LITE-ON ELECTRONICS, INC. Property of Lite-On Only FEATURES ＊2.0 inch (50.8 mm) MATRIX HEIGHT. ＊LOW POWER REQUIREMENT. ＊SINGLE PLANE, WIDE VIEWING ANGLE. ＊SOLID STATE RELIABILITY. ＊5×7 ARRAY WITH X-Y SELECT. ＊COMPATIBLE WITH USASCII AND EBCDIC CODES. ＊STACKABLE HORIZONTALLY. ＊CATEGORIZED FOR LUMINOUS INTENSITY. ＊LEAD-FREE PACKAGE (ACCORDING TO ROHS) DESCRIPTION The LTP-2157AE-RC is a 2.0 inch (50.8 mm) matrix height 5×7 dot matrix display.This device utilizes Red Orange LED chips, which are made from GaAsP on GaP substrate, and has a gray face and white dot color. DEVICE PART NO. DESCRIPTION Red Orange CATHODE COLUMN ANODE ROW LTP-2157AE-RC PART NO.: LTP-2157AE-RC BNS-OD-C131/A4 PAGE: 1 of 5 LITE-ON ELECTRONICS, INC. Property of Lite-On Only PACKAGE DIMENSIONS NOTES: 1.All dimensions are in millimeters. Tolerance is ± 0.25 mm (0.01“) unless otherwise noted. 2.Pin tip’s shift tolerance is ± 0.25 mm INTERNAL CIRCUIT DIAGRAM PART NO.: LTP-2157AE-RC BNS-OD-C131/A4 PAGE: 2 of 5 LITE-ON ELECTRONICS, INC. Property of Lite-On Only PIN CONNECTION No. CONNECTION 1 ANODE ROW 5 2 ANODE ROW 7 3 CATHODE COLUMN 2 4 CATHODE COLUMN 3*1 5 ANODE ROW 4*2 6 CATHODE COLUMN 5 7 ANODE ROW 6 8 ANODE ROW 3 9 ANODE ROW 1 10 CATHODE COLUMN 4 11 CATHODE COLUMN 3*1 12 ANODE ROW 4*2 13 CATHODE COLUMN 1 14 ANODE ROW 2 NOTES : 1. Pin 4 & 11 are internally connected. 2. Pin 5 & 12 are internally connected. PART NO.: LTP-2157AE-RC BNS-OD-C131/A4 PAGE: 3 of 5 LITE-ON ELECTRONICS, INC. Property of Lite-On Only ABSOLUTE MAXIMUM RATING AT Ta=25oC PARAMETER MAXIMUM RATING UNIT Average Power Dissipation Per Dot 36 mW Peak Forward Current Per Dot 100 mA Average Forward Current Per Dot Derating Linear From 25℃ Per Dot 13 0.17 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. or temperature of unit (during assembly) not over max. temperature rating above ELECTRICAL / OPTICAL CHARACTERISTICS AT Ta=25oC PARAMETER SYMBOL MIN. TYP. MAX. UNIT TEST CONDITION Average Luminous Intensity IV 1780 4800 µcd Ip=80mA 1/16Duty Peak Emission Wavelength λp 630 nm IF=20mA Spectral Line Half-Width ∆λ 40 nm IF=20mA Dominant Wavelength λd 621 nm IF=20mA Forward Voltage any Dot VF Reverse Current any Dot IR 100 IV-m 2:1 Luminous Intensity Matching Ratio 2.0 2.6 2.6 3.4 V µA IF=20mA IF=80mA VR=5V 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. PART NO.: LTP-2157AE-RC 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-2157AE-RC BNS-OD-C131/A4 PAGE: 5 of 5