kk54123 ground fault interrupter earth leakage current detector description ordering information kk5 4123n plastic kk541 23d soic kk54123s sip-8 t a = -40 to 8 5 c for all packages . the kk 54123n/d is designed for use in earth leakage circuit interrupters for operat i on di rect l y off t h e ac li ne i n breakers. it cont ai ns pre regul at or, m a i n regul at or, aft e r regul at or, di fferent i a l am pl i f i e r, l e vel com p arat or, l a t c h ci rcui t . the i nput i n t h e di fferent i a l am p l a t c h ci rcui t . the i nput i n t h e di fferent i a l am pl i f i e r i s connect t o t h e secondary node of zero current t r ansform e r. the l e vel com p arat or generat e s hi gh l e vel when earth leakage current is greater than som e level. feature ? low power c onsum pt i on (p d =5m w ) 100v/ 200v ? 100v/200v com m on built-in voltage regulator ? hig h gain differen tial am p lifier ? high input sensitivity (v t = 6.1m v ty p.) ? m i n i mu m e x t e r n a l p a r t s ? large surge m a rgin ? w i de operat i ng tem p erat ure r a nge (t = -40 t o 85c ) ? hi gh noi s e im m uni t y ? m eet u. l. 943 st andards absolute maximum ratings ? suppl y vol t a ge ? suppl y c u rrent ? power di ssi pat i on ? operating tem p erature ? storage tem p erature 20v 8m a 200m w - 40 t o 85c - 55 t o 125c pin configuration ( top view ) kk 54123 kk54123
block diagram kk54123
recommended operating condition: t a =-30c to 80c p a r a m e t e r s y m b o l m i n . t y p . m a x u n i t suppl y vol t a ge v + 1 2 v vs-gnd capacitor cvs 1 f o s -gnd capacitor cos 1 f electrical characteristics parameter symbol c o n d t i o n s t e m p. (c) m i n . t y p . m a x . unit - 3 0 - - 5 8 0 2 5 - 4 0 0 5 3 0 suppl y c u rrent 1 l s1 v + =12v, v r - v i = 30 m v 8 5 - - 4 8 0 a * trip vo ltag e v t v + = 16v, v r - v i = x -30 85 4 6 . 1 9 m v (rm s) differential am p lifier out put c u rrent 1 i td1 v + = 16 v, v r - v i = 30 m v v od = 1.2 v 2 5 - 1 2 - - 3 0 a differential am p lifier ou tp u t current 2 i td2 v + = 16 v, v r - v i = short v od = 0.8 v 2 5 1 7 - 3 7 a l si = 580 a - 3 0 - 2 0 0 - l si = 530 a 2 5 - 1 0 0 - out put c u rrent i o v sc = 1. 4 v v os = 0. 8 v l si = 480 a 8 5 - 7 5 - a s c o n vo ltag e v sc on v + = 16 v 2 5 0 . 7 - 1 . 4 v s c input c u rrent i sc on v + = l2v 2 5 - - 5 a out put "l" c u rrent i osl v + = 12 v, v osl = 0.2 v -30 85 2 0 0 - - a input c l am p vo ltag e v ic v + = 12 v, i ic = 20 m a -30 85 4 . 3 - 6 . 7 v di fferent i a l input c l am p vol t a ge v idc i idc = 100m a -30 85 0 . 4 - 2 v m a x. c u rrent vo ltag e v sm i sm = 7 m a 2 5 2 0 - 2 8 v suppl y c u rrent 2 i s2 v os = 0.5 v, v r - v i = x -30 85 - - 1 2 0 0 a latch circu it off suppl y vol t a ge v+ off 25 0.5 v r e sponse ti m e t on v + = 16 v, v r - v i = 0.3 v 2 5 1 - 4 m s kk54123
typical performance curves kk54123
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typical application suppl y vol t a ge ci rcui t i s connect ed as a previ ous di ag ram . pl ease deci de const a nt s r 1 , r 2 , c 4 , and c 5 of a filter in order to keep at least 12v in vs, when norm a l supply current flows. in this case, please connect c4 (m ore than 1 ? ) and c2 (less than 1 ? ). zct and load resistance r l of zct are connect ed bet w een i nput pi n and . in this case protective resistance (r3=100 ? ) m u st b e in su lted . sen s itiv ity cu rren t is reg u l ated b y rl, an d o u t p u t o f am p lifier sh o w s in p i n . external capacitor c1 between pi n and gnd is used for noise rem oval. w h en l a rge current i s grounded i n t h e pri m ary si de (ac l i n e) of zc t, t h e wave form i n t h e secondary si de of zc t i s di st ort e d and som e si gnal s doesn?t appear i n t h e out put of am pl i f i e r. so pl ease connect a vari st or or a di ode (2pcs.) t o zc t i n paral l e l . lat c h ci rcui t i s used t o i n spect t h e out put l e vel of am pl i f i e r and t o suppl y gat e current on t h e ext e rnal sc r . w h en i nput pi n becom e s m o re t h an 1.1v (ty p .) l a t c h ci rcui t operat e s and suppl y gat e current i n t h e gat e of sc r connect ed t o t h e out put pi n . pin can be used i n t h e open st at e, but pl ease connect capaci t o r (about 0.047 ? ) bet w een pi n and . cap acito r c6 b e tween p i n and gnd i s used t o rem ove noi se and i s about 0.047 ? . kk54123
n s u f f i x p l as t i c di p ( m s ? 00 1b a ) sy m b o l m i n m a x a 8. 51 10. 16 b 6. 1 7 . 1 1 c 5. 33 d 0. 36 0. 56 f 1. 14 1. 78 g h j 0 10 k 2. 92 3. 81 no t e s : l 7. 62 8. 26 1. d i m e n s i o n s ?a ?, ?b ? d o n o t i n cl u d e m o l d f l as h o r p r o t r u s i o n s . m 0. 2 0 . 3 6 m a x i m u m m o l d f l a s h o r p r o t r u s i o n s 0. 25 m m ( 0 . 010) p e r s i d e . n 0. 38 d su f f i x so i c (m s - 0 1 2 a a) sy m b o l m i n m a x a 4. 8 5 b 3. 8 4 c 1. 35 1. 75 d 0. 33 0. 51 f 0. 4 1 . 2 7 g h j 0 8 no t e s : k 0. 1 0 . 2 5 1. d i m e n s i o ns a a n d b d o no t i n c l ud e m o l d f l a s h o r p r ot r u s i on . m 0. 19 0. 25 2. m a x i m u m m o l d f l a s h o r p r o t r u s i o n 0. 15 m m ( 0 . 006) p e r s i d e p 5. 8 6 . 2 fo r a ; fo r b ? 0. 25 m m ( 0 . 010) p e r s i d e . r 0. 25 0. 5 1. 27 5. 72 d i me n s i o n , mm d i me n s i o n , mm 2. 54 7. 62 a b h c k c m j f m p g d r x 4 5 se a t i n g pl a n e 0 . 25 (0 . 0 10 ) m t -t - 1 8 4 5 l h m j a b f g d se a t i n g pl a n e n k 0 . 2 5 ( 0 .01 0 ) m t -t - c 1 8 4 5 kk54123
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