lite-on electronics, inc. property of lite-on only part no.: LTP-2157AE-RC 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. lead-free package ( according to rohs) description the LTP-2157AE-RC is a 2.0 inch (50.8 mm) matrix height 5 7 dot matrix display.this device u tilizes red orange led chips, which are made from gaasp on gap substrate, and has a gray face and white dot color. device part no. description red orange LTP-2157AE-RC cathode column anode row
lite-on electronics, inc. property of lite-on only part no.: LTP-2157AE-RC page: 2 of 5 bns-od-c131/a4 package dimensions notes: 1.all dimensions are in millimeters. tolerance is 0.25 mm (0.01?) unless otherwise noted. 2.pin tip?s shift tolerance is 0.25 mm internal circuit diagram
lite-on electronics, inc. property of lite-on only part no.: LTP-2157AE-RC page: 3 of 5 bns-od-c131/a4 pin connection no. connection 1 anode row 5 2 anode row 7 3 cathode column 2 4 cathode column 3*1 5 anode row 4*2 6 cathode 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. property of lite-on only part no.: LTP-2157AE-RC page: 4 of 5 bns-od-c131/a4 absolute maximum rating at ta=25 o c parameter maximum rating unit average power dissipation per dot 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 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. or temperature of unit (during assembly) not over max. temperature rating above electrical / optical characteristics at ta=25 o c parameter symbol min. typ. max. unit test condition average luminous intensity i v 1780 4800 cd i p =80ma 1/16duty peak emission wavelength p 630 nm i f =20ma spectral line half-width ? 40 nm i f =20ma dominant wavelength d 621 nm i f =20ma 2.0 2.6 i f =20ma forward voltage any dot v f 2.6 3.4 v i f =80ma reverse current any dot i r 100 a v r =5v luminous intensity matching ratio i v -m 2:1 i f =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.
lite-on electronics, inc. property of lite-on only part no.: LTP-2157AE-RC page: 5 of 5 bns-od-c131/a4 typical electrical / optical characteristic curves (25 o c ambient temperature unless otherwise noted)
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