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ltp-4057a/4157a 4257aa/4357aa series package dimensions a. ltp-4057a/4157a features 4.0 inch (101.6mm) matrix height. low power requirement. single plane, wide viewing angle. 5 7 array with x-y select. compatible with usascll and ebcdic codes. stackable vertically and horizontally. choices of two matrix orientation. cathode row or cathode column. easy mounting on p.c. board. categorized for luminous intensity. single color displays have the choices of four bright colors-green/yellow/red orange/algaas red. multicolor displays are applicable to three bright colors : green, red orange and yellow (green and red orange mixed) description the ltp-4x57a series are 2.0 inch (50.80mm)matrix height 5 7 dot matrix displays. the ltp-4257aa/4357aa are multicolor applicable displays. the multicolor displays have gray face and white dots. the ltp-4057a/4157a series are single color displays. the green, red orange displays have gray face and white dot color. the algaas red devices have red face and white dots. the green series devices utilize led chipse which are made from gap on a transparent gap substrate. the red orange series devices utilize led chips which are made from gaasp on a transparent gap substrate. the algaas red series devices utilize led chips which are made from aigaas on a non-transparent gaas substrate. notes : all dimensions are in millimeters(inches). tolerance : 0.25mm (0.01") unless otherwise noted. devices b. ltp-4257aa/4357aa part no. ltp- package dimension red orange anode column, cathode row cathode column, anode row anode column, cathode row cathode column, cathode row 4057ae 4157ae multi color 4257aa 4357aa green 4057ag 4157ag internal circuit diagram description a b c d a a b b algaas red 4057ac 4157ac yellow 4057ay 4157ay p4x57.p65 2000/7/11, uJ 05:07 page 78 adobe pagemaker 6.5c/win
9-79 displays pin connection pin no. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 a. ltp-4057a cathode row 5 cathode row 7 anode column 2 anode column 3 cathode row 4 anode column 5 cathode row 6 cathode row 3 cathode row 1 anode column 4 anode column 3 cathode row 4 anode column 1 cathode row 2 connection b. ltp-4157a anode row 5 anode row 7 cathode column 2 cathode column 3 anode row 4 cathode column 5 anode row 6 anode row 3 anode row 1 cathode column 4 cathode column 3 anode row 4 cathode column 1 anode row 2 pin no. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 c. ltp-4257aa anode column 1 green anode column 1 red orange cathode row 7 green cathode row 7 red orange anode column 2 green anode column 2 red orange anode column 3 green anode column 3 red orange cathode row 5 green cathode row 5 red orange cathode row 4 green cathode row 4 red orange cathode row 6 green cathode row 6 red orange anode column 5 green anode column 5 red orange cathode row 1 green cathode row 1 red orange anode column 4 green anode column 4 red orange anode column 3 green anode column 3 red orange cathode row 3 green cathode row 3 red orange cathode row 4 green cathode row 4 red orange cathode row 2 green cathode row 2 red orange connection d. ltp-4357aa cathode column 1 green cathode column 1 red orange anode row 7 green anode row 7 red orange cathode column 2 green cathode column 2 red orange cathode column 3 green cathode column 3 red orange anode row 5 green anode row 5 red orange anode row 4 green anode row 4 red orange anode row 6 green anode row 6 red orange cathode column 5 green cathode column 5 red orange anode row 1 green anode row 1 red orange cathode column 4 green cathode column 4 red orange cathode column 3 green cathode column 3 red orange anode row 3 green anode row 3 red orange anode row 4 green anode row 4 red orange anode row 2 green anode row 2 red orange
9-80 internal circuit diagrams a. ltp-4057a b. ltp-4157a note : the sign " " stands for 2 chips in series. c. ltp-4257aa d. ltp-4357aa absolute maximum ratings at ta=25 notes : the sign " " stands for green color 2 chips sceries. the sign " " stands for red orange color 2 chips sceries. parameter average power dissipation per dot solder temperature 1/16 inch below seating plane for 3 seconds at 260 -35 to +85 -35 to +85 green red orange algaas red 64 unit mw yellow peak forward current per dot (1/10 duty cycle, 0.1ms pulse width) average forward current per dot derating linear from 25 per dot reverse voltage per dot operating temperature range storage temperature range 90 11 0.15 10 60 80 8 0.11 10 64 90 11 0.15 10 64 110 14 0.19 10 ma ma ma/ v p4x57.p65 2000/7/11, uJ 05:07 page 80 adobe pagemaker 6.5c/win
9-81 electrical/optical characteristics at ta=25 ltp-4057ag/4157ag & ltp-4257aa/4357aa (green) ltp-4057ay/4157ay ltp-4057ae/4157ae & ltp-4257aa/4357aa (red orange) note: luminous intensity is measured with a light sensor and filter combination that approximates the cie (commision internationale de l?eclairage) eye-response curve. ltp-4057ac/4157ac parameter average luminous intensity peak emission wavelength spectral line half-width dominant wavelength forward voltage, any dot reverse current, any dot symbol i v p d v f i r min. 3000 typ. 9600 565 30 569 4.2 6 max. 5.2 7.4 100 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 =10v cd nm nm nm v v a i v -m 2:1 i p =80ma 1/16 duty luminous intensity matching ratio parameter average luminous intensity peak emission wavelength spectral line half-width dominant wavelength forward voltage, any dot reverse current, any dot symbol i v p d v f i r min. 3000 typ. 9600 585 35 588 4.2 6.0 max. 5.2 7.4 100 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 =10v cd nm nm nm v v a i v -m 2:1 i p =80ma 1/16 duty luminous intensity matching ratio parameter average luminous intensity peak emission wavelength spectral line half-width dominant wavelength forward voltage, any dot reverse current, any dot symbol i v p d v f i r min. 3000 typ. 9600 630 40 621 4 5.2 max. 5.2 6.8 100 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 =10v cd nm nm nm v v a i v -m 2:1 i p =80ma 1/16 duty luminous intensity matching ratio parameter average luminous intensity peak emission wavelength spectral line half-width dominant wavelength forward voltage, any dot reverse current, any dot symbol i v p d v f i r min. 11600 typ. 20000 660 35 638 3.6 4 max. 4.8 6.2 100 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 =10v cd nm nm nm v v a i v -m 2:1 i p =80ma 1/16 duty luminous intensity matching ratio p4x57.p65 2000/7/11, uJ 05:08 page 81 adobe pagemaker 6.5c/win
9-82 typical electrical/optical characteristic curves (25 ambient temperatrue unless otherwise noted) p4x57.p65 2000/7/11, uJ 05:08 page 82 adobe pagemaker 6.5c/win
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