lite-on dcc release lite-on technology corp. / optoelectronics no.90,chien 1 road, chung ho, new taipei city 23585, taiwan, r.o.c. tel: 886-2-2222-6181 fax: 886-2-2221-1948 / 886-2-2221-0660 http://www.liteon.com/opto led displayproduct data sheetLTC-37C8SW spec no.: ds30-2013-0076effective date: 08/23/2013revision: - bns-od-fc001/a4 bns-od-fc001/a4 bns-od-fc001/a4 bns-od-fc001/a4
lite - on technology corpor ation property of lite - o n only part no.: ltc - 37c 8sw page: 1 of 7 bns - od - c131/a4 lt c - 37c8 sw data sheet item description by date 1 new spec. reo lin 201 3 / 0 3 / 26 2 modify segment height f r o m customer request reo lin 201 3 / 03 / 27 3 modify segment structure from customer request reo lin 201 3 / 04 / 0 7
lite - on technology corpor ation property of lite - o n only part no.: ltc - 37c 8sw page: 2 of 7 bns - od - c131/a4 features 0.3 inch ( 7.62 mm ) digit height continuous uniform segments low power requirement excellent characters appearance high brightness & high contrast wide viewing angle solid state reliability categorized for luminous intensity lead - free pac kage (according to rohs) . description the ltc - 37c 8sw is a 0.3 inch ( 7.62 mm) digit height quadruple - digit display. this device uses ingan white led chips ( ingan on a transparent substrate) . the display has gray face and white segments. device part no. description ingan white common cathode rt. hand decimal lt c - 37c8 sw
lite - on technology corpor ation property of lite - o n only part no.: ltc - 37c 8sw page: 3 of 7 bns - od - c131/a4 package dimensions notes: 1.all dimensions are in millimeters. tolerances are ? 0.25 mm (0.01) unless otherwise noted. 2. pin tips shift tolerance is ? 0.4 mm. 3 . recommend the best pcb hole : diameter 0.9 mm 4 . foreign material on segment Q 10mils 5 . ink contamination (surface) Q 20mils 6 . bending Q 1% of reflector length 7 . bubble in segment Q 10mils
lite - on technology corpor ation property of lite - o n only part no.: ltc - 37c 8sw page: 4 of 7 bns - od - c131/a4 internal circuit diagram pin connection no. connection 1 common cathode digit 1 2 common cathode di git 2 3 anode a 4 anode d 5 anode e 6 anode g 7 anode dp 8 anode f 9 anode c 10 anode b 11 common cathode digit 3 12 common cathode digit 4
lite - on technology corpor ation property of lite - on only part no.: lt c - 37c8 sw page: 5 of 7 bns - od - c131/a4 chip led absolute maximum rating parameter maximum rating unit power dissipation per segment 35 mw peak forward current per segment ( frequency 1khz, 10% duty cycle) 50 ma continuous forward current per segment 10 ma forward current derating from 25 0 c 0.28 ma/ c operating temperature range - 35 c to + 85 c storage temperature range - 35 c to + 8 5 c soldering conditions: 1/16 inch below seating plane for 3 seconds at 260 c . chip led electrical / optical characteristics at ta=25 o c parameter symbol min. typ. max. unit test condition average luminous intensity i v 45 180 mcd if = 5 ma note 1, 2 , 5 viewing angle 2 1/2 130 deg fig.6 chromaticity coordinates x 0. 294 if = 5 ma note 3, 5 fig.1 y 0. 286 forward voltage per segment v f 2. 55 3.15 v if = 5 ma reverse current per segment ( 7 ) i r 10 0 ? a vr=5v luminous intensity matching ratio (similar light area) i v - m 2:1 if= 5m a note : 1. luminous intensity is measured with a light sensor and filter combination that approximates the cie eye - response curve. 2. iv classification code is marked on each packing bag. 3. the chromaticity coordinates (x, y) is derived from the 1931 cie chromaticity diagram. 4 . caution in esd: static electricity and surge damages the led. it is recommend to use a wrist band or anti - electrostatic glove when handling the led. all devices, equipment and machinery must be properly grounded. 5 . tester : cas140b is for the chromaticity coordinates (x, y) and iv. 6 . the chromaticity coordinates (x, y) guarantee should be added 0.01 tolerance 7. reverse voltage is only for ir test. it can not continue to operate at this situa tion.
lite - on technology corpor ation property of lite - on only part no.: lt c - 37c8 sw page: 6 of 7 bns - od - c131/a4 typical electrical / optical characteristic curves (25 o c ambient temperature unless otherwise noted)
lite - on technology corpor ation property of lite - on only part no.: lt c - 37c8 sw page: 7 of 7 bns - od - c131/a4 bin code list v f spec. table v f bin forward voltage ( v ) at if = 5 ma min. max . v1 2.55 2.65 v2 2.65 2.75 v3 2.75 2.85 v4 2.85 2.95 v5 2.95 3.05 v6 3.05 3.15 tolerance on each forward voltage bin is +/ - 0. 05 volt iv spec. table iv bin luminous intensity (mcd) at if = 5 ma min. max. p 45.0 71.0 q 71.0 112.0 r 112.0 180.0 tolerance on each luminous intensity bin is +/ - 15%. hue spec. table hue b in color bin limits at if = 5 ma cie 1931chromaticity coordinates s1 x 0.274 0.274 0.294 0.294 y 0.226 0.258 0.286 0.254 s2 x 0.274 0.274 0.294 0.294 y 0.258 0.291 0.319 0. 286 s3 x 0.294 0.294 0.314 0.314 y 0.254 0.286 0.315 0.282 s4 x 0.294 0.294 0.314 0.314 y 0.286 0.319 0.347 0.315 s5 x 0.314 0.314 0.334 0.334 y 0.282 0.315 0.343 0.311 s6 x 0.314 0.314 0.334 0.334 y 0.315 0.347 0.376 0.343 tolerance on each h ue (x, y) bin is +/ - 0.01.
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