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BL78XX www.belling .com.cn v1.0 page1 3-terminal 1a positive voltage regulator BL78XX general description the b l7 8xx se rie s of th re e -termina l po sitive reg u la to r are a va ila ble in the to-220 pa cka ge an d with se ve ra l fix ed ou tp ut voltag e s, mak in g th e m use fu l in a wide ran ge of a pp lica tio ns. each t ype e mp lo ys in te rna l c u rren t limiting , therma l shu t d own and sa fe ope rating area p ro te c tion, mak in g it esse ntia l ly ind estru ctible. if a deq ua te h ea t sink ing is p ro vided , th e y can de liver o ver 1a outpu t cu rren t. althoug h de sign ed prima ril y a s fix ed vo ltage regu la tors, the se d e vice s can b e u se d with ex te rn a l c o mpon en ts to ob ta in a d justab le vo ltag es a nd cu rren ts. feature outpu t cu rren t up to 1 a therma l o ve rloa d p ro tec tion short c ircu it p ro te c tio n outpu t tran sisto r sa fe opera ting a rea p ro te c tion outpu t vo ltag es : b l7805 : 5v b l78 06 : 6v b l7 808 : 8 v b l7 809 : 9v b l78 12: 12v b l781 5 :15v pin connections
BL78XX www.belling .com.cn v1.0 page2 block diagram absolute maximum ratings (ta =25 c ) charac te ristics s ymb o l value units inp ut vo ltag e vi 35 v therma l re sista nce ju nc tion -ca se r j c 5 c/w therma l re sista nce ju nc tion -a ir r j a 65 c/w opera ting te mpe ra tu re range t o p r -20~+8 5 c storag e te mpe ra tu re r ange t s t g -55~+1 50 c
BL78XX www.belling .com.cn v1.0 page3 bl7805 electrical characteristics (re fe r to the test circu it, -2 0 c t j 85 c , io=500 ma , vi= 10v, c i=0.33 f, co=0 .1 f, unless o the rwise spe cifie d charac te ristics s ymb o l test co nd ition s min typ max unit t j = + 2 5 c 4.8 5.0 5.2 o u t p u t vo l t a g e vo 5 . 0 m a i o 1 . 0 a , p o 1 5 w vi = 7 v t o 2 0 v 4.75 5.0 5.25 v vi = 7 v t o 2 5 v 4.0 100 l i n e r e g u l a t i o n * r e g l i n e t j = + 2 5 c vi = 8 v t o 1 2 v 1.6 50 mv i o = 5 . 0 m a t o 1 . 5 a 15 100 lo a d r e g u l a t i o n * r e g l o a d t j = + 2 5 c i o = 2 5 0 m a t o 7 5 0 m a 4 50 mv q u i e s c e n t c u r r e n t i q t j = + 2 5 c 5.0 8.0 ma i o = 5 . 0 m a t o 1 . 0 a 0.03 0.5 q u i e s c e n t c u r r e n t c h a n g e i q vi = 7 v t o 2 5 v 0.3 1.3 ma o u t p u t vo l t a g e d r i f t vo / t i o = 5 . 0 m a -0. 8 m v / c o u t p u t n o i s e vo l t a g e v n f = 1 0 h z t o 1 0 0 k h z , t a = + 2 5 c 42 v/vo r i p p l e r e j e c t i o n r r f = 1 2 0 h z vi = 8 v t o 1 8 v 62 73 db d r o p o u t vo l t a g e v d r o p i o = 1 a , t j = + 2 5 c 2 v s h o r t c i r c u i t c u r r e n t i s c vi = 3 5 v, t a = + 2 5 c 230 ma p e a k c u r r e n t i p k t j = + 2 5 c 2.2 a *loa d an d line reg u la tion are spec ifie d a t c o nstan t ju nc tion te mpe ra tu re . cha nge s in vo due to he a ting e ffe c ts must b e tak en in to a cc oun t s epa ra tel y. p u lse testing with lo w du ty is u sed .
BL78XX www.belling .com.cn v1.0 page4 bl7806 electrical characteristics (re fe r to th e test c ircu it, -20 c t j 8 5 c , io=500 ma , vi=11v, ci=0.33 f, c o=0.1 f, unless o the rwise spe cifie d charac te ristics s ymb o l test co nd ition s min typ max unit t j = + 2 5 c 5.75 6.0 6.25 o u t p u t vo l t a g e vo 5 . 0 m a i o 1 . 0 a , p o 1 5 w vi = 8 v t o 2 1 v 5.7 6.0 6.3 v vi = 8 v t o 2 5 v 5.0 120 l i n e r e g u l a t i o n * r e g l i n e t j = + 2 5 c vi = 9 v t o 1 3 v 1.5 60 mv i o = 5 . 0 m a t o 1 . 5 a 9 120 lo a d r e g u l a t i o n * r e g l o a d t j = + 2 5 c i o = 2 5 0 m a t o 7 5 0 m a 3 60 mv q u i e s c e n t c u r r e n t i q t j = + 2 5 c 5.0 8.0 ma i o = 5 . 0 m a t o 1 . 0 a 0.5 q u i e s c e n t c u r r e n t c h a n g e i q vi = 8 v t o 2 5 v 1.3 ma o u t p u t vo l t a g e d r i f t vo / t i o = 5 . 0 m a -0. 8 m v / c o u t p u t n o i s e vo l t a g e v n f = 1 0 h z t o 1 0 0 k h z , t a = + 2 5 c 45 v/vo r i p p l e r e j e c t i o n r r f = 1 2 0 h z vi = 9 v t o 1 9 v 59 75 db d r o p o u t vo l t a g e v d r o p i o = 1 a , t j = + 2 5 c 2 v s h o r t c i r c u i t c u r r e n t i s c vi = 3 5 v, t a = + 2 5 c 250 ma p e a k c u r r e n t i p k t j = + 2 5 c 2.2 a *loa d an d line reg u la tion are spec ifie d a t c o nstan t ju nc tion te mpe ra tu re . cha nge s in vo due to he a ting e ffe c ts must b e tak en in to a cc oun t s epa ra tel y. p u lse testing with lo w du ty is u sed .
BL78XX www.belling .com.cn v1.0 page5 bl7808 electrical characteristics (re fe r to the test circu it, -2 0 c t j 85 c , io=500 ma , vi= 14v, c i=0.33 f, co=0 .1 f, unless o the rwise spe cifie d charac te ristics s ymb o l test co nd ition s min typ max unit t j = + 2 5 c 7.7 8.0 8.3 o u t p u t vo l t a g e vo 5 . 0 m a i o 1 . 0 a , p o 1 5 w vi = 1 0 . 5 v t o 2 3 v 7.6 8.0 8.4 v vi = 1 0 . 5 v t o 2 5 v 5.0 160 l i n e r e g u l a t i o n * r e g l i n e t j = + 2 5 c vi = 11 . 5 v t o 1 7 v 2.0 80 mv i o = 5 . 0 m a t o 1 . 5 a 10 160 lo a d r e g u l a t i o n * r e g l o a d t j = + 2 5 c i o = 2 5 0 m a t o 7 5 0 m a 5.0 80 mv q u i e s c e n t c u r r e n t i q t j = + 2 5 c 5.0 8.0 ma i o = 5 . 0 m a t o 1 . 0 a 0.05 0.5 q u i e s c e n t c u r r e n t c h a n g e i q vi = 1 0 . 5 v t o 2 5 v 0.5 1.0 ma o u t p u t vo l t a g e d r i f t vo / t i o = 5 . 0 m a -0. 8 m v / c o u t p u t n o i s e vo l t a g e v n f = 1 0 h z t o 1 0 0 k h z , t a = + 2 5 c 52 v/vo r i p p l e r e j e c t i o n r r f = 1 2 0 h z vi = 11 . 5 v t o 2 1 . 5 v 56 73 db d r o p o u t vo l t a g e v d r o p i o = 1 a , t j = + 2 5 c 2 v s h o r t c i r c u i t c u r r e n t i s c vi = 3 5 v, t a = + 2 5 c 230 ma p e a k c u r r e n t i p k t j = + 2 5 c 2.2 a *loa d an d line reg u la tion are spec ifie d a t c o nstan t ju nc tion te mpe ra tu re . cha nge s in vo due to he a ting e ffe c ts must b e tak en in to a cc oun t s epa ra tel y. p u lse testing with lo w du ty is u sed .
BL78XX www.belling .com.cn v1.0 page6 bl7809 electrical characteristics (re fe r to the test circu it, -2 0 c t j 85 c , io=500 ma , vi= 15v, c i=0.33 f, co=0 .1 f, unless o the rwise spe cifie d charac te ristics s ymb o l test co nd ition s min typ max unit t j = + 2 5 c 8.68 9.0 9.32 o u t p u t vo l t a g e vo 5 . 0 m a i o 1 . 0 a , p o 1 5 w vi = 11 . 5 v t o 2 6 v 8.55 9.0 9.45 v vi = 11 . 5 v t o 2 6 v 5.0 150 l i n e r e g u l a t i o n * r e g l i n e t j = + 2 5 c vi = 1 2 . 5 v t o 1 8 v 2.0 80 mv i o = 5 . 0 m a t o 1 . 5 a 10 160 lo a d r e g u l a t i o n * r e g l o a d t j = + 2 5 c i o = 2 5 0 m a t o 7 5 0 m a 5.0 80 mv q u i e s c e n t c u r r e n t i q t j = + 2 5 c 5.0 8.0 ma i o = 5 . 0 m a t o 1 . 0 a 0.05 0.5 q u i e s c e n t c u r r e n t c h a n g e i q vi = 11 . 5 v t o 2 6 v 0.5 1.0 ma o u t p u t vo l t a g e d r i f t vo / t i o = 5 . 0 m a -0. 8 m v / c o u t p u t n o i s e vo l t a g e v n f = 1 0 h z t o 1 0 0 k h z , t a = + 2 5 c 52 v/vo r i p p l e r e j e c t i o n r r f = 1 2 0 h z vi = 11 . 5 v t o 2 1 . 5 v 56 73 db d r o p o u t vo l t a g e v d r o p i o = 1 a , t j = + 2 5 c 2 v s h o r t c i r c u i t c u r r e n t i s c vi = 3 5 v, t a = + 2 5 c 230 ma p e a k c u r r e n t i p k t j = + 2 5 c 2.2 a *loa d an d line reg u la tion are spec ifie d a t c o nstan t ju nc tion te mpe ra tu re . cha nge s in vo due to he a ting e ffe c ts must b e tak en in to a cc oun t s epa ra tel y. p u lse testing with lo w du ty is u sed .
BL78XX www.belling .com.cn v1.0 page7 bl7812 electrical characteristics (re fe r to the te st c irc uit, -2 0 c t j 85 c, io=50 0 ma , vi=19v, c i=0.33 f, co=0. 1 f, unless o the rwise spe cifie d charac te ristics s ymb o l test co nd ition s min typ max unit t j = + 2 5 c 11.5 12 12.5 o u t p u t vo l t a g e vo 5 . 0 m a i o 1 . 0 a , p o 1 5 w vi = 1 4 . 5 v t o 2 7 v 11.4 12 12.6 v vi = 1 4 . 5 v t o 3 0 v 10 240 l i n e r e g u l a t i o n * r e g l i n e t j = + 2 5 c vi = 1 6 v t o 2 2 v 3.0 120 mv i o = 5 . 0 m a t o 1 . 5 a 11 240 lo a d r e g u l a t i o n * r e g l o a d t j = + 2 5 c i o = 2 5 0 m a t o 7 5 0 m a 5.0 120 mv q u i e s c e n t c u r r e n t i q t j = + 2 5 c 5.1 8.0 ma i o = 5 . 0 m a t o 1 . 0 a 0.1 0.5 q u i e s c e n t c u r r e n t c h a n g e i q vi = 1 4 . 5 v t o 3 0 v 0.5 1.0 ma o u t p u t vo l t a g e d r i f t vo / t i o = 5 . 0 m a -1 m v / c o u t p u t n o i s e vo l t a g e v n f = 1 0 h z t o 1 0 0 k h z , t a = + 2 5 c 76 v/vo r i p p l e r e j e c t i o n r r f = 1 2 0 h z vi = 1 5 v t o 2 5 v 55 71 db d r o p o u t vo l t a g e v d r o p i o = 1 a , t j = + 2 5 c 2 v s h o r t c i r c u i t c u r r e n t i s c vi = 3 5 v, t a = + 2 5 c 230 ma p e a k c u r r e n t i p k t j = + 2 5 c 2.2 a *loa d an d line reg u la tion are spec ifie d a t c o nstan t ju nc tion te mpe ra tu re . cha nge s in vo due to he a ting e ffe c ts must b e tak en in to a cc oun t s epa ra tel y. p u lse testing with lo w du ty is u sed .
BL78XX www.belling .com.cn v1.0 page8 bl7815 electrical characteristics (re fe r to the test circu it, -2 0 c t j 85 c , io=500 ma , vi= 23v, c i=0.33 f, co=0 .1 f, unless o the rwise spe cifie d charac te ristics s ymb o l test co nd ition s min typ max unit t j = + 2 5 c 14.4 15 15.6 o u t p u t vo l t a g e vo 5 . 0 m a i o 1 . 0 a , p o 1 5 w vi = 1 7 . 5 v t o 3 0 v 14.2 5 15 15.7 5 v vi = 1 7 . 5 v t o 3 0 v 11 300 l i n e r e g u l a t i o n * r e g l i n e t j = + 2 5 c vi = 2 0 v t o 2 6 v 3.0 150 mv i o = 5 . 0 m a t o 1 . 5 a 12 300 lo a d r e g u l a t i o n * r e g l o a d t j = + 2 5 c i o = 2 5 0 m a t o 7 5 0 m a 4.0 150 mv q u i e s c e n t c u r r e n t i q t j = + 2 5 c 5.2 8.0 ma i o = 5 . 0 m a t o 1 . 0 a 0.5 q u i e s c e n t c u r r e n t c h a n g e i q vi = 1 7 . 5 v t o 3 0 v 1.0 ma o u t p u t vo l t a g e d r i f t vo / t i o = 5 . 0 m a -1 m v / c o u t p u t n o i s e vo l t a g e v n f = 1 0 h z t o 1 0 0 k h z , t a = + 2 5 c 90 v/vo r i p p l e r e j e c t i o n r r f = 1 2 0 h z vi = 1 8 . 5 v t o 2 8 . 5 v 54 70 db d r o p o u t vo l t a g e v d r o p i o = 1 a , t j = + 2 5 c 2 v s h o r t c i r c u i t c u r r e n t i s c vi = 3 5 v, t a = + 2 5 c 250 ma p e a k c u r r e n t i p k t j = + 2 5 c 2.2 a *loa d an d line reg u la tion are spec ifie d a t c o nstan t ju nc tion te mpe ra tu re . cha nge s in vo due to he a ting e ffe c ts must b e tak en in to a cc oun t s epa ra tel y. p u lse testing with lo w du ty is u sed .
BL78XX www.belling .com.cn v1.0 page9 application circuit note s : (1 ) to spec ify an ou tpu t vo ltag e. su bstitu te vo ltag e va lue fo r "xx. " a co mmo n gro und is requ ired be twe en th e in pu t and the outpu t vo lta ge . th e in put vo ltage must re ma in typ ic a lly 2.0v a bo ve the ou tp u t voltage e ven during the lo w p oin t on the inpu t ripp le vo ltage . (2 ) c i is re qu ired if re g ulator is loc a ted an ap p re c iab le d istanc e fro m power su pp ly filter. (3 ) co imp ro ve s stab ility an d tran sien t respon se.
BL78XX www.belling .com.cn v1.0 page10
BL78XX www.belling .com.cn v1.0 page11 characteristic curves
BL78XX www.belling .com.cn v1.0 page12 outline drawing to -22 0 un it:mm

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