LedEngin, Inc.
High Luminous Efficacy Warm White
Power LedFlex™ Emitter
LZ4-00WW15
Key Features
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High Luminous Efficacy 15W Warm White LED
Unique package design with ceramic substrate, integrated glass lens and Flex PCB
New industry standard for Lumen Maintenance (> 90% at 100,000 Hours)
Extremely low Thermal Resistance (2.5°C/W)
Isolated thermal path - electrical connections on Flex PCB
Mount directly to heatsink - MCPCB not required
Exceptional spatial color uniformity across radiation pattern
Industry’s highest Luminous Flux density
High ESD protection (> 8 kV HBM)
JEDEC Level 2 Moisture Sensitivity Level
Lead (Pb) free and RoHS compliant
Typical Applications
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General Lighting
Museum Lighting
Retail & Display Lighting
Hospitality Lighting
Accent & Task Lighting
Architectural Detail Lighting
Description
LedEngin’s LZ4-00WW15 Warm White Power LedFlex™ emitter is capable of 15W power
dissipation and provides exceptional luminous flux density. The LZ4-00WW15 offers ultimate
design flexibility with separate electrical and thermal paths. The thermal contact can be
mounted directly to a heatsink, eliminating the requirement for a MCPCB. The Anode and
Cathode contacts are remotely located on the Flex PCB, allowing for connection versatility and
unobstructed access to the optics. LedEngin’s patent-pending thermally insulated phosphor
layer provides for exceptional spatial color uniformity across the radiation pattern and a
consistent CCT over time and temperature. The patent-pending design has unparalleled
thermal and optical performance. The high quality materials used in the package are chosen to
optimize light output and minimize stresses which results in monumental reliability and lumen
maintenance.
Table of Contents
Product Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
IPC/JEDEC Moisture Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Average Lumen Maintenance Projections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Luminous Flux Binning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Forward Voltage Binning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Warm White Chromaticity Binning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Optical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mechanical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Typical Radiation Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
Typical Relative Spectral Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Typical Relative Light Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Typical Relative Light Output over Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Typical Forward Current Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Current Derating Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Company Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
LedEngin, Inc.
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LZ4-00WW15 (02/08)
Product Nomenclature
The LZ Series part number designation is defined as follows:
LZA–BCDEFG-HJKL
Base Part Number
Bin Code
Where:
A – designates the number of LED die in the package (“4” for 15W)
B – designates the package level (“0” for Emitter)
C – designates the radiation pattern (“0” for Lambertian)
D and E – designate the color (“WW” for Warm White: 2870 K < CCT < 3700 K)
F and G – designate the Power (“15” for 15W typical rating)
H – designates the Flux bin (See Table 2)
J and K – designate the CCT bin groups (see Figure 1 and Table 4)
L – designates the VF bin (See Table 3)
Ordering information:
For ordering LedEngin products, please reference the base part number. The base part number
represents any of the luminous flux, chromaticity groups, or forward voltage bins specified in the
binning tables below. For ordering products with special bin selections, please contact a
LedEngin sales representative or authorized distributor.
IPC/JEDEC Moisture Sensitivity Level
Table 1 - IPC/JEDEC J-STD-20 MSL Classification:
Floor Life
Conditions
Level
Time
2
1 Year
≤ 30°C/
60% RH
Soak Requirements
Standard
Accelerated
Time (hrs)
Conditions
Time (hrs)
Conditions
168
+5/-0
85°C/
60% RH
n/a
n/a
Notes for Table 1:
1. The standard soak time is the sum of the default value of 24 hours for the semiconductor manufacturer’s exposure
time (MET) between bake and bag and the floor life of maximum time allowed out of the bag at the end user of
distributor’s facility.
Average Lumen Maintenance Projections
Lumen maintenance generally describes the ability of a lamp to retain its output over time. The
useful lifetime for solid state lighting devices (Power LEDs) is also defined as Lumen
Maintenance, with the percentage of the original light output remaining at a defined time period.
Based on long-term WHTOL testing, LedEngin projects that the LZ Series will deliver, on
average, 90% Lumen Maintenance at 100,000 hours of operation at a forward current of
1000 mA. This projection is based on constant current operation with junction temperature
maintained at or below 125°C.
LedEngin, Inc.
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LZ4-00WW15 (02/08)
Luminous Flux Bins
Table 2:
Bin
Code
Minimum
Luminous Flux (ΦV)
@ IF = 1000mA [1,2]
(lm)
Maximum
Luminous Flux (ΦV)
@ IF = 1000mA [1,2]
(lm)
Typical
Luminous Flux (ΦV)
@ IF = 1500mA [2]
(lm)
S
T
U
356
445
556
445
556
695
500
630
790
Notes for Table 2:
1. Luminous flux performance guaranteed within published operating conditions. LedEngin maintains a tolerance of
± 10% on flux measurements.
2. Future products will have even higher levels of luminous flux performance. Contact LedEngin Sales for updated
information.
Forward Voltage Bins
Table 3:
Bin
Code
Minimum
Forward Voltage (VF)
@ IF = 1000mA [1]
(V)
Maximum
Forward Voltage (VF)
@ IF = 1000mA [1]
(V)
F
G
H
J
12.80
13.76
14.72
15.68
13.76
14.72
15.68
16.64
Notes for Table 3:
1. LedEngin maintains a tolerance of ± 0.04V for forward voltage measurements.
LedEngin, Inc.
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LZ4-00WW15 (02/08)
Warm White Chromaticity Groups
0.48
2870 K
3225 K
0.46
3700 K
0.44
J2
0.42
K2
y
J3
K3
0.40
J4
K4
0.38
Planckian locus
0.36
0.34
0.32
0.36
0.38
0.40
0.42
0.44
0.46
0.48
0.50
x
Figure 1: Standard Chromaticity Groups plotted on excerpt from the CIE 1931 (2°) x-y Chromaticity Diagram.
Coordinates are listed below in Table 3.
Warm White Chromaticity Coordinates
Table 4:
Bin
Code
x
y
K2
0.3996
0.4299
0.4374
0.4055
0.4015
0.4165
0.4338
0.4196
K3
0.3996
0.4299
0.4223
0.3943
0.4015
0.4165
0.3990
0.3853
K4
0.3889
0.3943
0.4223
0.4147
0.3690
0.3853
0.3990
0.3814
LedEngin, Inc.
Typical
CCT
(K)
3450
3450
3450
Bin
Code
x
y
Typical
CCT
(K)
J2
0.4299
0.4562
0.4652
0.4374
0.4165
0.4260
0.4433
0.4338
3050
J3
0.4299
0.4562
0.4468
0.4223
0.4165
0.4260
0.4077
0.3990
3050
J4
0.4147
0.4223
0.4468
0.4373
0.3814
0.3990
0.4077
0.3893
3050
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LZ4-00WW15 (02/08)
Absolute Maximum Ratings
Table 5:
Parameter
DC Forward Current [1]
Peak Pulsed Forward Current [2]
Reverse Voltage
Storage Temperature
Junction Temperature
Soldering Temperature
Symbol
IF
IFP
VR
Tstg
TJ
Tsol
ESD Sensitivity [4]
Value
1500
2000
See Note 3
-40 ~ +150
150
260
> 8,000 V HBM
Class 3B JESD22-A114-D
Unit
mA
mA
V
°C
°C
°C
Notes for Table 5:
1. Maximum DC forward current is determined by the overall thermal resistance and ambient temperature.
Follow the curves in Figure 8 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. LedEngin recommends taking reasonable precautions towards possible ESD damages and handling the LZ4-00WW15
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 6:
Parameter
Symbol
Typical
Unit
Luminous Flux (@ IF = 1000mA)
Luminous Flux (@ IF = 1500mA)
Correlated Color Temperature [1]
Chromaticity Coordinates
Viewing Angle [2]
Total Included Angle [3]
ΦV
ΦV
CCT
x,y
2Θ1/2
Θ0.9V
400
500
3100
0.430, 0.402
105
135
lm
lm
K
Degrees
Degrees
Notes for Table 6:
1. Typical Color Rendering Index (CRI) is 80.
2. Viewing Angle is the off axis angle from emitter centerline where the luminous intensity is ½ of the peak value.
3. Total Included Angle is the total angle that includes 90% of the total luminous flux.
Electrical Characteristics @ TC = 25°C
Table 7:
Parameter
Symbol
Typical
Unit
Forward Voltage (@ IF = 1000mA)
Forward Voltage (@ IF = 1500mA)
Temperature Coefficient
of Forward Voltage
VF
VF
14.5
15.1
V
V
∆VF/∆TJ
-8.2
mV/°C
Thermal Resistance
(Junction to Case)
RΘJ-C
2.5
°C/W
LedEngin, Inc.
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LZ4-00WW15 (02/08)
Mechanical Dimensions (mm)
Figure 2: Package outline drawing.
Notes for Figure 2:
1. Unless otherwise noted, the tolerance = ± 0.20 mm.
2. Solder contact pads on Flex PCB are labeled “+” for Anode and “-” for Cathode.
3. LedEngin recommends using a thermally conductive adhesive when attaching Thermal Contact to a heat sink. Please
contact LedEngin Sales Representative for recommended adhesives.
LedEngin, Inc.
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LZ4-00WW15 (02/08)
Typical Radiation Pattern
100
90
Relative Intensity (%)
80
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 3: Typical representative spatial radiation pattern.
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
380
430
480
530
580
630
680
730
780
830
880
Wavelength (nm)
Figure 4: Relative spectral power vs. wavelength.
LedEngin, Inc.
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LZ4-00WW15 (02/08)
Typical Relative Light Output
140
Relative Light Output (%)
120
100
80
60
40
20
0
0
200
400
600
800
1000
1200
1400
1600
IF - Forward Current (mA)
Figure 5: Typical relative light output vs. forward current @ TC = 25°C.
Typical Relative Light Output over Temperature
120
Relative Light Output (%)
110
100
90
80
70
60
0
20
40
60
80
100
Case Temperature (°C)
Figure 6: Typical relative light output vs. case temperature.
LedEngin, Inc.
9
LZ4-00WW15 (02/08)
Typical Forward Current Characteristics
1800
IF - Forward Current (mA)
1600
1400
1200
1000
800
600
400
200
0
12
12.5
13
13.5
14
14.5
15
15.5
125
150
VF - Forward Voltage (V)
Figure 7: Typical forward current vs. forward voltage @ TC = 25°C.
Current Derating
1600
IF - Maximum Current (mA)
1400
1200
1000
(Rated)
800
600
RΘJ-A = 4.0°C/W
RΘJ-A = 4.5°C/W
RΘJ-A = 5.0°C/W
400
200
0
0
25
50
75
100
Maximum Ambient Temperature (°C)
Figure 8: Maximum forward current vs. ambient temperature based on TJ(MAX) = 150°C.
Notes for Figure 8:
1. RΘJ-C [Junction to Case Thermal Resistance] for the LZ4-00WW15 is typically 2.5°C/W.
2. RΘJ-A [Junction to Ambient Thermal Resistance] = RΘJ-C + RΘC-A [Case to Ambient Thermal Resistance].
LedEngin, Inc.
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LZ4-00WW15 (02/08)
Company Information
The LZ1-00WW15 Power LedFlex™ is developed, manufactured, and marketed by LedEngin,
Inc., located in Santa Clara, CA. LedEngin is a global leader in advanced high-power LED
emitters and light-source modules. LedEngin provides total solutions from 3W to 15W in single
packages with ultra-small footprints in all colors from Cool White, Warm White, Neutral White,
Red, Green Blue, Amber, RGB, RGBA, Dental Blue and UV. LedEngin supports customers to
generate solid-state lighting designs that conserve natural resources. LedEngin is focused on
differentiated Ultra High-Brightness LED solutions for diverse global markets using its patentpending package designs and manufacturing processes. LedEngin offers catalog as well as full
custom solutions to enable flexible system designs for its customers. LedEngin is dedicated to
long-term win-win partnering with its customers and suppliers.
LedEngin reserves the right to make changes to improve performance without notice.
Please contact Sales@ledengin.com or (408) 492-0620 for more information.
LedEngin, Inc.
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LZ4-00WW15 (02/08)