LITE-ON TECHNOLOGY CORPORATION Property of LITE-ON Only FEATURES ＊0.678 inch ( 17.22 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 DESCRIPTION The LTP-7357C is a 0.678 inch (17.22 mm) matrix height 5×7 dot matrix display. This device uses AlGaAs RED LED chips, (AlGaAs epi on GaAs substrate ). The display has gray face and white dots. DEVICE PART NO. DESCRIPTION AlGaAs RED MULTIPLEX ANODE ROW LTP-7357C PART NO.: LTP-7357C BNS-OD-C131/A4 PAGE: 1 of 6 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. PART NO.: LTP-7357C BNS-OD-C131/A4 PAGE: 2 of 6 LITE-ON TECHNOLOGY CORPORATION Property of LITE-ON Only INTERNAL CIRCUIT DIAGRAM PART NO.: LTP-7357C BNS-OD-C131/A4 PAGE: 3 of 6 LITE-ON TECHNOLOGY CORPORATION Property of LITE-ON Only PIN CONNECTION PART NO.: LTP-7357C BNS-OD-C131/A4 No. CONNECTION 1 CATHODE COLUMN 1 2 ANODE ROW 3 3 CATHODE COLUMN 2 4 ANODE ROW 5 5 ANODE ROW 6 6 ANODE ROW 7 7 CATHODE COLUMN 4 8 CATHODE COUUMN 5 9 ANODE ROW 4 10 CATHODE COLUMN 3 11 ANODE ROW 2 12 ANODE ROW 1 PAGE: 4 of 6 LITE-ON TECHNOLOGY CORPORATION Property of LITE-ON Only ABSOLUTE MAXIMUM RATING AT Ta=25oC PARAMETER MAXIMUM RATING UNIT Average Power Dissipation Per Dot 32 mW Peak Forward Current Per Dot (Frequency 1khz, 2% duty cycle) 110 mA Average Forward Current Per Dot Derating Linear from 25℃ Per Dot 13.3 0.18 mA mA/℃ Reverse Voltage Per Dot 5 -35℃ to +85℃ Operating Temperature Range V -35℃ to +85℃ Storage Temperature Range Soldering Conditions : 1/16 inch below seating plane for 3 seconds at 260℃ ELECTRICAL / OPTICAL CHARACTERISTICS AT Ta=25oC PARAMETER SYMBOL MIN. TYP. MAX. UNIT TEST CONDITION 9000 µcd IP=80mA , 1/16Duty λp 660 nm IF=20mA Spectral Line Half-Width ∆λ 35 nm IF=20mA Dominant Wavelength λd 638 nm IF=20mA Forward Voltage Per dot VF Reverse Current Per dot Average Luminous Intensity IV Peak Emission Wavelength Luminous Intensity Matching Ratio 5000 1.8 2.4 V IF=20mA 2.0 3.1 V IF=80mA IR 100 µA VR=5V IV-m 1.8:1 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-7357C BNS-OD-C131/A4 PAGE: 5 of 6 LITE-ON TECHNOLOGY CORPORATION Property of LITE-ON Only TYPICAL ELECTRICAL / OPTICAL CHARACTERISTIC CURVES (25oC Ambient Temperature Unless Otherwise Noted) PART NO.: LTP-7357C BNS-OD-C131/A4 PAGE: 6 of 6