lightkey spec no: ds10121845 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 4x4 dual color dot matrix led displa y lm40044 a/brg series ? 4.00 inch 4x4 dual co lor 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 ? 108.80 mm (4.00 inch) dig i t high ? d o t s i z e : d i a m e t e r 2 0 . 0 0 m m ? pitch: 27.20 mm ? w i d e v i e w i n g a n g l e ? emitted colors: red and gr ee n ? 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 ? alt e rnat iv e emi t t i ng lumi nosit y: st andar d or hi gh bri ght n e ss versio n ? alt e rnat iv e emi t t ed color ? alt e rnat iv e dot color ? alt e rnat iv e f a ce ? bot h cc an d c a versions ar e avail a b l e ? crop ped t e rmi nal p i ns ? rohs com p li a n t package di mensions 5.08 5 = 2 5 . 4 ?0 . 8 0 6 . 4 9 0 . 7 1 12 3 4 1 2 3 4 co l . ro w 27 . 2 3 = 8 1 . 6 6 . 1 8 = 3 2 . 7 2 1 0 8. 8 ( 4. 3 5 ) ) 5 3 . 4 ( 8 . 8 0 1 ?2 0 . 0 ( 0. 8 0 ) pi n 1 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: ds10121845 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 4x4 dual color dot matrix led displa y internal circuit diagram lm400 44 arg (common cathode ro w ) l m 4004 4brg (common anode ro w ) 1 1 2 1 2 1 3 0 1 1 9 5 6 6 7 7 1 1 2 2 3 3 4 4 1 11 1 88 4 4 22 11 22 3 3 4 4 pi n no . pi n no . pi n no . pi n no . . l o c . l o c 3 0 9 5 selection guide 4.00 inch 4x4 red-green led dot matrix module, matrix height: 108.80mm(4. 00 inch), external dimensions: 108.8 0 x 108. 80 x17.0 0 m m (l xw xh) part no. chip i v (mcd)@20ma one dot des c ription common ca thode ro w common a n ode ro w material color w ld (nm) min. ty p. gaalas super r e d 640 24 30 st andar d bright n e ss lm40 044 a r g l m 4 0 044 b r g g a p g r e e n 5 6 8 2 1 2 7 algai n p u l t r a re d 6 4 0 9 0 1 3 5 ult r a-hi gh bright n e ss lm40 044 aur u g l m 4 0 044 bur u g algai n p u l t r a green 5 7 3 9 0 1 3 5
lightkey spec no: ds10121845 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 4x4 dual color dot matrix led display electrical characteristics & absolute maximum ratings electrical optical characteristics [1] absolute maximum ratings [1] v f (v) @ if=20ma [2] color typ. max. reverse current vr=5v (ua) power dissipation (mw) dc forward current (ma) peak forward current [3] (ma) reverse voltage (v) super red 7.2 8.8 100 240 25 100 5 green 8.8 5.0 100 320 30 100 5 ultra red 7.6 10.4 100 240 30 100 5 ultra green 8.4 10.4 100 300 30 100 5 operating/ storage temp.: -40 to +80 deg.; lead solder temp.: 260 deg. for 3-5 sec. 2mm below package base 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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