LedEngin,
Inc.
High Luminous Efficacy Warm White
Power LedFlex
™
Emitter
LZ4-00WW15
Key Features
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
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.
2
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 V
F
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:
Level
2
Floor Life
Time
Conditions
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.
3
LZ4-00WW15 (02/08)
Luminous Flux Bins
Table 2:
Bin
Code
S
T
U
Minimum
Luminous Flux
(Φ
V
)
@ I
F
= 1000mA
[1,2]
(lm)
356
445
556
Maximum
Luminous Flux
(Φ
V
)
@ I
F
= 1000mA
[1,2]
(lm)
445
556
695
Typical
Luminous Flux
(Φ
V
)
@ I
F
= 1500mA
[2]
(lm)
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
F
G
H
J
Minimum
Forward Voltage (V
F
)
@ I
F
= 1000mA
[1]
(V)
12.80
13.76
14.72
15.68
Maximum
Forward Voltage (V
F
)
@ I
F
= 1000mA
[1]
(V)
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.
4
LZ4-00WW15 (02/08)
Warm White Chromaticity Groups
0.48
2870 K
3225 K
0.46
0.44
3700 K
J2
0.42
0.40
0.38
Planckian locus
K4
K2
J3
y
K3
J4
0.36
0.34
0.32
0.36
0.38
0.40
0.42
x
0.44
0.46
0.48
0.50
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
0.3996
0.4299
0.4374
0.4055
0.3996
0.4299
0.4223
0.3943
0.3889
0.3943
0.4223
0.4147
y
0.4015
0.4165
0.4338
0.4196
0.4015
0.4165
0.3990
0.3853
0.3690
0.3853
0.3990
0.3814
Typical
CCT
(K)
Bin
Code
x
0.4299
0.4562
0.4652
0.4374
0.4299
0.4562
0.4468
0.4223
0.4147
0.4223
0.4468
0.4373
y
0.4165
0.4260
0.4433
0.4338
0.4165
0.4260
0.4077
0.3990
0.3814
0.3990
0.4077
0.3893
Typical
CCT
(K)
K2
3450
J2
3050
K3
3450
J3
3050
K4
3450
J4
3050
LedEngin,
Inc.
5
LZ4-00WW15 (02/08)
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