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 ＊5×7 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-1557AKTB-P is a 1.2 inch (30.42 mm) matrix height 5× 7 dot matrix displays. This device use InGaN Blue chips (InGaN epi on a non-transparent substrate). The display has a gray face and white dot color. DEVICE PART NO. DESCRIPTION InGaN Blue CATHODE COLUMN ANODE ROW LTP-1557AKTB-P PART NO.: LTP-1557AKTB-P 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. INTERNAL CIRCUIT DIAGRAM PART NO.: LTP-1557AKTB-P BNS-OD-C131/A4 PAGE: 2 of 6 LITE-ON TECHNOLOGY CORPORATION 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 5 ANODE ROW 4 6 CATHODE COLUMN 5 7 ANODE ROW 6 8 ANODE ROW 3 9 ANODE ROW 1 10 CATHODE COLUMN 4 11 CATHODE COLUMN 3 12 ANODE ROW 4 13 CATHODE COLUMN 1 14 ANODE ROW 2 PART NO.: LTP-1557AKTB-P BNS-OD-C131/A4 PAGE: 3 of 6 LITE-ON TECHNOLOGY CORPORATION Property of Lite-On Only ABSOLUTE MAXIMUM RATING PARAMETER MAXIMUM RATING UNIT Power Dissipation Per Segment 76 mW Peak Forward Current Per Segment ( Frequency 1Khz, 10% duty cycle) 100 mA Continuous Forward Current Per Segment 20 mA 0.25 mA/0C 5 V 0 Forward Current Derating from 25 C Reverse Voltage Per Segment *Electrostatic Discharge Threshold(HBM) 300 V 0 Operating Temperature Range -35 C to +85C Storage Temperature Range -350C to +85C Soldering Conditions : 1/16 inch below seating plane for 3 seconds at 2600C * HBM:Human Body Model. Seller gives no other assurances regarding the ability of product to withstand ESD. ELECTRICAL / OPTICAL CHARACTERISTICS AT Ta=25oC PARAMETER SYMBOL MIN. TYP. MAX. UNIT TEST CONDITION Average Luminous Intensity IV Peak Emission Wavelength 14 mcd IF=10mA λp 468 nm IF=20mA Spectral Line Half-Width ∆λ 25 nm IF=20mA Dominant Wavelength λd 470 nm IF=20mA Forward Voltage any Dot VF 4.0 V IF=20mA Reverse Current any Dot IR 100 µA VR=5V IV-m 2:1 Luminous Intensity Matching Ratio (Same Light Area) 8 2.8 3.5 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-1557AKTB-P BNS-OD-C131/A4 PAGE: 4 of 6 LITE-ON TECHNOLOGY CORPORATION Property of Lite-On Only ESD (Electrostatic Discharge) Static Electricity or power surge will damage the LED. Suggestions to prevent ESD damage: Use of a conductive wrist band or anti-electrostatic glove when handling these LEDs. All devices, equipment, and machinery must be properly grounded. Work tables, storage racks, etc. should be properly grounded. Use ion blower to neutralize the static charge which might have built up on surface of the LED’s plastic lens as a result of friction between LEDs during storage and handling. PART NO.: LTP-1557AKTB-P 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-1557AKTB-P BNS-OD-C131/A4 PAGE: 6 of 6