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www .rohm.com ? 2012 r o hm c o ., lt d. all right s reserved. tsz022 01-0 r 7 r 0g 300 03 0-1 - 2 tsz221 1 1 ? 14 ? 001 1/13 08.jul.201 2.rev . 006 datasheet v o lt age detector ic s e ries st a n d a r d c m o s v o lt age detector ic bd48xxx series bd49xxx series general description rohm? s bd4 8 xxx and b d 49 xxx seri e s are hig h l y accurate, lo w current cons u m ption reset ic series. t he line u p incl ud e s bd48 xxx de vices w i th n chan nel o p e n drain outp u t a nd bd4 9 xxx d e vices w i t h c m os output. t he devices are ava ilable f o r specific detecti on vo lt age s rangi ng from 2. 3v to 6.0v in in crement s of 0.1v . f eatu r es ? high acc u rac y detectio n ? ultra-lo w c u rre nt consumpti o n ? t w o o u tput t y p e s (nch op en d r ain a nd cmo s output) ? w i de operati n g temperatur e rang e ? v e r y smal l an d lo w hei ght p a c kage ? package ssop5 is sim ilar to sot - 23-5 (jedec) ? package ssop3 is sim ilar to sot - 23-3 (jedec) t y pic a l a p p lic a t ion circ ui t key s p ecifications ? detectio n volt a ge: 2.3v to 6.0v ( t y p .), 0.1v step s ? high acc u rac y detectio n volt a ge: 1 . 0 % ? ultra-lo w c u rre nt consumpti o n : 0 . 9 a ( t y p . ) ? operatin g temperatur e rang e : -40c to + 105c pack ag e ssop5: 2.90mm x 2.80 mm x 1.15mm ssop3: 2.90mm x 2.8 0 mm x 1. 15mm vsof 5 : 1.60 m m x 1.60mm x 0.60mm a pplic a t ions circuit s usin g microcontroll ers or logic circuit s that requir e a reset. (open drain output type bd48xxx series v dd1 bd48xxx v dd2 gnd micro controll er r st c l ( c a p a citor for noise fi lteri n g r l product structure:silicon monol ithic integrated ci rcuit this product is not desig ned protec tion a gainst radioactive ra y s . (cmos output ty pe bd49xxx series c l ( c a p a citor for noise fi lteri n g v dd1 bd49xxx micro controll er r st gnd http://
www .rohm.com ? 2012 r o hm c o ., lt d. all right s reserved. tsz022 01-0 r 7 r 0g 300 03 0-1 - 2 tsz221 1 1 ? 15 ? 001 2/13 08.jul.201 2.rev . 006 bd48xxx series bd49xxx series dat a sheet conne c t ion di a g ra m ssop5 vs of5 pin descrip tio n s ssop5 vsof5 pin no. s y mb ol f unction pin no. s y m b o l f unction 1 v out reset output 1 v out reset output 2 v dd po w e r su ppl y v o lt age 2 sub substrate* 3 gnd gnd 3 n.c. uncon necte d t e rmina l 4 n.c. uncon necte d t e rmina l 4 gnd gnd 5 n.c. uncon necte d t e rmina l 5 v dd po w e r su pply v o lt age *connect the s ubstrate to gnd. ssop3(1pin gnd) ssop3(3pin gnd) pin descrip tio n s ssop3-1 ssop3-2 pin no. s y mb ol f unction pin no. s y m b o l f unction 1 gnd gnd 1 v out reset output 2 v out reset output 2 v dd po w e r su pply v o lt age 3 v dd po w e r su ppl y v o lt age 3 gnd gnd z ordering i n f o rma tion note) please be new a nd, in hope of ssop5, cho o se the p a ckage 1 by "e" and p a ckage 2" g . " lot. no to p vi e w v out sub n.c v dd gnd 4 3 2 1 5 marking lot. no to p vi e w v out v dd gnd n.c. n.c. marking 1 2 3 gnd v out v dd marking lot. no to p view 1 2 3 v out v dd gnd marking lot. no to p view p art o u tp ut ty p e p a c ka ge1 r e s e t vol ta ge v alue pa cka g e2 pack age i ng a n d number 48 : o pe n drain 23 : 2.3v f o rming s p eci fic a tion 49 : c m o s 0.1v st ep e m bo s s ed t ape and r eel 60 : 6.0v t r :the pin nu mber 1i s th e u p p e r righ t : sso p 5 : vsof5 t l :t he pi n n umber 1i s packa g e1 pa ckag e2 pa cka g e name t he uppe r lef t e g sso p 5 : sso p 3 - 1 k g ss op3( 1pi n gnd) : ss op3- 2 l g ss op3( 3pi n gnd) blank f ve vso f 5 blank g ss op5 bd x x - t r xx x x
www .rohm.com ? 2012 r o hm c o ., lt d. all right s reserved. tsz022 01-0 r 7 r 0g 300 03 0-1 - 2 tsz221 1 1 ? 15 ? 001 3/13 08.jul.201 2.rev . 006 bd48xxx series bd49xxx series dat a sheet (unit : mm) ssop5 2.9 0.2 0.13 4 + 6 ? 4 1.6 2.8 0.2 1.1 0.05 0.05 0.05 + 0.2 ? 0.1 + 0.05 ? 0.03 0.42 + 0.05 ? 0.04 0.95 5 4 12 3 1.25max. 0.2min. 0.1 direction of feed reel ? order quantity needs to be multiple of the minimum quantity. embossed carrier tape tape quantity direction of feed the direction is the 1pin of product is at the upper right when you hold reel on the left hand and you pull out the tape on the right hand 3000pcs tr () 1pin (unit : mm) vsof5 1.2 0.05 4 3 1.0 0.05 1 0.6max 0.22 0.05 0.5 5 1.6 0.05 0.13 0.05 0.2max 2 1.6 0.05 (max 1.28 include burr) sso p 3 2.92 0.1 3 0.45 0.1 5 4 4 0.15 0.05 1 2 1.2 5 max 2.8 0.15 1.6 0.1 1.1 0.05 0 . 95 1. 9 0. 1 0.4 0.1 l
www .rohm.com ? 2012 r o hm c o ., lt d. all right s reserved. tsz022 01-0 r 7 r 0g 300 03 0-1 - 2 tsz221 1 1 ? 15 ? 001 4/13 08.jul.201 2.rev . 006 bd48xxx series bd49xxx series dat a sheet line up marking detection v o lt age part number marking detection v o lt age part number marking detection v o lt age part number marking detection v o lt age part number ew 6.0v bd4860 eb 4.1v bd4841 gw 6.0v bd4960 gb 4.1v bd4941 ev 5.9v bd4859 ea 4.0v bd4840 gv 5.9v bd4959 ga 4.0v bd4940 eu 5.8v bd4858 dv 3.9v bd4839 gu 5.8v bd4958 fv 3.9v bd4939 et 5.7v bd4857 du 3.8v bd4838 gt 5.7v bd4957 fu 3.8v bd4938 es 5.6v bd4856 dt 3.7v bd4837 gs 5.6v bd4956 ft 3.7v bd4937 er 5.5v bd4855 ds 3.6v bd4836 gr 5.5v bd4955 fs 3.6v bd4936 eq 5.4v bd4854 dr 3.5v bd4835 gq 5.4v bd4954 fr 3.5v bd4935 ep 5.3v bd4853 dq 3.4v bd4834 gp 5.3v bd4953 fq 3.4v bd4934 en 5.2v bd4852 dp 3.3v bd4833 gn 5.2v bd4952 fp 3.3v bd4933 em 5.1v bd4851 dn 3.2v bd4832 gm 5.1v bd4951 fn 3.2v bd4932 el 5.0v bd4850 dm 3.1v bd4831 gl 5.0v bd4950 fm 3.1v bd4931 ek 4.9v bd4849 dl 3.0v bd4830 gk 4.9v bd4949 fl 3.0v bd4930 ej 4.8v bd4848 dk 2.9v bd4829 gj 4.8v bd4948 fk 2.9v bd4929 eh 4.7v bd4847 dj 2.8v bd4828 gh 4.7v bd4947 fj 2.8v bd4928 eg 4.6v bd4846 dh 2.7v bd4827 gg 4.6v bd4946 fh 2.7v bd4927 ef 4.5v bd4845 dg 2.6v bd4826 gf 4.5v bd4945 fg 2.6v bd4926 ee 4.4v bd4844 df 2.5v bd4825 ge 4.4v bd4944 ff 2.5v bd4925 ed 4.3v bd4843 de 2.4v bd4824 gd 4.3v bd4943 fe 2.4v bd4924 ec 4.2v bd4842 dd 2.3v bd4823 gc 4.2v bd4942 fd 2.3v bd4923 marking detection v o lt age part number marking detection v o lt age part number marking detection v o lt age part number marking detection v o lt age part number cm 6.0v bd48e60 be 4.1v bd48e41 ff 6.0v bd49e60 ea 4.1v bd49e41 ck 5.9v bd48e59 bd 4.0v bd48e40 fe 5.9v bd49e59 dy 4.0v bd49e40 ch 5.8v bd48e58 bc 3.9v bd48e39 fd 5.8v bd49e58 dr 3.9v bd49e39 cg 5.7v bd48e57 bb 3.8v bd48e38 fc 5.7v bd49e57 dp 3.8v bd49e38 cf 5.6v bd48e56 ba 3.7v bd48e37 fb 5.6v bd49e56 dn 3.7v bd49e37 ce 5.5v bd48e55 ay 3.6v bd48e36 fa 5.5v bd49e55 dm 3.6v bd49e36 cd 5.4v bd48e54 ar 3.5v bd48e35 ey 5.4v bd49e54 dk 3.5v bd49e35 cc 5.3v bd48e53 ap 3.4v bd48e34 er 5.3v bd49e53 dh 3.4v bd49e34 cb 5.2v bd48e52 an 3.3v bd48e33 ep 5.2v bd49e52 dg 3.3v bd49e33 ca 5.1v bd48e51 am 3.2v bd48e32 en 5.1v bd49e51 df 3.2v bd49e32 by 5.0v bd48e50 ak 3.1v bd48e31 em 5.0v bd49e50 de 3.1v bd49e31 br 4.9v bd48e49 ah 3.0v bd48e30 ek 4.9v bd49e49 dd 3.0v bd49e30 bp 4.8v bd48e48 ag 2.9v bd48e29 eh 4.8v bd49e48 dc 2.9v bd49e29 bn 4.7v bd48e47 af 2.8v bd48e28 eg 4.7v bd49e47 db 2.8v bd49e28 bm 4.6v bd48e46 ae 2.7v bd48e27 ef 4.6v bd49e46 da 2.7v bd49e27 bk 4.5v bd48e45 ad 2.6v bd48e26 ee 4.5v bd49e45 cy 2.6v bd49e26 bh 4.4v bd48e44 ac 2.5v bd48e25 ed 4.4v bd49e44 cr 2.5v bd49e25 bg 4.3v bd48e43 ab 2.4v bd48e24 ec 4.3v bd49e43 cp 2.4v bd49e24 bf 4.2v bd48e42 aa 2.3v bd48e23 eb 4.2v bd49e42 cn 2.3v bd49e23
www .rohm.com ? 2012 r o hm c o ., lt d. all right s reserved. tsz022 01-0 r 7 r 0g 300 03 0-1 - 2 tsz221 1 1 ? 15 ? 001 5/13 08.jul.201 2.rev . 006 bd48xxx series bd49xxx series dat a sheet marking detection v o lt age part number marking det e ct ion v o lt age part number marking det e ct ion v o lt age part number marking detection v o lt age part number cm 6.0v bd48k60 be 4.1v bd48k41 ff 6.0v bd49k60 ea 4.1v bd49k41 ck 5.9v bd48k59 bd 4.0v bd48k40 fe 5.9v bd49k59 dy 4.0v bd49k40 ch 5.8v bd48k58 bc 3.9v bd48k39 fd 5.8v bd49k58 dr 3.9v bd49k39 cg 5.7v bd48k57 bb 3.8v bd48k38 fc 5.7v bd49k57 dp 3.8v bd49k38 cf 5.6v bd48k56 ba 3.7v bd48k37 fb 5.6v bd49k56 dn 3.7v bd49k37 ce 5.5v bd48k55 ay 3.6v bd48k36 fa 5.5v bd49k55 dm 3.6v bd49k36 cd 5.4v bd48k54 ar 3.5v bd48k35 ey 5.4v bd49k54 dk 3.5v bd49k35 cc 5.3v bd48k53 ap 3.4v bd48k34 er 5.3v bd49k53 dh 3.4v bd49k34 cb 5.2v bd48k52 an 3.3v bd48k33 ep 5.2v bd49k52 dg 3.3v bd49k33 ca 5.1v bd48k51 am 3.2v bd48k32 en 5.1v bd49k51 df 3.2v bd49k32 by 5.0v bd48k50 ak 3.1v bd48k31 em 5.0v bd49k50 de 3.1v bd49k31 br 4.9v bd48k49 ah 3.0v bd48k30 ek 4.9v bd49k49 dd 3.0v bd49k30 bp 4.8v bd48k48 ag 2.9v bd48k29 eh 4.8v bd49k48 dc 2.9v bd49k29 bn 4.7v bd48k47 af 2.8v bd48k28 eg 4.7v bd49k47 db 2.8v bd49k28 bm 4.6v bd48k46 ae 2.7v bd48k27 ef 4.6v bd49k46 da 2.7v bd49k27 bk 4.5v bd48k45 ad 2.6v bd48k26 ee 4.5v bd49k45 cy 2.6v bd49k26 bh 4.4v bd48k44 ac 2.5v bd48k25 ed 4.4v bd49k44 cr 2.5v bd49k25 bg 4.3v bd48k43 ab 2.4v bd48k24 ec 4.3v bd49k43 cp 2.4v bd49k24 bf 4.2v bd48k42 aa 2.3v bd48k23 eb 4.2v bd49k42 cn 2.3v bd49k23 marking detection v o lt age part number marking det e ct ion v o lt age part number marking det e ct ion v o lt age part number marking detection v o lt age part number kb 6.0v bd48l60 gn 4.1v bd48l41 np 6.0v bd49l60 mg 4.1v bd49l41 ka 5.9v bd48l59 gm 4.0v bd48l40 nn 5.9v bd49l59 mf 4.0v bd49l40 hy 5.8v bd48l58 gk 3.9v bd48l39 nm 5.8v bd49l58 me 3.9v bd49l39 hr 5.7v bd48l57 gh 3.8v bd48l38 nk 5.7v bd49l57 md 3.8v bd49l38 hp 5.6v bd48l56 gg 3.7v bd48l37 nh 5.6v bd49l56 mc 3.7v bd49l37 hn 5.5v bd48l55 gf 3.6v bd48l36 ng 5.5v bd49l55 mb 3.6v bd49l36 hm 5.4v bd48l54 ge 3.5v bd48l35 nf 5.4v bd49l54 ma 3.5v bd49l35 hk 5.3v bd48l53 gd 3.4v bd48l34 ne 5.3v bd49l53 ky 3.4v bd49l34 hh 5.2v bd48l52 gc 3.3v bd48l33 nd 5.2v bd49l52 kr 3.3v bd49l33 hg 5.1v bd48l51 gb 3.2v bd48l32 nc 5.1v bd49l51 kp 3.2v bd49l32 hf 5.0v BD48L50 ga 3.1v bd48l31 nb 5.0v bd49l50 kn 3.1v bd49l31 he 4.9v bd48l49 fy 3.0v bd48l30 na 4.9v bd49l49 km 3.0v bd49l30 hd 4.8v bd48l48 fr 2.9v bd48l29 my 4.8v bd49l48 kk 2.9v bd49l29 hc 4.7v bd48l47 fp 2.8v bd48l28 mr 4.7v bd49l47 kh 2.8v bd49l28 hb 4.6v bd48l46 fn 2.7v bd48l27 mp 4.6v bd49l46 kg 2.7v bd49l27 ha 4.5v bd48l45 fm 2.6v bd48l26 mn 4.5v bd49l45 kf 2.6v bd49l26 gy 4.4v bd48l44 fk 2.5v bd48l25 mm 4.4v bd49l44 ke 2.5v bd49l25 gr 4.3v bd48l43 fh 2.4v bd48l24 mk 4.3v bd49l43 kd 2.4v bd49l24 gp 4.2v bd48l42 fg 2.3v bd48l23 mh 4.2v bd49l42 kc 2.3v bd49l23
www .rohm.com ? 2012 r o hm c o ., lt d. all right s reserved. tsz022 01-0 r 7 r 0g 300 03 0-1 - 2 tsz221 1 1 ? 15 ? 001 6/13 08.jul.201 2.rev . 006 bd48xxx series bd49xxx series dat a sheet a b so lu te maximu m ratin g s (t a= 25c) parameter s y mbol limit s unit po w e r su ppl y v o lt age v dd -gnd -0.3 to +10 v nch open dr ai n output gnd-0.3 to +10 output v o lt age cmos output v out gnd-0.3 to v dd +0 .3 v s s o p 5 *1*3 540 po w e r dissip a tion v s o f 5 *2*3 pd 210 mw operatin g t e mperatur e t opr -40 to + 105 c ambient s t ora ge t e mperatur e t s tg -55 to + 125 c *1 u s e abov e t a =25c re sult s in a 5.4m w lo ss p e r d e g ree. *2 use abov e t a =25 c resu lt s in a 2.1m w loss per degree . *3 w h e n a roh m st a ndard ci rcu it b oard (7 0mm70mm1.6mm gla s s e poxy board) is moun te d. electrical c h aract eristics (unl ess oth e rw ise s p ecified t a = - 40 to 10 5c) limit parameter s y mbol condition min. t y p. max. unit detectio n v o lt a ge v de t r l = 470k ? , v dd =h ? l *1 v de t (t ) 0 .99 v de t (t ) v de t (t ) 1 .01 v output delay t i me ?l ? h? t plh c l = 100pf r = 100k ? *2 v out= g nd ? 50% - - 100 s v de t = 2 .3-3.1v - 0.51 1.53 v det = 3 .2-4.2v - 0.56 1.68 v det = 4 .3-5.2v - 0.60 1.80 circuit current wh en on i cc 1 v dd =v de t -0.2v *1 v de t = 5 .3-6.0v - 0.66 1.98 a v de t = 2 .3-3.1v - 0.75 2.25 v det = 3 .2-4.2v - 0.80 2.40 v det = 4 .3-5.2v - 0.85 2.55 circuit current wh en off i cc 2 v dd =v de t +2 .0 v *1 v de t = 5 .3-6.0v - 0.90 2.70 a v ol 0.4v , t a =25 to 105 c, r l = 470k ? 0.95 - - operating vo lt age r ang e v opl v ol 0.4v , t a = - 40 to 25c, r l = 470k ? 1.20 - - v v ds =0.5v , v dd =1.5v , v de t = 2 .3-6.0v 0.4 1.0 - ?low?o utput c u rrent (nch) i ol v ds =0.5v , v dd =2.4v , v de t = 2 .7-6.0v 2.0 4.0 - ma v ds =0 .5 v , v dd =4.8v , v de t = 2 .3-4.2v 0.7 1.4 - v ds =0 .5 v , v dd =6.0v , v de t = 4 .3-5.2v 0.9 1.8 - ?high?output current (pch) (bd49xxx series) i oh v ds =0 .5 v , v dd =8.0v , v de t = 5 .3-6.0v 1.1 2.2 - ma leak c u rrent w hen of f (bd48xxx series) i le a k v dd =v ds = 10v *1 - - 0.1 a detectio n v o lt a ge t e mperature c oef ficie n t v de t / ? t t a = - 40c to 105c (desig ne d gua r antee) - 10 0 36 0 ppm/c h y ster esis v o ltage ? v de t v dd =l ? h ? l v de t 0 .03 v de t 0 .05 v de t 0 .0 8 v v de t (t ) : s t andard d e tection v o lt age( 2.3v to 6.0v , 0.1v step) r l : pull-up re sistor to be con nected b e t w e e n v out and p o w e r sup p l y . c l : cap a citor to be conn ecte d bet w e en v out and gnd. desig n e d guar antee. (outgoi ng ins pec tio n i s not done on all pro duct s .) *1 guar antee is t a = 25c. *2 t plh :v dd =(v det typ.-0.5v) ? (v det typ.+0.5v)
www .rohm.com ? 2012 r o hm c o ., lt d. all right s reserved. tsz022 01-0 r 7 r 0g 300 03 0-1 - 2 tsz221 1 1 ? 15 ? 001 7/13 08.jul.201 2.rev . 006 bd48xxx series bd49xxx series dat a sheet blo ck diag rams f i g.1 bd48 xxx series f i g.2 bd49 xxx series v out v dd gnd vref v out v dd gnd vref
www .rohm.com ? 2012 r o hm c o ., lt d. all right s reserved. tsz022 01-0 r 7 r 0g 300 03 0-1 - 2 tsz221 1 1 ? 15 ? 001 8/13 08.jul.201 2.rev . 006 bd48xxx series bd49xxx series dat a sheet t y p i cal perf o rman ce cu r ves f i g.3 circuit c u rrent 0.0 0.5 1.0 1.5 2.0 01 2345 678 9 1 0 v dd suppl y vo l t ag e v dd [v ] circuit current i dd [ a] bd4842g/fve 0 5 10 15 20 0. 0 0 . 5 1. 0 1 . 5 2. 0 2 . 5 dra i n- s o urce v o l t a g e v ds [v ] " l ow " out p ut current i ol [m a] bd4842g/fve v dd =2 . 4 v v dd =1 . 2 v fig.4 ?low? output current fig.6 i/o characteristics 0 1 2 3 4 5 6 7 8 9 00 . 5 11 . 5 22 . 5 33 . 5 44 . 5 55 . 5 v dd su ppl y v o l t ag e v dd [v ] output voltage v out [v] b d 48 42g / f v e ta = 2 5 ta=25 0 5 10 15 20 25 30 35 40 45 01 23 45 6 dra i n - s o urc e vo l t ag e v ds [v ] "high" output current i oh [ma] b d 4942 g/fv e v dd =8.0v v dd =6.0v v dd =4 . 8 v fig.5 ?high? output current bd49x42 bd49 x42 bd48x42 bd49 x42 bd48x42 bd49x42 bd48x42
www .rohm.com ? 2012 r o hm c o ., lt d. all right s reserved. tsz022 01-0 r 7 r 0g 300 03 0-1 - 2 tsz221 1 1 ? 15 ? 001 9/13 08.jul.201 2.rev . 006 bd48xxx series bd49xxx series dat a sheet fig.7 operating limit voltage [v] 0.0 0.2 0.4 0.6 0.8 1.0 0 0.5 1 1.5 2 2.5 supply voltage : o u tp ut vol t a g e : v out [v] bd48 42g/ f ve fig.9 circuit current when on 0.0 0. 5 1. 0 1. 5 - 40 - 20 0 2 0 40 60 80 100 t e m p e ra t ure ta [ ] circuit current when on i dd1 [ a] bd4842g / f v e f i g. 10 circu i t current w h en of f 0.0 0.5 1. 0 1. 5 - 40 - 20 0 20 40 60 80 100 t em pe r at u r e ta [ ] circuit current when off i dd2 [ a] bd 48 42g / f v e bd48x42x bd48x42x bd48 x42 x bd49x42 bd48x42 bd49x42 bd48x42 bd49x42 bd48x42 f i g. 8 det ect i o n v o lt age rele a se v o lt a g e 3.0 3.4 3.8 4.2 4.6 5.0 5.4 -40 0 40 80 tempera t ure : ta [ ] detecti o n v o l t a g e : v det [v] bd4842g/f ve low to high(v det + v det high to low(v det bd48x42x bd49x42 bd48 x42
www .rohm.com ? 2012 r o hm c o ., lt d. all right s reserved. tsz022 01-0 r 7 r 0g 300 03 0-1 - 2 tsz221 1 1 ? 15 ? 001 10/13 08.jul.201 2.rev . 006 bd48xxx series bd49xxx series dat a sheet fig.11 operating limit voltage 0.0 0.5 1.0 1.5 -40 - 20 0 2 0 4 0 6 0 8 0 100 t e m perat ure ta [ ] minimum operat ion voltage v opl [v] bd4842g/fve bd48x42x bd49x42 bd48x42
www .rohm.com ? 2012 r o hm c o ., lt d. all right s reserved. tsz022 01-0 r 7 r 0g 300 03 0-1 - 2 tsz221 1 1 ? 15 ? 001 11 / 1 3 08.jul.201 2.rev . 006 bd48xxx series bd49xxx series dat a sheet a pplic a t ion informa tion exp l an atio n of op eratio n f o r bot h t he open dra i n t y p e (f ig. 12) and t he cmos out put t y pe (f ig. 1 3 ) , t he det ect i on and releas e volt ages ar e used as t h resho l d volt a ges. when t h e volt age ap pli e d t o t he v dd pins reach e s t he appl icab le t h reshol d volt ag e, t he v out t e rminal volt age s w it ch es f r om eit h er ?high? t o ?lo w ? or f r om ?l o w ? t o ?hi gh?. pleas e ref e r t o t he t i ming w a vef o rm a nd e l ect r ica l charact e rist ics f o r inf o rmat ion on h y st eresis. becaus e t he b d 48 xxx ser i es uses a n op en drain out p u t t y pe, it is poss i b l e t o co nnect a pul l-up r e sist or t o v dd or a not her po w e r s upp l y [ t he out put ?high? volt a ge (v out ) in t h is case becom es v dd o r t he volt age of t he ot her po w e r supp l y ] . f i g. 12 (bd4 8 xxx seri es i n t e rn al block di agr a m ) f i g. 13 (bd4 9 xxx seri es i n t e rn al block di agr a m ) refer e n ce d a t a exam ples of leadi ng (t plh ) and f a lli ng (t ph l ) out put part number t plh ( s) t ph l ( s) bd48x45 39.5 87.8 bd49x45 32.4 52.4 v dd =4.3v ? 5.1v v dd =5.1v ? 4.3v *t his dat a is f o r ref e rence o n l y . t he f i gures w i ll var y w i t h t h e a pplic at io n, so pl ease c onf irm a c t ual op erat in g condit i ons bef ore use. t i ming w a v e f o rm exam ple: t he f o llo w i n g sho w s t he relat i onsh i p bet w e en t h e input volt a ges v dd and t h e o u t put volt ag e v out w hen t h e input p o w e r su ppl y volt a ge v dd is made t o sw e ep up an d s w e ep do w n (t h e circuit s are t h ose in f i g. 1 2 a nd 13). 1 when t he po w e r suppl y is t u rne d on, t he out put is unset t l ed f r om af t e r over t he oper at ing limit volt age (v opl ) unt il t ph l . t heref ore it is possib l e t h at t he reset si gna l i s not vali d w h e n t he ris e t i me of v dd is f a st er t han t ph l . 2 when v dd is great er t h a n v opl but less t han t he reset rele ase volt age (v de t + ? v de t ), t he out put volt ages w ill s w it ch t o l o w . 3 if v dd exce e d s t he reset releas e volt ag e (v det + ? v det ), t hen v out sw itche s fro m l to h . 4 if v dd drop s belo w t he d e t e ct ion volt a ge ( v de t ) w hen t h e po w e r suppl y is p o w e red d o w n or w hen t h ere is a po w e r s u p p l y f l uct uat io n, v out s w it ch es t o l ( w it h a d e l a y of t ph l ). 5 t he pot ent ial dif f ere n ce b e t w e e n t he d e t e ct ion volt a ge a nd t h e releas e volt ag e is kno w n a s t he h y st ere s is w i d t h ( ? v de t ). t he s y st em is desi gne d such t hat t he out put does not f lip-f lop w i t h po w e r suppl y f l uct uat i ons w i t h i n t h is h y st er esis w i d t h, prevent i ng malf unct i ons d ue t o nois e . v dd v de t + v de t v de t v op l 0v t phl v out t plh t ph l t pl h v ol v oh f i g. 14 t i ming w a vef o rm vr e f r1 r2 v dd gnd q1 v out r3 r l vref r1 r2 r3 q2 q1 v dd v out gnd
www .rohm.com ? 2012 r o hm c o ., lt d. all right s reserved. tsz022 01-0 r 7 r 0g 300 03 0-1 - 2 tsz221 1 1 ? 15 ? 001 12/13 08.jul.201 2.rev . 006 bd48xxx series bd49xxx series dat a sheet circ uit a ppl ic a t ions exam ples of a common p o w e r suppl y d e t e ct i on reset circu i t . applic at io n e x amples of bd48 xxx seri es (open drai n out put t y pe) a nd bd4 9 xxx s e ries (cmos o u t put t y p e ) are sho w n bel o w . case1: the po w e r suppl y of the microcontroller (v dd2 ) dif f ers f r om t h e po w e r su ppl y of t he reset det ect i on (v dd1 ). use a n o pen drain out p u t t y pe (bd 4 8 xxx) device w i t h a load r e sist anc e r l at t a ched as sho w n i n f i gur e 15. case2: the po w e r s uppl y of the microc ont roller (v dd1 ) is same as t he p o w e r su ppl y of t he reset det ect i on (v dd1 ). use a cmos out put t y p e (b d49 xxx) d e vic e or a n op en drain devic e w i t h a pul l up r e sist or bet w e e n out put a n d vdd1. when a ca p a ci t ance c l f o r n o ise f ilt er ing is connect ed t o t he v out pin (t he reset signa l inp u t t e rminal of t he microcont ro ller ) , please t a k e i n t o acco unt t h e w a vef o rm of t he rise an d f a ll of t he out put volt age (v out ). t he elect r ical charact e rist ics w e re meas ure d usin g r l = 470k ? an d c l = 100pf . fi g. 16 cmos out put t y pe v dd1 bd48xxx v dd2 gnd micro controller r st c l ( cap a citor is for n o ise f ilt e r in g r l c l ( cap a ci tor i s for filte r ing v dd1 bd49xxx micro cont roll er r st gnd f i g. 15 open d r ain out put t y p e
www .rohm.com ? 2012 r o hm c o ., lt d. all right s reserved. tsz022 01-0 r 7 r 0g 300 03 0-1 - 2 tsz221 1 1 ? 15 ? 001 13/13 08.jul.201 2.rev . 006 bd48xxx series bd49xxx series dat a sheet op eratio n a l no tes 1 . ab so lu te m a ximum range absol u t e maxi mum rat i ngs are t hose valu es be yon d w h i c h t he lif e of a device ma y be dest r o y ed. w e cannot be def i ned t h e f a ilure m ode, s u ch as sh ort mode or o p e n mode. t heref ore a ph ysica l sec u rit y co unt erm easur e, like f u s e , is t o be give n w h e n a specif ic mo d e t o be be yo nd absol ut e ma xi mum rat i ngs is consid ere d . 2 . gnd pot ent ial gnd t e rminal shoul d be a l o w e st volt ag e p o t ent ia l ever y s t at e. pleas e make s u re all pins, w h ich are ov er gr oun d even if , in clude t r a n sie n t f eat ure. 3 . elect r ical c haract e rist ics be sure t o che ck t he elect r ica l charact e rist ic s t hat are one t he t ent at ive s pecif icat i on w i ll be chan ge d b y t e mper at ure, suppl y volt age, a nd e x t e rnal circu i t . 4 . b y p a ss cap a citor for nois e rejecti on pleas e put int o t he cap a cit o r of 1 f or more bet w e e n v dd pin a nd gnd, and t he c a p a c i t o r of about 1 0 00pf bet w e e n v out pin and gn d, t o re ject no ise. i f e x t r emel y b i g c a p a cit o r is use d , t r ansie nt resp onse m i ght be lat e . ple a se c o nf irm suf f ici ent l y f o r th e point . 5 . short circui t bet w e en t e rm inal a nd so lder ing don?t s hort - circ uit bet w e en ou t put pin an d v dd pin, out p ut pi n an d gnd pin , or v dd p i n a n d gnd p i n. when s o ld erin g t he i c on circuit bo ar d, pleas e be unus ual l y c aut i ous ab out t h e orient at io n an d t he posit i o n of t he i c . when t he ori entat ion is mist aken t he i c ma y b e dest r o y ed. 6 . elect r omag net ic f i el d mal-f unct i o n ma y h a p pen w h e n t he devic e is used i n t he st rong e l ect r oma gnet ic f i e l d. 7 . t he v dd lin e inp eda nce mi ght cause osc i l l at ion beca u se of t he det ect i o n current . 8. a v dd -gn d cap a cit o r (as close con nect i on as poss i bl e) shoul d be us e d in hi gh v dd line imp eda nce condit i on. 9 . lo w e r t h a n t he mini num in put volt ag e ma kes t he v out h i gh imp e d ance, and it must be v dd in pul l up (v dd ) condition. 10. t h is i c ha s ext r emel y hi gh imped anc e t e rminals. sma ll leak current due t o t he uncl ean ness of pcb surf ace might cause une xpect ed o p erat io ns. appli c at ion val ues i n t hese condit i ons shou ld be select ed care f u ll y . i f t he leakage is assum ed bet w e en t he v out t e rminal a nd t he gnd t e rminal, t he pul l - up resist or sh ould b e less t han 1/ 10 of t he assumed leak age resist ance. 1 1 . ex te rna l p a ra me te rs t he recomme nde d p a r a mete r ran ge f o r r l is 10k ? to 1m ? . t here are man y f a ct ors (board la yo ut , et c) t hat can af f e ct charact e rist ics. please ver i f y and co nf irm usi ng pract i c a l ap plicat i ons. 12. po w e r o n reset oper at ion pleas e not e t h at t he po w e r o n reset out put varies w i t h t h e v dd rise u p time . ple a s e ve rify th e a c tua l ope ra tion . 13. precaut i o n s f o r board ins pect i o n conn ect i n g lo w - im pe danc e c a p a cit o rs t o r u n insp ect i o n s w i t h t he boar d ma y prod uce s t ress on t he i c . t heref ore, be cert ain t o use prop er d i scharg e proc e dure b e f o re e a c h process of t he t e st operat i on. t o prevent el ect r ost a t i c acc u mulat i on a n d dischar ge in t he assembl y proc ess, t horou ghl y gr ou nd yours e lf a nd an y equi pme n t t hat could sust ain esd damag e, and cont i n u e obser vin g esd- p reve nt ion pr o c edur es in all han din g , t r ansf e r and st orage oper at i ons. bef o re at t e mpt i n g t o con nect comp one nt s t o t he t e st set up, make c e rt ain t hat t h e po w e r s u p p l y i s of f . like w i se, be s u re t he po w e r suppl y is of f bef ore rem o vin g an y comp on ent conn ect ed t o t he t e st set up. 14. when t he po w e r su ppl y , i s t u rned on be cause of in cer t ain cases, moment ar y r a sh- c urrent f l o w int o t he i c at t h e logic unset t l e d , t he coupl e cap a cit a nce, gnd p a t t e rn of w i d t h a n d lea d in g lin e must be consi d ered. s t at us of t h is docume n t t he jap anes e version of t h is docum ent is f o rmal spec if icat i on. a cust omer ma y use t h is t r anslat i on v e rsi on o n l y f o r a re f e rence t o help re adi ng t he f o rmal ver s ion. i f t here are an y dif f erenc es in t r anslat i on vers i on of t h is doc u m ent f o rmal ve rsion t a kes pri o rit y .
datasheet d a t a s h e e t notice - rev . 003 ? 2012 r o hm c o ., lt d. all right s reserved. notice g e n e ra l prec aut io n 1) before yo u us e our pro duct s , y ou are req u e sted to care f u ll y re ad this docum ent an d full y un derst a nd it s conte n t s. rohm shall n o t be in an y w a y res p o n sib l e or liabl e for fa ilur e , malfunc tion or acci den t arising from the use of a n y rohm? s prod u ct s against w a r n ing, ca ution o r note cont ai ne d in this doc um ent. 2) all informatio n cont ained in this docume n t is current as of the issuing date and subj ec t to change w i thout an y pri o r notice. before purchasi ng o r using roh m ? s product s, pleas e confirm the la test information w i t h a rohm sale s represe n t a tive. pr ec aut io n on us in g rohm pr od ucts 1) our products are design ed an d manufacture d for applicat io n in ordinar y el ectronic eq uipm ents (such as av equipment , oa equipm ent , telecommun i cation e qui pm ent, home el e ctroni c ap pli a n ces, amuseme n t equi pment, etc.). if y ou inten d to us e our pro ducts i n dev ices r e q u irin g e x trem el y hig h rel i a b ili t y (suc h as m edica l e qui pm ent, transp o rt equipment, traffic equipment, aircraft/spacec ra ft, nuclear pow er controllers, fuel c ontrollers , car equipm ent including car accessori es, safet y d e vices, etc.) and w h o se malfuncti on or failure ma y caus e loss of human l i fe, bodil y i n j u r y or serious d a ma g e to propert y (?specific ap plic ations?), ple a s e consu l t w i t h the rohm sal e s repres entati ve in adv ance. unless oth e r w i se agree d in w r iting b y roh m in advanc e, ro hm shall n o t be in an y wa y res pons ibl e or liable for a n y dama ges, e x p enses or loss e s incurred b y you or third parti es arisin g from the use of an y ro hm?s prod ucts for specific applic atio ns. 2) rohm desig n s and man u fa ctures its products subj ect to strict qualit y co ntrol s y stem. ho w e v e r, semicon ducto r prod ucts can f a il or m a lfuncti on at a c e rtain rate. pleas e b e sure to im ple m ent, at your o w n res p o n sib i lities, ad eq uate safet y me asur es inclu d in g bu t not limited to fail-safe d e si g n against the p h y sic a l in jur y , d a mag e to an y prop ert y , w h ic h a failur e or mal f unction of o u r products ma y cause. t he follo w i n g are e xa m ples of safet y measures: [a] installation of protection ci rcuits or other protective d e vi ces to improve s y stem safet y [b] installation of redun da nt circuits to reduc e the impact of single or multi p le circu i t failur e 3) our products are des ign ed and ma nufact u red for us e und er stand ar d cond itions a nd not u n d e r an y spec ial or extra o rdi nar y enviro n me nts or cond itio ns, as e x emp lifi ed b e lo w . ac cordin gl y, ro hm shal l not be in an y w a y respo n sib l e or liab l e for an y d a mag e s, exp e n ses or losses arising from the use of an y rohm?s prod ucts under an y specia l or e x t r aordi nar y e n v i ronme n ts or conditi ons. if y o u inten d to use our pr oducts un der an y spec ial or extra o rdi nar y enviro n me nts or conditio n s (as exem plifi e d bel o w ), y o ur inde pen de nt verification an d confirmatio n of prod uct perfor m ance, reli ab ili t y , etc, prior to use, must be n e cessar y : [a] use of our products in a n y t y pes of li qui d, incl u d in g w a ter, oils, chemi cals, and or ga nic solve n ts [b] use of our products outd o o rs or in pl aces w h ere the pro ducts are e x p o sed to direct su nlig ht or dust [c] use of our products in pla ces w h ere the products ar e e x p o se d to sea w i nd or corros i ve gases, inclu d ing cl 2 , h 2 s, nh 3 , so 2 , and no 2 [d] use of our products in p l a ces w h er e the products are e x p o se d to static electricit y or electroma g n e ti c w a v e s [e] use of our products in pr o x im it y to h eat-p roducing com p one nts, plastic cords, or other flammabl e item s [f] sealing or coating our products w i t h resin or other coating materials [g] use of our products w i th o u t cleani ng res i due of flu x (ev en if y o u use n o -clea n t y pe fl uxes, clea nin g residu e of flux is rec o mmend ed); or w a shing our pr od ucts b y usi ng w a t e r or w a ter - solub l e cl ea ni ng a gents for clean in g residu e after solder in g [h] use of the products in p l a ces subj ect to de w co nde nsat ion 4) t he products are not subj ec t to radi ation- pro o f desig n. 5) pleas e verif y a nd confirm ch a r acteristics of the fina l or mou n ted pro ducts i n usin g the pro ducts. 6) in particular, if a transient load (a large am ount of load a ppli ed in a sho r t per iod of time, such as pulse) is applie d, confirmatio n of performanc e characteristics after on-bo ar d mounti ng is strongl y rec o mm end ed. avoid appl yi n g po w e r exc e e d in g nor mal rated po w e r; exc eedin g the po w e r rati n g und er stead y-state load in g c onditi on ma y neg ativel y affe ct prod uct perfor m ance a nd rel i abil i t y . 7) de-rate po w e r dissip a tion (p d ) depe ndi ng o n ambient temp er ature (t a). when us ed i n se al ed area, co nfirm the actual ambie n t tempe r ature. 8) confirm that o peration tempe r ature is w i thi n t he specifi ed ra nge d e scrib ed i n the prod uct specificati on. 9) rohm shall n o t be in a n y w a y r e spo n sib l e or lia ble for fa i l u re in duce d un der dev iant co ndi tio n from w hat is defi ned i n this docum ent.
datasheet d a t a s h e e t notice - rev . 003 ? 2012 r o hm c o ., lt d. all right s reserved. pr ec aut io n fo r mo unt in g / c i rc uit b o a r d de si gn 1) w hen a hig h l y active hal og en ous (chlor ine, bromin e, etc.) flu x is used, the resi due of flu x ma y ne gative l y affect prod uct performa nce a nd reli ab ilit y . 2) in princip l e, the reflo w sol der ing meth od mu st be used; if flo w s o ld erin g method is pref erred, ple a se c onsult w i th th e rohm represe n tative in a d va nce. f o r details, pl e a se refer to r o hm mountin g specificati o n pr ec aut io ns r e gar di ng a ppl ic atio n e xamp l e s a nd e x t e rn al circ u its 1) if change is m ade to th e con stant of an e x t e rnal c i rcuit, pl ease all o w a s u fficient mar g i n c onsi deri ng variatio ns of th e characteristics of the prod ucts and e x te rnal com pon e n ts, includ ing transient ch a r acteri stics, as w e ll as stati c characteristics. 2) you agr ee that applic atio n no tes, re ference desig ns, and a ssociate d data and in form atio n contai ned i n this docum ent are prese n ted onl y as g u id ance for prod ucts use. t h eref ore, in cas e y o u use su ch informatio n , you are sol e l y respo n sib l e for it and y o u must exercis e you r o w n i n d epe n dent verificati o n and ju dgme n t in the use of such informati o n contai ned in th i s docum ent. rohm shal l n o t be i n an y w a y respo n sib l e or lia ble f o r an y d a mag e s, e x p e n ses or loss es incurre d b y yo u or third parti e s arising from the use of suc h informatio n . pr ec aut io n fo r el ectrost a tic t h is product is electrostatic sensitive pro duc t, w h ich ma y b e damag ed du e to electrostatic discharg e . please take pro per cautio n in yo ur manufacturi ng process an d storage so th a t voltage e x c e edin g t he pro d u cts maxim u m rating w i l l not be appl ie d to pro d u cts. please t a ke spec ial c a re und er dr y co n d it ion (e.g. gro undi ng of hum an b o d y / e qui pment / sol der iron, isolati on from c harg ed ob jects , se tting of ioni zer, friction pre ventio n and te mperatur e / humidit y c ontrol). pr ec aut io n fo r stor ag e / t r a n s port a ti on 1) product perfor m ance a nd sol dere d conn ecti ons ma y deter i o ra te if the pro ducts are stor e d in the pl aces w h ere: [a] the products ar e expos ed to s ea w i n d s or cor r os ive g a ses, i n clud in g cl2, h 2 s, nh3, so2, and no2 [b] the temperatur e or humi d it y e x ce eds thos e recommen d e d b y rohm [c] the products ar e expos ed to di rect sunshi ne o r conde nsatio n [d] the products ar e expos ed to hi gh electrostati c 2) even und er rohm recommende d storage c onditi on, sold er abil i t y of prod u cts out of recommende d storage time peri o d ma y be d egr a ded. it is stron g l y recomm en ded to c onfirm sol der abi lit y b e fore usi ng pr oducts of w h ic h storag e time is exc e e d in g the recommen d e d storage time p e riod. 3) store / transpo rt cartons in the co rrect direct ion, w h ic h is in dicate d on a c a rton w i th a s ymbol. other w i s e bent le ads ma y occ u r du e to excess ive s t ress appl ied w hen dr opp ing o f a carton. 4) use products w i t h in the s pec ified tim e after ope nin g a humidit y b a rrier ba g. bakin g is r e quire d b e fore u s ing pr oducts of w h ich stor age t i me is e x ce edi ng the recomm end ed storag e time perio d. pr ec aut io n fo r pro d u ct la be l qr code pri n te d on rohm products la bel is for rohm?s internal use on l y . pr ec aut io n fo r di sp ositi o n w hen dis posi n g products pl e a se dis pose th em prop er l y us ing a n auth o riz ed in dustr y w a ste compan y. pr ec aut io n fo r f o re ig n e x ch a n g e a nd f o re i gn tra de act since our pro d u cts might fall und er cont roll e d goods pr escr ibed b y the a p p lica b le fore ign exch ange an d foreign trade act, pleas e cons ult w i t h rohm re prese n tative in case of e x port. pr ec aut io n re g a rd in g inte lle ctu a l pr op ert y r i g h ts 1) all informatio n and data incl udin g but not limited to appl i cation e x am pl e contain ed in this document is for reference onl y. rohm d oes n o t w a rra n t that foregoi ng informati on or data w i ll not i n fring e an y int e llectu a l prop e r t y rig h ts or a n y other rights of an y thir d part y regard i n g such information or data. rohm shall not be in a n y w a y resp on sible or lia ble for infring e men t of an y inte llec t ual pro pert y r i ghts or ot her d a mag e s arisi n g from use of such informati on or data.: 2) no lice n se, e xpressl y or imp l i ed, is grante d here b y und er a n y i n tell ectua l prop ert y ri ghts or other rig h ts of rohm or an y third parti es w i t h respect to the informati on c ontai ned i n this docume n t.
datasheet d a t a s h e e t notice - rev . 003 ? 2012 r o hm c o ., lt d. all right s reserved. oth er pr ecaut io n 1) t he informatio n cont a i ne d i n this doc umen t is provi ded on a n ?as is? basis and rohm do es not w a rrant th at al l informatio n co nt aine d in this document is accurate an d/o r error-free. rohm shall not be in an y w a y r e sp onsi b le or liab l e for an y d a mag e s, expe nses or losses incurred b y you or third p a rt ies resulti ng from inaccur a c y or errors of or concer nin g suc h informati on. 2) t h is document ma y n o t be re printe d or repr oduc ed, in w h o l e or in p a rt, w i t hout pri o r w r itten cons ent of rohm. 3) t he product s ma y not be dis a ssembl ed, co nverted, modifi ed, reprod uce d or other w i se change d w i t h out prior w r itten conse n t of rohm. 4) in no eve n t shall you use in an y w a y w h at s oever the pr o d u ct s and the r e late d technic a l informatio n c ont ain ed i n the product s or thi s docume n t for an y m ilit ar y p u rpos es, incl u d i ng b u t not limi t ed to, the dev elopm ent of m a ss-destructi on w e ap ons. 5) t he proper na mes of comp a n ies or pro ducts describe d in this docume n t are trademarks or registered t r ademarks of rohm, it s af filiated comp ani e s or third p a rtie s.

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