LED Display
Product Data Sheet
LTP-2157AKD
Spec No.: DS30-2002-084
Effective Date: 04/03/2002
Revision: -
LITE-ON DCC
RELEASE
BNS-OD-FC001/A4
LITE-ON Technology Corp. / Optoelectronics
No.90,Chien 1 Road, Chung Ho, New Taipei City 23585, Taiwan, R.O.C.
Tel: 886-2-2222-6181 Fax: 886-2-2221-1948 / 886-2-2221-0660
http://www.liteon.com/opto
LITE-ON ELECTRONICS, INC.
Property of Lite-On Only
FEATURES
＊2.0
inch (50.8 mm) MATRIX HEIGHT.
＊LOW
POWER REQUIREMENT.
＊EXCELLENT
CHARACTERS APPEARANCE..
＊HIGH
BRIGHTNESS & HIGH CONTRAST.
＊5×7
ARRAY WITH X-Y SELECT.
＊HIGH
BRIGHTNESS & HIGH CONTRAST.
＊SOLID
STATE RELIABILITY.
DESCRIPTION
The LTP-2157AKD is a 2.0 inch (50.8 mm) matrix height 5×7
dot matrix display. AlInGaP Hyper Red LED chips, which are
made from AlInGaP on a non-transparent GaAs substrate, and has
a gray face and white dot color.
DEVICE
PART NO.
AlInGaP Hyper Red
LTP-2157AKD
DESCRIPTION
CATHODE COLUMN
ANODE ROW
PART NO.: LTP-2157AKD
BNS-OD-C131/A4
PAGE:
1 of 5
LITE-ON ELECTRONICS, INC.
Property of Lite-On Only
PACKAGE DIMENSIONS
NOTES: All dimensions are in millimeters. Tolerances are
0.25 mm (0.01“) unless otherwise noted.
INTERNAL CIRCUIT DIAGRAM
PART NO.: LTP-2157AKD
BNS-OD-C131/A4
PAGE:
2 of 5
LITE-ON ELECTRONICS, INC.
Property of Lite-On Only
PIN CONNECTION
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CONNECTION
ANODE ROW
ANODE ROW
5
7
CATHODE COLUMN 2
CATHODE COLUMN 3*1
ANODE ROW
4*2
CATHODE COLUMN 5
ANODE ROW
ANODE ROW
ANODE ROW
6
3
1
CATHODE COLUMN 4
CATHODE COLUMN 3*1
ANODE ROW
4*2
CATHODE COLUMN 1
ANODE ROW
2
NOTES : 1. Pin 4 & 11 are internally connected.
2. Pin 5 & 12 are internally connected.
PART NO.: LTP-2157AKD
BNS-OD-C131/A4
PAGE:
3 of 5
LITE-ON ELECTRONICS, INC.
Property of Lite-On Only
ABSOLUTE MAXIMUM RATING AT Ta=25
o
C
PARAMETER
Average Power Dissipation Per Dot
Peak Forward Current Per Dot
Average Forward Current Per Dot
Derating Linear From 25℃ Per Dot
Reverse Voltage Per Dot
Operating Temperature Range
MAXIMUM RATING
40
90
15
0.2
5
-35℃ to +85℃
UNIT
mW
mA
mA
mA/℃
V
-35℃ to +85℃
Storage Temperature Range
Solder Temperature: max 260℃ for max 3sec at 1.6mm[1/16inch] below seating plane.
ELECTRICAL / OPTICAL CHARACTERISTICS AT Ta=25
o
C
PARAMETER
Average Luminous Intensity
Peak Emission Wavelength
Spectral Line Half-Width
Dominant Wavelength
Forward Voltage Per Segment
Reverse Current any Dot
Luminous Intensity Matching Ratio
SYMBOL MIN. TYP. MAX. UNIT TEST CONDITION
I
V
p
d
V
F
I
R
I
V
-m
1650 3500
650
20
639
2.1
2.3
2.6
2.8
2:1
cd
nm
nm
nm
V
A
I
p
=32mA
1/16Duty
I
F
=20mA
I
F
=20mA
I
F
=20mA
I
F
=20mA
V
R
=5V
I
p
=32mA
1/16Duty
Note: Luminous intensity is measured with a light sensor and filter combination that
approximates the CIE (Commision Internationale De L’Eclairage) eye-response curve.
PART NO.: LTP-2157AKD
BNS-OD-C131/A4
PAGE:
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详细参数
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