lite-on technology corporation property of lite-on only part no.:LTP-2557C page: 0 of 6 bns-od-c131/a4 led display LTP-2557C data sheet rev description by - original spec ruby lee a define f/m at 10mil (page 2). phanomkorn j spec . no .: ds-30-98-476 date : 08/nov/06 rev . no . : a page no. : 0 of 5
lite-on technology corporation property of lite-on only part no.:LTP-2557C page: 1 of 6 bns-od-c131/a4 features * 2 inch (50.8 mm) matrix height. * low power requirement. * single plane, wide viewing angle * solid state reliability. * 5x7 array with x-y select. * compatible with usascll and ebcdic codes. * stackable horizontally. * categorized for lu minous intensity. lead-free package(according to rohs) description the LTP-2557C is a 2 inch (50.8 mm) matrix height 5x7 dot matrix display. this device utilizes algaas red led ch ips, which are made from algaas on a non-transparent gaas substrate, and has a gray face and white dot color. device part no. description algaas red LTP-2557C cathode column anode row
lite-on technology corporation property of lite-on only part no.:LTP-2557C page: 2 of 6 bns-od-c131/a4 package dimensions notes: 1. all dimensions are in millimeters. tolerances are 0.25 mm unless otherwise note. 2. pin tip?s shift tolerance is 0.4 mm. 3. maximu m foreign material size is 10 mils
lite-on technology corporation property of lite-on only part no.:LTP-2557C page: 3 of 6 bns-od-c131/a4 internal circuit diagram
lite-on technology corporation property of lite-on only part no.:LTP-2557C page: 4 of 6 bns-od-c131/a4 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
lite-on technology corporation property of lite-on only part no.:LTP-2557C page: 5 of 6 bns-od-c131/a4 absolute maximu m rating at t a =25 o c parameter maxi mum rating unit average power dissipation per dot 36 mw peak forward current per dot 125 ma average forward current per dot derating linear from 25 0 c per dot 15 0.20 ma ma/ 0 c reverse voltage per dot 5 v operating temperature range -35 0 c to +85 0 c storage temperature range -35 0 c to +85 0 c soldering conditions: 1/16 inch below seating plane for 3 seconds at 260 0 c or of temperature un it (during assembly) not over max. temperature rating above . electrical / optical characteristics at t a =25 o c parameter symbol min. typ. max. unit test condition average luminous intensity i v 6200 12000 cd i p =80ma 1/16duty peak emission wavelength p 660 nm i f =20ma spectral line half-width ? 35 nm i f =20ma dominant wavelength d 638 nm i f =20ma 1.8 2.4 v i f =20ma forward voltage any dot v f 2 3.1 v i f =80ma reverse current any dot i r 100 a v r =5v luminous intensity matching ratio (similar light area) i v -m 2:1 i p =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.
lite-on technology corporation property of lite-on only part no.:LTP-2557C page: 6 of 6 bns-od-c131/a4 typical electrical / opti cal characteristic curves (25 o c ambient temperature unl ess otherwise noted)
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