LED Display Product Data Sheet LTP-12788BKD Spec No.: DS30-2001-118 Effective Date: 05/18/2001 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 ＊1.22 inch (31.0 mm) MATRIX HEIGHT. ＊LOW POWER REQUIREMENT. ＊SINGLE PLANE, WIDE VIEWING ANGLE. ＊SOLID STATE RELIABILITY. ＊8×8 ARRAY WITH X-Y SELECT. ＊COMPATIBLE WITH USASCII AND EBCDIC CODES. ＊STACKABLE HORIZONTALLY. . DESCRIPTION The LTP-12788BKD is a 1.22 inch (31.0 mm) matrix height 8×8 dot matrix display. The AlInGaP hyper red LED chips, which are made from AlInGaP on a non-transparent GaAs substrate. The device has black face and transparent dots. DEVICE PART NO. DESCRIPTION AlInGaP HYPER RED ANODE ROW CATHODE COLUMN LTP-12788BKD PART NO.: LTP-12788BKD 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-12788BKD BNS-OD-C131/A4 PAGE: 2 of 5 LITE-ON ELECTRONICS, INC. Property of Lite-On Only PIN CONNECTION NO CONNECTION NO CONNECTION 1 NO CONNECT 13 ANODE ROW 4 2 CATHODE COLUMN 5 14 CATHODE COLUMN 4 3 ANODE ROW 5 15 NO CONNECT 4 NO CONNECT 16 ANODE ROW 3 5 CATHODE COLUMN 6 17 CATHODE COLUMN 3 6 ANODE ROW 6 18 NO CONNECT 7 NO CONNECT 19 ANODE ROW 2 8 CATHODE COLUMN 7 20 CATHODE COLUMN 2 9 ANODE ROW 7 21 NO CONNECT 10 NO CONNECT 22 ANODE ROW 1 11 CATHODE COLUMN 8 23 CATHODE COLUMN 1 12 ANODE ROW 8 24 NO CONNECT PART NO.: LTP-12788BKD BNS-OD-C131/A4 PAGE: 3 of 5 LITE-ON ELECTRONICS, INC. Property of Lite-On Only ABSOLUTE MAXIMUM RATING AT Ta=25oC PARAMETER AlInGaP HYPER RED UNIT Average Power Dissipation Per Dot 40 mW Peak Forward Current Per Dot 90 mA Average Forward Current Per Dot Derating Linear From 25℃ Per Dot 15 0.2 mA mA/℃ Reverse Voltage Per Dot 5 -35℃ to +85℃ Operating Temperature Range 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=25oC PARAMETER SYMBOL MIN. TYP. MAX. UNIT TEST CONDITION cd Ip=32mA 1/16Duty 650 nm IF=20mA 20 nm IF=20mA Dominant Wavelength d 639 nm IF=20mA Forward Voltage any Dot VF 2.1 2.6 V IF=20mA Reverse Current any Dot IR 100 A VR=5V IV-m 2:1 Average Luminous Intensity IV Peak Emission Wavelength p Spectral Line Half-Width Luminous Intensity Matching Ratio 7139 18000 Ip=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-12788BKD BNS-OD-C131/A4 PAGE: 4 of 5 LITE-ON ELECTRONICS, INC. Property of Lite-On Only TYPICAL ELECTRICAL / OPTICAL CHARACTERISTIC CURVES (25oC Ambient Temperature Unless Otherwise Noted) PART NO.: LTP-12788BKD BNS-OD-C131/A4 PAGE: 5 of 5