lightkey spec no: ds10121848 rev : a.4 checke d: emil y zh ou appr oved: m.h. lin p a ge: 1/3 http://www .l tkey .c om tel: 0086-574 -863 222 82 da te: jul/20/201 1 dat a shee t of 4.00 inch 5x7 dot matri x led displa y lm40057 c/d series ? 4.00 inch 5x7 dot matrix led displa y at t e n t i o n ob ser ve pr ec a u t i o n s fo r h a ndl i n g e l e c tro s t a ti c di s c h a rg e sen s i t i v e d evi c e s f e a t u r e s ? 106.50m m (4 .00 inch ) digit high ? d o t s i z e : d i a m e t e r 1 0 . 0 0 m m ? pitch: 15.24 mm ? w i d e v i e w i n g a n g l e ? r a n g e o f e m i t t e d c o l o r s ? i . c . c o m p a t i b l e ? l o w p o w e r c o n s u m p t i o n ? w h i t e d o t , g r e y o r b l a c k f a c e available options ? alternativ e emi tting lumi nosit y: standar d or hi gh bri ghtn e ss versio n ? alternativ e emi tted color ? alternativ e dot color ? alternativ e face ? both cc an d c a versions ar e avail a b l e ? crop ped termi nal p i ns ? rohs com p li a n t package di mensions 76.20 1 3 . 0 0 5.08 *6=30.4 8 15 .24* 4=6 0 .96 76 . 0 0 pi n 1 1 co l . 1 0 6 . 5 0 1 5 . 2 4 * 6 = 9 1 . 4 4 5 4 3 2 7 6 5 3 4 ro w 2 1 1 0 . 0 0 0. 80 5 . 3 0 0 . 5 0 notes: 1. all dim ens ion s are in millimet ers (inches), t o lerance is + 0.25mm (0.01inch) u n less other w i se noted. 2. specific ation s are subj ect to change w i thout notice. 3. t he ga p between the reflector and pcb s hall not ex ceed 0.2 5 mm.
lightkey spec no: ds10121848 rev : a.4 checke d: emil y zh ou appr oved: m.h. lin p a ge: 2/3 http://www .l tkey .c om tel: 0086-574 -863 222 82 da te: jul/20/201 1 dat a shee t of 4.00 inch 5x7 dot matri x led displa y internal circuit diagram lm400 57 c (common ca thode ro w ) lm40057 d (common an ode ro w ) 7 2 6 5 7 1 4 12 5 7 6 5 4 2 7 1 12 5 no . pin no. 3 2 8 14 row 1 9 co l. 13 pi n 1 4 2 3 11 3 4 10 5 6 col. 3 2 ro w 1 8 14 9 no . pin pin no . 13 1 3 23 41 1 10 4 6 5 selection guide part no. chip i v @if= 20ma one do t common cathode ro w common anod e ro w m a t e r i a l c o l o r wl d m i n . t y p. ld40 057 cr ld40 057 dr gaalas super red 640 12 15 ld40 057 cd ld40 057 dd gaalas hi-red 640 27 3 7 . 5 ld40 057 co ld40 057 do gaasp oran g e 625 10.5 1 3 . 5 ld40 057 cy ld40 057 dy gaasp y e l l o w 588 12 15 ld40 057 cg ld40 057 dg gap gree n 568 10.5 1 3 . 5 ld40 057 cur ld40 057 dur algainp ultra red 640 45 6 7 . 5 ld40 057 cuo ld40 057 duo algainp ultra o r an ge 625 67.5 9 0 ld40 057 cua ld40 057 dua algainp ultra ambe r 605 45 6 7 . 5 ld40 057 cuy ld40 057 duy algainp ultra yello w 595 45 6 7 . 5 ld40 057 cug ld40 057 dug algainp ultra g r ee n 573 45 6 7 . 5 ld40 057 cp g ld40 057 dp g i n g a n pure g r een 525 180 450 ld40 057 cub ld40 057 dub i n g a n ultra blue 470 45 6 7 . 5 ld40 057 cuw ld40 057 duw smd ultra w h i t e \ 150 180 u n i t : \ \ \ n m mc d mc d
lightkey spec no: ds10121848 rev: a.4 checked: emil y zhou approved: m.h. lin page: 3/3 http://www.ltkey.com tel: 0086-574-86322282 date: jul/20/2011 datasheet of 4.00 inch 5x7 dot matrix led display electrical characteristics & absolute maximum ratings parameter electrical optical characteristics [1] absolute maximum ratings [1] v f @ if=20ma [2] emitted color typ. max. reverse current vr=5v power dissipation dc forward current peak forward current [3] super red per dot 5.4 6.6 50 120 25 100 hi-red per dot 5.4 6.6 50 120 25 100 orange per dot 6.3 7.5 50 160 30 100 yellow per dot 6.3 7.5 50 160 30 100 green per dot 6.6 7.5 50 160 30 100 ultra red per dot 5.7 7.8 50 120 30 100 ultra orange per dot 6 7.8 50 130 30 100 ultra amber per dot 6 7.8 50 130 30 100 ultra yellow per dot 6 7.8 50 130 30 100 ultra green per dot 6.3 7.8 50 150 30 100 pure green per dot 10.5 12 50 220 30 100 ultra blue per dot 10.5 12 50 240 30 100 ultra white per dot 10.5 12 50 240 30 100 unit: \ v v ua mw ma ma notes: 1. at ta = 25 c. 2. forward voltage at forward current = 20ma. 3. peak forward current at 1/10 duty cycle, 0.1ms pulse.
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