LITE-ON TECHNOLOGY CORPORATION Property of LITE-ON Only FEATURES ＊1.2 inch (30.42 mm) MATRIX HEIGHT ＊LOW POWER REQUIREMENT ＊SINGLE PLANE, WIDE VIEWING ANGLE ＊SOLID STATE RELIABILITY ＊5 X 7 ARRAY WITH X-Y SELECT ＊COMPATIBLE WITH USASCII AND EBCDIC CODES ＊STACKABLE HORIZONTALLY ＊CATEGORIZED FOR LUMINOUS INTENSITY DESCRIPTION The LTP-1557AE-01 is a 1.2 inch (30.42 mm) matrix height 5 X 7 dot matrix display. The device uses RED ORANGE LED chips, (GaAsP epi on GaP substrate). This display has a black face and white dot color. DEVICE PART NO. DESCRIPTION RED ORANGE Cathode Column Anode Row LTP-1557AE-01 PART NO.: LTP-1557AE-01 BNS-OD-C131/A4 PAGE: 1 of 5 LITE-ON TECHNOLOGY CORPORATION 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-1557AE-01 BNS-OD-C131/A4 PAGE: 2 of 5 LITE-ON TECHNOLOGY CORPORATION Property of LITE-ON Only PIN CONNECTION No. 1 ANODE ROW 5 2 ANODE ROW 7 3 CATHODE COLUMN 2 4 CATHODE COLUMN 3 5 6 ANODE ROW 4 CATHODE COLUMN 5 7 ANODE ROW 6 8 ANODE ROW 3 9 ANODE ROW 1 10 CATHODE COLUMN 4 11 CATHODE COLUMN 3 12 13 14 PART NO.: LTP-1557AE-01 BNS-OD-C131/A4 CONNECTION ANODE ROW 4 CATHODE COLUMN 1 ANODE ROW 2 PAGE: 3 of 5 LITE-ON TECHNOLOGY CORPORATION Property of LITE-ON Only ABSOLUTE MAXIMUM RATING PARAMETER MAXIMUM RATING UNIT 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℃ Average Power Dissipation Per Dot ( Frequency 1Khz, 10% duty cycle ) Operating Temperature Range V -35℃ to +85℃ Storage Temperature Range Soldering Conditions:1/16 inch below seating plane for 3 seconds at 260℃ * see figure 5 to establish pulsed condition ELECTRICAL / OPTICAL CHARACTERISTICS AT Ta = 25oC PARAMETER SYMBOL MIN. TYP. MAX. UNIT TEST CONDITION Average Luminous Intensity IV 1780 4000 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 Ip = 80mA 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-1557AE-01 BNS-OD-C131/A4 PAGE: 4 of 5 LITE-ON TECHNOLOGY CORPORATION Property of LITE-ON Only TYPICAL ELECTRICAL / OPTICAL CHARACTERISTIC CURVES (25oC Ambient Temperature Unless Otherwise Noted) PART NO.: LTP-1557AE-01 BNS-OD-C131/A4 PAGE: 5 of 5