LTP-2157AKR LITEON | Alldatasheet
Document overview
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Technical content
LITE-ON ELECTRONICS, INC. P r o p e r t y of Lite-On Only PART NO.: LTP-2157AKR PAGE: 1 of 5 BNS-OD-C131/A4
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.
DESCRIPTION
The LTP-2157AKR is a 2.0 inch (50.8 mm) matrix height 5 ×7 dot matrix display. This devi ce utilizes AlInGaP Super Red LED chips, which are made from AlInGaP on a non-transparent GaAs substrate and has a gray face and white dot color. DEVICE PART NO. DESCRIPTION AlInAaP Super Red LTP-2157AKR Cathode Column Anode Row
LITE-ON ELECTRONICS, INC. P r o p e r t y of Lite-On Only PART NO.: LTP-2157AKR PAGE: 2 of 5 BNS-OD-C131/A4 PACKAGE DIMENSIONS NOTES: All dimensions are in millimeters. Tolerances are ± 0.25 mm (0.01“) unless otherwise noted. INTERNAL CIRCUIT DIAGRAM
LITE-ON ELECTRONICS, INC. P r o p e r t y of Lite-On Only PART NO.: LTP-2157AKR PAGE: 3 of 5 BNS-OD-C131/A4 PIN CONNECTION No. CONNECTION
1 ANODE ROW 5
2 CATHODE ROW 7
3 ANODE COLUMN 2
4 ANODE COLUMN 3*1
5 CATHODE ROW 4*2
6 ANODE 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.
LITE-ON ELECTRONICS, INC. P r o p e r t y of Lite-On Only PART NO.: LTP-2157AKR PAGE: 4 of 5 BNS-OD-C131/A4 ABSOLUTE MAXIMUM RATING AT Ta=25oC PARAMETER MAXIMUM RATING UNIT Average Power Dissipation Per Dot 70 mW Peak Forward Current Per Dot 90 mA Average Forward Current Per Dot Derating Linear From 25℃ Per Dot 0.2 mA mA/℃ Reverse Voltage Per Dot 5 V Operating Temperature Range -35℃ to +85 ℃ Storage Temperature Range -35℃ to +85 ℃ 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 Average Luminous Intensity I V 1650 3500 µcd I p=32mA 1/16Duty Peak Emission Wavelength λp 639 nm I F=20mA Spectral Line Half-Width ∆λ 20 nm I F=20mA Dominant Wavelength λd 631 nm I F=20mA 2 2.6 I F=20mAForward Voltage any Dot V F 2.3 2.8 V IF=80mA Reverse Current any Dot I R 100 µAV R=5V Luminous Intensity Matching Ratio I V-m 2:1 I p=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.
LITE-ON ELECTRONICS, INC. P r o p e r t y of Lite-On Only PART NO.: LTP-2157AKR PAGE: 5 of 5 BNS-OD-C131/A4 TYPICAL ELECTRICAL / OPTICAL CHARACTERISTIC CURVES (25oC Ambient Temperature Unless Otherwise Noted)