9-52 0.3" 5 7 single color dot matrix led displays ltp-305 series package dimensions features 0.3 inch (7.62mm) matrix height. choices of three bright colors-yellow/green/high effi- ciency red. single plane, wide viewing angle. solid state reliability. 36 light emitting diodes. low power requirements. 5 7 array with x-y select and decimal point. compatible with usascll and ebcdic codes. categorized for luminous intensity easy mounting on p.c. board or sockets. description the ltp-305 series are 0.3 inch (7.62mm) matrix height 5 7 dot matrix displays. yellow display have yellow package. green displays have green package. high efficiency red displays have red package. the red series devices utilize led chips which are made from gaasp on a gaas substrate. the green series devices utilize led chips which are made from gap on a transparent gap substrate. the yellow and high efficiency red series devices utilize led chips which are made from gaasp on a transparent gap substrate. part no. green anode column, cathode row; lt. hand decimal LTP-305G description notes : all dimensions are in millimeters(inches). tolerance : 0.25mm (0.010") unless otherwise noted. hi. eff. red ltp305hr devices anode column 2 cathode row 1 cathode row 3 cathode row 4 anode column 1 no pin anode decimal (point) pin no. 1 2 3 4 5 6 7 anode column 3 cathode row 7 cathode row 6 cathode row 5 cathode row 2 anode column 5 anode column 4 pin connection connection connection pin no. 8 9 10 11 12 13 14 yellow ltp-305y
9-53 displays parameter average power dissipation per dot peak forward current per dot average forward current per dot derating linear from 25 per dot reverse voltage per dot operating temperature range storage temperature range solder temperature 1/16 inch below seating plane for 3 seconds at 260 yellow green hi. eff. red 22 60 8 0.08 5 26 75 10 0.14 5 26 75 10 0.14 5 internal circuit diagram absolute maximum ratings at ta=25 electrical/optical characteristics at ta=25 ltp-305y parameter average luminous intensity peak emission wavelength spectral line half-width dominant wavelength forward voltage, any dot reverse current, any dot luminous intensity matching ratio symbol i v p d v f i r i v -m min. 630 typ. 1600 585 35 588 2.1 3.0 max. 2.6 3.7 100 2:1 unit test condition i p =80ma 1/16 duty i f =20ma i f =20ma i f =20ma i f =20ma i f =80ma v r =5v i f =10ma cd nm nm nm v v a parameter average luminous intensity peak emission wavelength spectral line half-width dominant wavelength forward voltage, any dot reverse current, any dot luminous intensity matching ratio symbol i v p d v f i r i v -m min. 630 typ. 1600 565 30 569 2.1 3.0 max. 2.6 3.7 100 2:1 unit test condition i p =80ma 1/16 duty i f =20ma i f =20ma i f =20ma i f =20ma i f =80ma v r =5v i f =10ma cd nm nm nm v v a LTP-305G unit mw ma ma ma/ v -35 to +85 -35 to +85
9-54 parameter average luminous intensity peak emission wavelength spectral line half-width dominant wavelength forward voltage, any dot reverse current, any dot luminous intensity matching ratio symbol i v p d v f i r i v -m min. 630 typ. 1600 635 40 623 2.0 2.6 max. 2.6 3.4 100 2:1 unit test condition i p =80ma 1/16 duty i f =20ma i f =20ma i f =20ma i f =20ma i f =80ma v r =5v i f =10ma cd nm nm nm v v a ltp-305hr note: luminous intensity is measured with a light sensor and filter combination that approximates the cie (commision internationale de leclairage) eye-response curve. typical electrical/optical characteristic curves (25 ambient temperatrue unless otherwise noted)
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