. The small size, yet remarkably powerful beam output and superior insource color mixing, allows for a previously unobtainable freedom of design wherever high-flux density, directional
light is required. LED Engin is committed to providing products that conserve natural resources and reduce
greenhouse emissions; and reserves the right to make changes to improve performance without notice.
For more information, please contact LEDE-Sales@osram.com or +1 408 922-7200.
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