lightkey spec no: ds10121847 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 dual color dot matrix led displa y lm40057 a/brg series ? 3.00 inch 5x7 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 ? 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 1 * / $ 0 - 3 0 8 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: ds10121847 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 dual color dot matrix led displa y internal circuit diagram lm400 57 arg (common cathode ro w ) lm40057brg (co mmon anod e ro w ) / 0 $ 0 / / & $ 5 0 3 " / ( & ( 3 & & / 3 0 8 $ 0 - 1 * / / 0 / 0 1 * / 3 0 8 1 * / / 0 $ 0 - 1 * / / 0 selection guide 4.00 inch 5x7 red-green led dot matrix module, matrix height: 106.50mm(4. 00 inch), external dimensions: 76.00 0x 106. 50 x13.0 0 m m (l x w x h) part no. chip i v (mcd)@20ma one dot des c ription ca thode ro w a n ode ro w ma te ria l color w ld (nm) min. ty p. gaalas super r e d 640 12 15 standard brightn e ss lm40 057 a r g l m 4 0 057 b r g g a p g r e e n 5 6 8 1 0 . 5 1 3 . 5 a l g a i n p u l t r a re d 6 4 0 4 5 6 7 . 5 ultra-hig h brightn e ss lm40 057 aur u g l m 4 0 057 bur u g a l g a i n p u l t r a green 5 7 3 4 5 6 7 . 5
lightkey spec no: ds10121847 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 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 1.8 2.2 50 120 25 100 5 green 2.2 2.5 50 160 30 100 5 ultra red 1.9 2.6 50 120 30 100 5 ultra green 2.1 2.6 50 150 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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