LED Light Bars
Technical Data
Features
Large Bright, Uniform Light
Emitting Areas
Choice of Colors
Categorized for Light Output
Yellow and Green
Categorized for Dominant
Wavelength
Excellent ON-OFF Contrast
X-Y Stackable
Flush Mountable
Can be Used with Panel and
Legend Mounts
• Light Emitting Surface
Suitable for Legend
Attachment per Application
Note 1012
HLCP-X100 Series Designed
for Low Current Operation
Bicolor Devices Available
Applications
Business Machine
Message Annunciators
Telecommunications
Indicators
Front Panel Process Status
Indicators
PC Board Identifiers
Bar Graphs
Description
The HLCP-X100 and HLMP-2XXX
series light bars are rectangular
light sources designed for a
variety of applications where a
large bright source of light is
required. These light bars are
configured in single-in-line and
dual-in-line packages that contain
either single or segmented light
emitting areas. The AlGaAs Red
HLCP-X100 series LEDs use
double heterojunction AlGaAs on
a GaAs substrate. The HER
HLMP-2300/2600 and Yellow
HLMP-2400/2700 series LEDs
have their p-n junctions diffused
into a GaAsP epitaxial layer on a
GaP substrate. The Green HLMP-
2500/2800 series LEDs use a
liquid phase GaP epitaxial layer
on a GaP substrate. The bicolor
HLMP-2900 series use a
combination of HER/Yellow or
HER/Green LEDs.
HLCP-A100, -B100, -C100,
-D100, -E100, -F100, -G100,
-H100
HLMP-2300, -2350, -2400,
-2450, -2500, -2550, -2600,
-2620, -2635, -2655, -2670,
-2685, -2700, -2720, -2735,
-2755, -2770, -2785, -2800,
-2820, -2835, -2855, -2870,
-2885, -2950, -2965
2
Selection Guide
Light Bar Part Number Corresponding
Size of Package Panel and
HLCP- HLMP- Light Emitting Areas Outline Legend Mount
Part No. HLMP-
AlGaAs HER Yellow Green
A100 2300 2400 2500 8.89 mm x 3.81 mm 1 A 2599
(.350 in. x .150 in.)
B100 2350 2450 2550 19.05 mm x 3.81 mm 1 B 2598
(.750 in. x .150 in.)
D100 2600 2700 2800 8.89 mm x 3.81 mm 2 D 2898
(.350 in. x .150 in.)
E100 2620 2720 2820 8.89 mm x 3.81 mm 4 E 2899
(.350 in. x .150 in.)
F100 2635 2735 2835 3.81 mm x 19.05 mm 2 F 2899
(.150 in. x .750 in.)
C100 2655 2755 2855 8.89 mm x 8.89 mm 1 C 2898
(.350 in. x .350 in.)
G100 2670 2770 2870 8.89 mm x 8.89 mm 2 G 2899
(.350 in. x .350 in.)
H100 2685 2785 2885 8.89 mm x 19.05 mm 1 H 2899
(.350 in. x .750 in.)
2950 2950 8.89 mm x 8.89 mm Bicolor I 2898
(.350 in. x .350 in.)
2965 2965 8.89 mm x 8.89 mm Bicolor I 2898
(.350 in. x .350 in.)
Number
of
Light
Emitting
Areas
3
Package Dimensions
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES). TOLERANCES ±0.25 mm (±0.010 IN.) UNLESS OTHERWISE INDICATED.
2. FOR YELLOW AND GREEN DEVICES ONLY.
4
Internal Circuit Diagrams
I
5
Absolute Maximum Ratings
HER Yellow Green
AlGaAs Red HLMP-2300/ HLMP-2400/ HLMP-2500/
Parameter HLCP-X100 2600/29XX 2700/2950 2800/2965
Series Series Series Series
Average Power Dissipated per LED Chip 37 mW[1] 135 mW[2] 85 mW[3] 135 mW[2]
Peak Forward Current per LED Chip 45 mA[4] 90 mA[5] 60 mA[5] 90 mA[5]
Average Forward Current per LED Chip 15 mA 25 mA 20 mA 25 mA
DC Forward Current per LED Chip 15 mA[1] 30 mA[2] 25 mA[3] 30 mA[2]
Reverse Voltage per LED Chip 5 V 6 V[6]
Operating Temperature Range –20°C to +100°C[7] –40°C to +85°C –20°C to +85°C
Storage Temperature Range –40°C to +85°C
Lead Soldering Temperature 1.6 mm 260°C for 3 seconds[8]
(1/16 inch) Below Seating Plane3
Notes:
1. Derate above 87°C at 1.7 mW/°C per LED chip. For DC operation, derate above 91°C at 0.8 mA/°C.
2. Derate above 25°C at 1.8 mW/°C per LED chip. For DC operation, derate above 50°C at 0.5 mA/°C.
3. Derate above 50°C at 1.8 mW/°C per LED chip. For DC operation, derate above 60°C at 0.5 mA/°C.
4. See Figure 1 to establish pulsed operation. Maximum pulse width is 1.5 mS.
5. See Figure 6 to establish pulsed operation. Maximum pulse width is 2 mS.
6. Does not apply to bicolor parts.
7. For operation below –20°C, contact your local Agilent sales representative.
8. Maximum tolerable component side temperature is 134°C during solder process.
Electrical/Optical Characteristics at TA = 25°C
AlGaAs Red HLCP-X100 Series
Parameter HLCP- Symbol Min. Typ. Max. Units Test Conditions
A100/D100/E100 IV3 7.5 mcd IF = 3 mA
Luminous Intensity
per Lighting Emitting B100/C100/F100/G100 6 15 mcd
Area[1]
H100 12 30 mcd
Peak Wavelength λPEAK 645 nm
Dominant Wavelength[2] λd637 nm
Forward Voltage per LED VF1.8 2.2 V IF = 20 mA
Reverse Breakdown Voltage per LED VR515 V I
R
= 100 µA
Thermal Resistance LED Junction-to-Pin RθJ-PIN 250 °C/W/
LED
6
Parameter HLMP- Symbol Min. Typ. Max. Units Test Conditions
2400/2700/2720 IV6 20 mcd IF = 20 mA
Luminous Intensity
per Lighting Emitting 2450/2735/2755/2770/2950[3] 13 38 mcd
Area[1]
2785 26 70 mcd
Peak Wavelength λPEAK 583 nm
Dominant Wavelength[2] λd585 nm
Forward Voltage per LED VF2.1 2.6 V IF = 20 mA
Reverse Breakdown Voltage per LED[5] VR615 V I
R
= 100 µA
Thermal Resistance LED Junction-to-Pin RθJ-PIN 150 °C/W/
LED
High Efficiency Red HLMP-2300/2600/2900 Series
Parameter HLMP- Symbol Min. Typ. Max. Units Test Conditions
2300/2600/2620 IV6 23 mcd IF = 20 mA
Luminous Intensity
per Lighting Emitting 2350/2635/2655/2670/2950[3] 13 45 mcd
Area[1]
2965[4] 19 45 mcd
2685 22 80 mcd
Peak Wavelength λPEAK 635 nm
Dominant Wavelength[2] λd626 nm
Forward Voltage per LED VF2.0 2.6 V IF = 20 mA
Reverse Breakdown Voltage per LED[5] VR615 V I
R
= 100 µA
Thermal Resistance LED Junction-to-Pin RθJ-PIN 150 °C/W/
LED
Yellow HLMP-2400/2700/2950 Series
7
High Performance Green HLMP-2500/2800/2965 Series
Parameter HLMP- Symbol Min. Typ. Max. Units Test Conditions
2500/2800/2820 IV5 25 mcd IF = 20 mA
Luminous Intensity
per Lighting Emitting 2550/2835/2855/2870 11 50 mcd
Area[1]
2965[4] 25 50 mcd
2885 22 100 mcd
Peak Wavelength λPEAK 565 nm
Dominant Wavelength[2] λd572 nm
Forward Voltage per LED VF2.2 2.6 V IF = 20 mA
Reverse Breakdown Voltage per LED[5] VR615 V I
R
= 100 µA
Thermal Resistance LED Junction-to-Pin RθJ-PIN 150 °C/W/
LED
Notes:
1. These devices are categorized for luminous intensity. The intensity category is designated by a letter code on the side of the package.
2. The dominant wavelength, λd, is derived from the CIE chromaticity diagram and is the single wavelength which defines the color of the
device. Yellow and Green devices are categorized for dominant wavelength with the color bin designated by a number code on the side
of the package.
3. This is an HER/Yellow bicolor light bar. HER electrical/optical characteristics are shown in the HER table. Yellow electrical/optical
characteristics are shown in the Yellow table.
4. This is an HER/Green bicolor light bar. HER electrical/optical characteristics are shown in the HER table. Green electrical/optical
characteristics are shown in the Green table.
5. Does not apply to HLMP-2950 or HLMP-2965.
8
Figure 1. Maximum Allowable Peak Current vs. Pulse Duration.
Figure 4. Forward Current vs. Forward Voltage. Figure 5. Relative Luminous Intensity vs. DC Forward
Current.
AlGaAs Red
Figure 2. Maximum Allowed DC Current per LED vs.
Ambient Temperature, TJMAX = 110 °C. Figure 3. Relative Efficiency (Luminous Intensity per Unit
Current) vs. Peak LED Current.
9
For a detailed explanation on the use of data sheet information and recommended soldering procedures,
see Application Notes 1005, 1027, and 1031.
HER, Yellow, Green
Figure 9. Forward Current vs. Forward Voltage
Characteristics. Figure 10. Relative Luminous Intensity vs. DC Forward
Current.
Figure 6. Maximum Allowed Peak Current vs. Pulse
Duration.
Figure 7. Maximum Allowable DC Current per LED vs.
Ambient Temperature, TJ MAX = 100°C. Figure 8. Relative Efficiency (Luminous Intensity per Unit
Current) vs. Peak LED Current.
10
IAVG
Iv TIME AVG = ITEST
where:
ITEST = 3 mA for AlGaAs Red
(HLMP-X000 series)
20 mA for HER,
Yellow and Green
(HLMP-2XXX series)
Example:
For HLMP-2735 series
ηIPEAK = 1.18 at IPEAK = 48 mA
12 mA
Iv TIME AVG = 20 mA
= 25 mcd
[]
[]
Electrical
These light bars are composed of
two, four, or eight light emitting
diodes, with the light from each
LED optically scattered to form
an evenly illuminated light
emitting surface.
The anode and cathode of each
LED is brought out by separate
pins. This universal pinout
arrangement allows the LEDs to
be connected in three possible
configurations: parallel, series, or
series parallel. The typical
forward voltage values can be
scaled from Figures 4 and 9.
These values should be used to
calculate the current limiting
resistor value and typical power
consumption. Expected maximum
VF values for driver circuit design
and maximum power dissipation,
may be calculated using the
following VFMAX models:
AlGaAs Red HLCP-X100 series
VFMAX = 1.8 V + IPeak (20 )
For: IPeak 20 mA
VFMAX = 2.0 V + IPeak (10 )
For: 20 mA IPeak 45 mA
HER (HLMP-2300/2600/2900),
Yellow (HLMP-2400/2700/2900)
and Green (HLMP-2500/2800/
2900) series
VFMAX = 1.6 + IPeak (50 )
For: 5 mA IPeak 20 mA
VFMAX = 1.8 + IPeak (40 )
For: IPeak 20 mA
The maximum power dissipation
can be calculated for any pulsed
or DC drive condition. For DC
operation, the maximum power
dissipation is the product of the
maximum forward voltage and the
maximum forward current. For
pulsed operation, the maximum
power dissipation is the product
of the maximum forward voltage
at the peak forward current times
the maximum average forward
current. Maximum allowable
power dissipation for any given
ambient temperature and thermal
resistance (RθJ-A) can be deter-
mined by using Figure 2 or 7. The
solid line in Figure 2 or 7 (RθJ-A of
600/538 C/W) represents a typical
thermal resistance of a device
socketed in a printed circuit
board. The dashed lines represent
achievable thermal resistances
that can be obtained through
improved thermal design. Once
the maximum allowable power
dissipation is determined, the
maximum pulsed or DC forward
current can be calculated.
Optical
Size of Light Surface Area
Emitting
Area Sq. Metres Sq. Feet
8.89 mm x 8.89 mm 67.74 x 10–6 729.16 x 10–6
8.89 mm x 3.81 mm 33.87 x 10–6 364.58 x 10–6
8.89 mm x 19.05 mm 135.48 x 10–6 1458.32 x 10–6
3.81 mm x 19.05 mm 72.85 x 10–6 781.25 x 10–6
The radiation pattern for these
light bar devices is approximately
Lambertian. The luminous
sterance may be calculated using
one of the two following formulas:
Iv (cd)
Lv (cd/m2) =A (m2)
πIv (cd)
Lv (footlamberts) = A (ft2)
Refresh rates of 1 kHz or faster
provide the most efficient
operation resulting in the maxi-
mum possible time average
luminous intensity.
The time average luminous
intensity may be calculated using
the relative efficiency character-
istic of Figure 3 or 8, ηIPEAK, and
adjusted for operating ambient
temperature. The time average
luminous intensity at TA = 25°C is
calculated as follows:
(ηIPEAK) (Iv Data Sheet)
(1.18) (35 mcd)
11
The time average luminous
intensity may be adjusted for
operating ambient temperature by
the following exponential
equation:
Iv (TA) = IV (25°C)e[K (T –25°C)]
Color K
AlGaAs Red –0.0095/°C
HER –0.0131/°C
Yellow –0.0112/°C
Green –0.0104/°C
Example:
Iv (80°C) = (25 mcd)e[-0.0112 (80-25)]
= 14 mcd.
Mechanical
These light bar devices may be
operated in ambient temperatures
above +60°C without derating
when installed in a PC board
configuration that provides a
thermal resistance pin to ambient
value less than 280°C/W/LED. See
Figure 2 or 7 to determine the
maximum allowed thermal
resistance for the PC board,
RθPC-A, which will permit
nonderated operation in a given
ambient temperature.
To optimize device optical
performance, specially developed
plastics are used which restrict
the solvents that may be used for
cleaning. It is recommended that
only mixtures of Freon (F113)
and alcohol be used for vapor
cleaning processes, with an
immersion time in the vapors of
less than two (2) minutes
maximum. Some suggested vapor
cleaning solvents are Freon TE,
Genesolv DES, Arklone A or K. A
60°C (140°F) water cleaning
process may also be used, which
includes a neutralizer rinse (3%
ammonia solution or equivalent),
a surfactant rinse (1% detergent
solution or equivalent), a hot
water rinse and a thorough air
dry. Room temperature cleaning
may be accomplished with Freon
T-E35 or T-P35, Ethanol,
Isopropanol or water with a mild
detergent.
For further information on
soldering LEDs please refer to
Application Note 1027.
A
www.semiconductor.agilent.com
Data subject to change.
Copyright © 1999 Agilent Technologies, Inc.
Obsoletes 5954-8466, 5954-0925,
5954-0937
5962-7197E (11/99)