LB-502DN Series LED displays High efficiency, two-digit numeric displays LB-502DN Series The LB-502DN series were designed to meet the need for multi-digit numeric displays. These LED numeric displays use GaAsP on GaP for the emitting material (with the exception of green) and are housed in an epoxy resin package. They are two-digit displays with a character height of 13.0mm. zDimensions (Unit: mm) 25.0 12.7 (15.24) 2−φ1.25 0.5 (2.54) (20.32) 3.5Min. 7.0 1.25 7.4 0.25 zFeatures 1) Height of character: 13.0mm 2) Common anode and common cathode configurations are available for each color. 3) High efficiency reflectors are used to achieve a bright, clear display. 4) The package surface is painted black and the segments are colored the display color. 13.0 17.5 1.25 10˚ Tolerances are ±0.2 unless otherwise noted : zSelection guide Emitting color Orange Red Green Common LB-502VD LB-502DD ∗ LB-502MD LB-502VN Cathode ∗ Order-based production. LB-502DN ∗ LB-502MN Anode zPin assignments 18 17 16 15 14 13 12 11 10 + + + + + + + + + a1 a2 f1 f2 b1 b2 g1 e1 g2 c1 e2 c2 d1 + Pin No. 1 d2 Digit 1 D.P1 + + + + + 2 6 3 4 5 Digit 2 D.P2 + + + 7 8 Pin No. Function Pin No. Function 1 2 3 4 5 6 7 8 9 Segment "e1" Segment "d1" Segment "c1" D.P1 Segment "e2" Segment "d2" Segment "g2" Segment "c2" D.P2 10 11 12 13 14 15 16 17 18 Segment "b2" Segment "a2" Segment "f2" Digit 2 Common Digit 1 Common Segment "b1" Segment "a1" Segment "g1" Segment "f1" 9 Rev.C 1/3 LB-502DN Series LED displays zInternal circuit schematic (example of common anode) Dig.1 14 COM Dig.2 13 a1 b1 c1 d1 e1 f1 g1 D.P1 16 15 3 2 1 18 17 4 COM a2 b2 c2 d2 e2 f2 g2 D.P2 11 10 8 6 5 12 7 9 zAbsolute maximum ratings (Ta=25°C) Parameter Red Symbol Orange Green Unit LB-502VD / VN LB-502DD / DN LB-502MD / MN Power dissipation PD 960 960 960 mW Power dissipation PD / seg 60 60 60 mW Forward current IF 20 20 20 mA Peak forward current IFP 60∗ 60∗ 60∗ mA Reverse voltage VR 5 5 5 V Operating temperature Topr −25∼+75 ˚C Storage temperature Tstg −30∼+85 ˚C ∗ Pulse width 1ms duty 1 / 5 zElectrical and optical characteristics (Ta=25°C) Parameter Min. VF Forward voltage IF=10mA − Green Orange Red Symbol Conditions Typ. Max. Min. 2.0 2.8 − Typ. Max. Min. 2.0 2.8 − Typ. Max. 2.1 2.8 Unit V Reverse current IR VR=5V − − 100 − − 100 − − 100 µA Peak wavelength λP IF=10mA − 650 − − 610 − − 563 − nm Spectral line half width ∆λ IF=10mA − 40 − − 40 − − 40 − nm Not designed for radiation resistance. zLuminous intensity λP Color Red 650 Type LB-502VD Min. Typ. Max. Unit 5.6 16 − mcd 5.6 16 − mcd 9.0 25 − mcd LB-502VN Orange 610 LB-502DD LB-502DN Green 563 LB-502MD LB-502MN Note : Measured at IF=10mA Rev.C 2/3 LB-502DN Series LED displays zElectrical and optical characteristic curves Ta=25°C 10.00 LB-502MD LB-502MN LB-502VD LB-502VN 10 1 0.1 1 1.5 2 2.5 3 Relative Luminous Intensity Forward Current:IF(mA) 100 Ta=25°C 1.00 0.10 0.01 1 10 100 Forward Voltage:VF(V) Forward Current:IF(mA) Fig.1 Forward Current - Forward Voltage Fig.2 Relative Luminous Intensity - Forward Current IF=10mA 10 0.8 0.6 0.4 -25 -15 -5 5 15 25 35 45 55 65 75 Case Temparature (°C) Fig.3 Relative Luminous Intensity - Case Temperature 30Hz 100Hz 300Hz 1kHz 3kHz 10kHz 30kHz 1 300kHz 1.2 100kHz ( Relative Luminous Intensity 1.4 IF peak Max. Ratio of Maximum Tolerable peak IF Max. Current to Maximum Forward Current ) 1.6 1 1 10 100 1000 10000 100000 Pulse Duration : tw(µs) Fig.4 Ratio of Maximum Tolerable Peak Current - Pulse Duration 120% Forward Current (%) 100% 80% 60% 40% 20% 0% -25 -15 -5 5 15 25 35 45 55 65 75 85 Ambient Temperature(°C) Fig.5 Derating Rev.C 3/3 Notice Notes No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy of the information specified in this document. However, should you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no responsibility for such damage. The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM and other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. The Products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices). The Products specified in this document are not designed to be radiation tolerant. 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