LED Light Source
By
Technical Data
Features
•
High Flux Output (170
lumen at T
B
= 50
°
C)
•
Well Defined Spatial
Radiation Pattern:
“Batwing”
•
Colors: Amber and Red
•
High Operating
Temperature: 105
°
C Board
Temperature
•
Superior Moisture
Resistance
•
Automotive Exterior
Lighting
•
General Illumination
•
Railroad Signaling
Equipment
HPWL-MDB1
HPWL-MDA1
HPWL-MLB1
HPWL-MLA1
Description
The LED Light Source is based
on clustered High Flux AlInGaP
LEDs in a series/parallel circuit,
assembled onto a metal core
printed circuit board (MCPCB).
The reliable connections provide
mechanical sturdiness and good
electrical and thermal
conductivity. This component is
designed and manufactured by
LumiLeds Lighting, and sold and
supported by Hewlett-Packard.
Designers who are seeking a
reliable solid state light source
offering a very high luminous
output will experience reduced
design time and enhanced
reliability by this preassembled
LED array. While the LED Light
Source is optimized for use in
traffic signals, its small size and
versatility make it a good choice
for many applications.
New generation Hewlett-Packard
High Flux LED lamps found in
the LED Light Source capitalize
Dominant Wavelength,
λ
D
(nm) Typ.
629
590
[2]
Benefits
•
Highest Luminous Flux per
Surface Area for any LED
Source
•
Radiation Pattern Provides
Uniform Luminance across
Entry Plane of Secondary
Optics
•
Colors Meet Traffic
Signaling Requirements
•
Suitable for Application in
an Outdoor Signaling
Device
on new packaging technology
and large LED chip sizes. These
lamps offer greater efficiency and
reliability at high current than
traditional LEDs.
Built with the same aluminum
indium gallium phosphide
(AlInGaP) LED technology as
Hewlett-Packard’s Precision
Optical Performance lamps,
these products deliver a luminous
efficiency of approximately 18
lumen per watt. Superior
temperature and moisture
resistance result from an
advanced LED package design.
The LED Light Source has a NTC
(Negative Temperature
Coefficient) or thermister to
monitor the board
temperature.
[1]
Total Flux (lm) Typ.
at T
B
= 25
°
C
230
155
230
155
Applications
•
Traffic Signals
•
Flashers and Warning
Lights
•
Barricade Lighting
Device Selection Guide
Part Number
HPWL-MDB1
HPWL-MDA1
HPWL-MLB1
HPWL-MLA1
Color
Red
Amber
Notes:
1. NTC: Siemens Matsushita Components type C620/10k/J. Connector: AMP CT 173977-4.
2. Projected value. Tested typical value to be announced at a later time.
2
Package Dimensions
61.5 mm
1.6 mm
6.4 mm
65.5 mm
LumiLeds
25-0032
NTC
+ LEDS
– LEDS
7.4 mm
Circuit Diagram
℘
NTC
TYPE: C620/10k/J
(10 kΩ @ 25°C)
Absolute Maximum Ratings at T
B
= 105
°
C
[1]
DC Forward Current .................................................................. 1155 mA
Peak Pulsed Forward Current .................................................... 1155 mA
Average Forward Current .......................................................... 750 mA
Reverse Voltage (I
R
= 100
µA)
.................................................. 30 V
LED Junction Temperature ........................................................ 120ºC
Metal Core Printed Circuit Board Temperature ......................... 105ºC
Operating Temperature ............................................................. - 40ºC to + 105ºC
Storage Temperature ................................................................. - 40ºC to +120ºC
Note:
1. T
B
is the temperature of the metal core printed circuit board (MCPCB). This temperature value can
be measured on either side of the board.
3
Electrical Characteristics at T
B
= 50
°
C
[1], [2]
(unless otherwise noted)
Parameter
Forward Voltage
Reverse Voltage
[3]
Speed of Response
Capacitance
Temperature Coefficient
of Forward Voltage
Amber
Red
Thermal Resistance,
Junction to Board
Dynamic Resistance
Symbol
V
F
V
R
τ
S
C
dV
F
/dT
J
-13.2
[4]
-10.8
Rθ
J-B
R
D
2
0.9
5
9
°C/W
Ohms
Measured to back side
of MCPCB
Min.
11
30
Typ.
14.6
-
20
175
Max.
17
-
Units
V
V
ns
pF
mV/°C
Test Conditions
I
F
= 750 mA
I
R
= 100
µA
Exponential Time
Constant, e
-t/τs
V
F
= 100 mV, f=1 MHz
I
F
= 5 mA
25°C
≤
T
J
≤
70°C
Optical Characteristics at T
B
= 50
°
C
[1], [2]
(unless otherwise noted)
Parameter
Dominant Wavelength
Amber
Red
Spectral Halfwidth
Symbol
λ
d
∆λ
1
/
2
Min.
Typ.
590
[4]
629
19
Max.
Units
nm
nm
Test Conditions
I
F
= 750 mA
I
F
= 750 mA
Wavelength Width at
Spectral Distribution
1
/
2
Power Point
T
B
= 50°C (T
B
= 25°C)
Luminous Flux
[5]
HPWL-MDB1
HPWL-MLB1
HPWL-MDA1
HPWL-MLA1
Luminous Efficacy
Amber
Red
Characteristic
Temperature
[6]
Amber
Red
135 (175)
110 (175)
90 (120)
75 (120)
η
V
170 (230)
145 (230)
120 (155)
100 (155)
500
155
210 (275)
175 (275)
145 (185)
120 (185)
lm
lm/W
Emitted Luminous
Power/Emitted Radiant
Power
25°C
≤
T
J
≤
70°C
T
0
65
[4]
95
°C
Notes:
1.
T is the temperature of the metal core printed circuit board (MCPCB). This temperature value can be measured on either side of
B
the board.
2. Board temperature of 50°C is equivalent to an ambient temperature of 25°C, with a power dissipation of 11.25 W (750 mA) and a
thermal resistance of 2.2°C/W from board to ambient.
3. Always protect device against reverse voltage.
4. Projected value. Tested typical value to be announced at a later time.
5. In the United States, HPWL-MDB1 is targeted for a 12 inch traffic signal and HPWL-MDA1 is for an 8 inch traffic signal.
6. Characteristic temperature predicts light output at LED junction temperatures other than 25°C with constant current through the
equation:
– (T
j
– 25°C)
LOP(T
j
)
≅
LOP(25
°
C)
×
exp
T
0
4
1.0
AMBER
RELATIVE INTENSITY
RED
0.5
0
550
600
WAVELENGTH – nm
650
700
Figure 1. Relative Intensity vs. Wavelength.
RELATIVE LUMINOUS FLUX
(N0RMALIZED AT T
B
= 50°C, I
F
= 750 mA)
1200
I
F
– FORWARD CURRENT – mA
200 %
180 %
160 %
140 %
120 %
100 %
80 %
60 %
40 %
20 %
0%
0
200
400
600
800 1000 1200
T
B
= 25°C
T
B
= 50°C
T
B
= 75°C
1000
800
600
400
200
0
-200
0
5
10
15
20
V
F
– FORWARD VOLTAGE – V
I
F
– FORWARD CURRENT (mA)
Figure 2. Forward Current vs. Forward
Voltage.
Figure 3. Relative Luminous Flux vs.
Forward Current for Red. HPML-MDx1
[1]
RELATIVE LUMINOUS FLUX
(N0RMALIZED AT T
B
= 50°C, I
F
= 750 mA)
I
F
– MAXIMUM FORWARD CURRENT (mA)
2
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
200
400
600
800
1000 1200
R
TH
, J_A = 1°C/W
R
TH
, J_A = 3°C/W
R
TH
, J_A = 5°C/W
1400
1200
1000
800
600
400
200
0
0
R
TH
, J_A = 1°C/W
R
TH
, J_A = 3°C/W
R
TH
, J_A = 5°C/W
20
40
60
80
100
120
T
A
– AMBIENT TEMPERATURE (°C)
I
F
– FORWARD CURRENT (mA)
Figure 4. Relative Luminous Flux vs.
Forward Current for Red. HPWL-MDx1
Figure 5. Maximum Forward Current
vs. Ambient Temperature. Derating
Based on T
JMAX
= 120
o
C.
Note:
1.
Relative Luminous Flux vs. Forward Current curve for amber to be determined.
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