9 4 4 Single Color & Multicolor Dot Matrix LED Displays LTP-2344 2844A3 Features Series Package Dimensions 2.0 inch (50.80mm) matrix height. Low power requirement. Single plane, wide viewing angle. Solid state reliability. 4 4 array with X-Y select. Compatible with usascll and ebcdic codes. Stackable horizontally. Choices of two matrix orientation. Easy mounting on P.C. board. Categorized for luminous intensity. Single color displays have the choices of four bright colors-green/yellow/red orange/AlGaAs red. Multicolor displays are applicable to three bright colors : green, red orange and yellow (green and red orange mixed) A. LTP-2344 Description The LTP-2X44 series are 2.0 inch (50.80mm)matrix height 4 4 dot matrix displays. The LTP-2844A 3 are multicolor applicable displays. The multicolor displays have gray face and white dots. The LTP-2344 series are single color displays. The yellow,green and red orange displays have gray face and white dot color. The AlGaAs red devices have red face and red dots. The green series devices utilize LED chipse which are made from GaP on a transparent GaP substrate. The yellow and red orange series devices utilize LED chips which are made from GaAsP on a transparent GaP substrate. The AlGaAs red series devices utilize LED chips which are made from AIGaAs on a non-transparent GaAs substrate. B. LTP-2844A3 Notes : All dimensions are in millimeters(inches). Tolerance : 0.25mm (0.01") unless otherwise noted. Devices Part No. 9-48 Description Package Dimension Internal Circuit Diagram Green Yellow Red Orange AlGaAs Red 2344G 2344Y 2344E 2344C - Anode Row, Cathode Column A A - - - - 2844A3 Anode Row, Cathode Column B B Multi Color Pin Connection Connection A. LTP-2344 B. LTP-2844A3 1 Cathode Column 1 Cathode Column 1 Red Orange 2 Cathode Column 2 Cathode Column 1 Green 3 Cathode Column 3 Cathode Column 2 Red Orange 4 Cathode Column 4 Cathode Column 2 Green 5 Anode Row 1 Cathode Column 3 Red Orange 6 Anode Row 2 Cathode Column 3 Green 7 Anode Row 3 Cathode Column 4 Red Orange 8 Anode Row 4 Cathode Column 4 Green 9 DISPLAYS Pin No. Anode Row 1 Red Orange 10 Anode Row 1 Green 11 Anode Row 2 Red Orange 12 Anode Row 2 Green 13 Anode Row 3 Red Orange 14 Anode Row 3 Green 15 Anode Row 4 Red Orange 16 Anode Row 4 Green Internal Circuit Diagrams A. LTP-2344 B. LTP-2844A3 Absolute Maximum Ratings at Ta=25 Green Yellow Red Orange Average Power Dissipation Per Dot 96 92 Peak Forward Current Per Dot 90 80 11 0.15 8 0.08 15 15 Parameter Average Forward Current Per Dot Derating Linear from 25 Per Dot Reverse Voltage Per Dot AlGaAs Red Unit 96 96 mW 90 110 mA 11 0.15 14 0.19 mA mA/ Operating Temperature Range -35 15 to +85 Storage Temperature Range -35 to +85 15 V Solder Temperature 1/16 Inch Below Seating Plane for 3 Seconds at 260 9-49 Electrical/Optical Characteristics at Ta=25 LTP-2344G/2844A 3 (Green) Parameter Average Luminous Intensity Peak Emission Wavelength Test Condition 11.0 m cd IP=80mA 1/16 Duty 565 nm IF=20mA 30 nm IF=20mA Min. Typ. IV 5.0 P Spectral Line Half-Width Dominant Wavelength Unit Symbol Max. 569 d nm IF=20mA 6.3 7.8 V IF=20mA 9 11.1 V IF=80mA Forward Voltage, any Dot VF Reverse Current, any Dot IR 100 I V-m 2:1 Luminous Intensity Matching Ratio A VR=15V IF=10mA LTP-2344Y Parameter Average Luminous Intensity Peak Emission Wavelength Test Condition 11.0 m cd IP=80mA 1/16 Duty 585 nm IF=20mA 35 nm IF=20mA Min. Typ. IV 5.0 P Spectral Line Half-Width Dominant Wavelength Unit Symbol Max. 588 d nm IF=20mA 6.0 7.8 V IF=20mA 7.8 10.2 V IF=80mA Forward Voltage, any Dot VF Reverse Current, any Dot IR 100 I V-m 2:1 Luminous Intensity Matching Ratio A VR=15V IF=10mA LTP-2344E/2844A 3 (Red Orange) Parameter Average Luminous Intensity Peak Emission Wavelength Test Condition 11.0 m cd IP=80mA 1/16 Duty 630 nm IF=20mA 40 nm IF=20mA Min. Typ. IV 5.0 P Spectral Line Half-Width Dominant Wavelength Unit Symbol Max. 621 d nm IF=20mA 6.0 7.8 V IF=20mA 7.8 10.2 V IF=80mA Forward Voltage, any Dot VF Reverse Current, any Dot IR 100 I V-m 2:1 Luminous Intensity Matching Ratio A VR=15V IF=10mA LTP-2344C Parameter Average Luminous Intensity Peak Emission Wavelength 28 m cd IP=80mA 1/16 Duty 660 nm IF=20mA 35 nm IF=20mA Typ. IV 15.1 P d Max. 638 nm IF=20mA 5.4 7.2 V IF=20mA 6 8.1 V IF=80mA Forward Voltage, and Dot VF Reverse Current, and Chip IR 100 I V-m 2:1 Luminous Intensity Matching Ratio 9-50 Test Condition Min. Spectral Line Half-Width Dominant Wavelength Unit Symbol A VR=15V IF=10mA Note: Luminous intensity is measured with a light sensor and filter combination that approximates the CIE (Commision Internationale De L'Eclairage) eye-response curve. DISPLAYS Typical Electrical/Optical Characteristic Curves (25 Ambient Temperatrue Unless Otherwise Noted) 9-51