UPWLEDxx
HIGH BRIGHTNESS WHITE LED
P
RODUCT
P
REVIEW
KEY FEATURES
WWW .
Microsemi
.C
OM
The UPWLEDxx product incorporates Microsemi’s unique, patented packaging
concept to improve the homogeneous distribution of white light. The Optomite
package has low thermal resistance, <110°C/W. The package gives a broad
luminous emission, >170°. The packaging characteristics lend themselves to
increased life, critical to many white applications.
IMPORTANT:
For the most current data, consult
MICROSEMI’s
website:
http://www.microsemi.com
Low Thermal Resistance
Rugged Optomite 0603 package
High Brightness
No UV bleed through
Broad angular Luminous
Emission
Suited for high reliability
applications
APPLICATIONS
ABSOLUTE MAXIMUM RATINGS AT 25º C
(UNLESS OTHERWISE SPECIFIED)
Parameters
Forward dc Drive Current
Peak Forward Current (non-repetative)
LED Operating Junction Temperature
Reverse Voltage
Power Dissipation @ 30mA
Operating Temperature
Storage Temperature
Electrostatic Discharge
ESD classification
Solder Reflow Peak Temperature (Solder 10”)
Symbol
I
F
I
FP
Tj
V
R
P
D
T
OPR
T
S
ESD
Value
30
100
-40 to +150
8
125
-40 to +125
-45 to +150
1000
Class 2
225
Unit
DC
mA
mA
°C
V
mW
°C
°C
V
°C
Mobile Phone Keypad
Panel, button, switch indicators.
Backlighting
Signage
Signals and Marker Lights
THERMAL CHARACTERISTICS
(UNLESS OTHERWISE SPECIFIED)
Value
Units
Thermal Resistance
Symbol
Junction-to Soldering Point
R
θJS
110
°C/W
NOTE: The “x x “trailer in the part number refers to the intensity bin followed by color
rank. (see table). For operation of these LEDs in pulse mode applications, devices
may be used in conjunction with Micorsemi LX1992LED Drivers.
UPWLEDXX
UPWLEDXX
Anode is the smaller of the two base pads
.
Mount to circuit using 60/40 Pb/Sn or equivalent.
Maximum solder melt exposure temperature is 225°C for 10 seconds.
Copyright
2002
2003-06-03
Microsemi
580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235
Page 1
UPWLEDxx
HIGH BRIGHTNESS WHITE LED
P
RODUCT
P
REVIEW
ELECTRICAL PARAMETERS @ 25°C
WWW .
Microsemi
.C
OM
Characteristic
Radiant Intensity
Luminous Intensity, (Bin
S)
Symbol
I
E
Test Conditions
dc Drive Current = 20mA
dc Drive Current = 20mA
dc Drive Current = 30mA
dc Drive Current = 50mA
Min
180
Typ.
550
200
250
320
240
300
400
275
350
450
488
460
Max
220
Units
µW/sr
Luminous Intensity, (Bin
T)
I
V
Luminous Intensity, (Bin
U)
λ
DOM
λ
PK
dc Drive Current = 20mA
dc Drive Current = 30mA
dc Drive Current = 50mA
dc Drive Current = 20mA
dc Drive Current = 30mA
dc Drive Current = 50mA
Dc Drive Current = 20mA
dc Drive Current = 20mA
220
260
mcd
260
Dominant Wavelength
Peak Wavelength
Color Rank
a
Chrom x
Chrom y
Color Rank
b
Chrom x
Chrom y
Color Rank
c
Chrom x
Chrom y
Color Rank
d
Chrom x
Chrom y
Other color ranks are available upon
request. Consult factory.
Angle Coverage to 50% points
nm
nm
0.32
0.35
0.325
0.36
0.345
0.36
0.365
0.38
0.295
0.31
0.30
0.32
dc Drive Current = 20mA
0.32
0.32
0.34
0.34
0.305
0.33
0.315
0.34
0.33
0.33
0.35
0.35
α1/2
dc Drive Current = 20mA to 50mA
140
Φ
V
typical
500
625
1000
625
850
1300
150
Φ
E
typical
1.75
2.75
3.75
2.25
3.5
4.5
mlm
2.75
4.0
5.0
deg.
Bin (S)
dc Drive Current = 20mA
dc Drive Current = 30mA
dc Drive Current = 50mA
dc Drive Current = 20mA
dc Drive Current = 30mA
dc Drive Current = 50mA
dc Drive Current = 20mA
dc Drive Current = 30mA
dc Drive Current = 50mA
Bin (T)
Luminous Flux,
Φ
V
Radiant Flux,
Φ
E
Bin (U)
Φ
V
Φ
E
mW
800
1300
2000
Forward Voltage
V
F
Reverse Leakage Current
I
R
dc Drive Current = 20mA
dc Drive Current = 30mA
dc Drive Current = 50mA
Reverse Voltage = 5 V dc
3.6
3.9
4.5
3.9
4.2
4.9
10
V
µA
Copyright
2002
2003-06-03
Microsemi
580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235
Page 2
UPWLEDxx
HIGH BRIGHTNESS WHITE LED
P
RODUCT
P
REVIEW
WWW .
Microsemi
.C
OM
500
Luminous Intensity (mcd)
Luminous Intensity vs DC drive current
Luminous Intensity
400
Bin U
Bin T
Bin S
300
200
100
20
30
40
DC drive current (mA)
50
2000
Luminous Flux (mLm)
1750
1500
1250
1000
750
500
20
Luminous Flux vs DC drive current
Luminous Flux
Bin U
Bin T
Bin S
30
40
DC drive current (mA)
50
Copyright
2002
2003-06-03
Microsemi
580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235
Page 3
UPWLEDxx
HIGH BRIGHTNESS WHITE LED
P
RODUCT
P
REVIEW
WWW .
Microsemi
.C
OM
500
Luminous Flux (mLm)
Luminous Flux vs distance to entry point
400
300
200
0
10
20
30
distance (mils)
40
50
Luminous Flux at ID=20mA in mLm as a function of distance in
mils between Optomite top surface and entry point of Light
pipe. (scale as appropriate for bins T and U)
1 10
Thermal Impedance (°C/watt)
3
Thermal Impedance vs Power-On time
100
10
1
0.1
1
10
Power-On time (ms)
100
1 10
3
Steady State Thermal Resistance Junction-to-Optomite base metal ~ 110°C/watt
Steady State Thermal time constant ~ 20ms
Copyright
2002
2003-06-03
Microsemi
580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235
Page 4
UPWLEDxx
HIGH BRIGHTNESS WHITE LED
P
RODUCT
P
REVIEW
WWW .
Microsemi
.C
OM
0.9
Chromaticity Diagram (CIE 1931)
0.8
0.7
0.6
0.5
y
0.4
0.3
0.2
0.1
0
0
0.1
0.2
0.3
0.4
x
0.5
0.6
0.7
0.8
Diamonds indicate center points of color ranks
a
,
b
,
c
and
d
Conversion of 1931 x y coordinates to 1960
u v
coordinates:
u = 4x/(-2x + 12y + 3) , v = 6y/(-2x + 12y +3)
Conversion of 1960
u v
coordinates to 1931
x y
coordinates:
x = 3u/(2u – 8v +4), y = 2v/(2u –8v +4).
Consult factory for optional Intensity and color ranking.
Copyright
2002
2003-06-03
Microsemi
580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235
Page 5
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