View APW7062BKC-TRG_7553201.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 1 a n p e c r e s e r v e s t h e r i g h t t o m a k e c h a n g e s t o i m p r o v e r e l i a b i l i t y o r m a n u f a c t u r a b i l i t y w i t h o u t n o t i c e , a n d a d v i s e c u s t o m e r s t o o b t a i n t h e l a t e s t v e r s i o n o f r e l e v a n t i n f o r m a t i o n t o v e r i f y b e f o r e p l a c i n g o r d e r s . s y n c h r o n o u s b u c k p w m c o n t r o l l e r s i m p l e s i n g l e - l o o p c o n t r o l d e s i g n - v o l t a g e - m o d e p w m c o n t r o l f a s t t r a n s i e n t r e s p o n s e - f u l l 0 ? 1 0 0 % d u t y r a t i o e x c e l l e n t o u t p u t v o l t a g e r e g u l a t i o n - 0 . 8 v i n t e r n a l r e f e r e n c e - 1 % o v e r l i n e v o l t a g e a n d t e m p e r a t u r e o v e r c u r r e n t f a u l t m o n i t o r - u s e s u p p e r m o s f e t s r d s ( o n ) c o n v e r t e r c a n s o u r c e a n d s i n k c u r r e n t s m a l l c o n v e r t e r s i z e - 2 0 0 k h z f r e e - r u n n i n g o s c i l l a t o r - p r o g r a m m a b l e f r o m 7 0 k h z t o 8 0 0 k h z 1 4 - l e a d s o i c p a c k a g e lead free and green devices available (rohs compliant) f e a t u r e s a p p l i c a t i o n s g r a p h i c c a r d s d d r m e m o r y p o w e r s u p p l y d d r m e m o r y t e r m i n a t i o n v o l t a g e l o w - v o l t a g e d i s t r i b u t e d p o w e r s u p p l i e s g e n e r a l d e s c r i p t i o n p i n c o n f i g u r a t i o n t h e a p w 7 0 6 2 b i s a v o l t a g e m o d e a n d s y n c h r o n o u s p w m c o n t r o l l e r w h i c h d r i v e s d u a l n - c h a n n e l m o s f e t s . i t i n t e - g r a t e s t h e c o n t r o l , m o n i t o r i n g , a n d p r o t e c t i o n f u n c t i o n s i n t o a s i n g l e p a c k a g e , p r o v i d e s o n e c o n t r o l l e d p o w e r o u t p u t s w i t h u n d e r - v o l t a g e a n d o v e r - c u r r e n t p r o t e c t i o n . a p w 7 0 6 2 b p r o v i d e s e x c e l l e n t r e g u l a t i o n f o r o u t p u t l o a d v a r i a t i o n . a n i n t e r n a l 0 . 8 v t e m p e r a t u r e - c o m p e n s a t e d r e f e r e n c e v o l t a g e i s d e s i g n e d t o m e e t t h e r e q u i r e m e n t o f l o w o u t p u t v o l t a g e a p p l i c a t i o n s . i t i n c l u d e s a 2 0 0 k h z f r e e - r u n n i n g t r i a n g l e - w a v e o s c i l l a t o r t h a t i s a d j u s t a b l e f r o m 7 0 k h z t o 8 0 0 k h z . t h e p o w e r - o n - r e s e t ( p o r ) c i r c u i t m o n i t o r s t h e v c c , e n , a n d o c s e t i n p u t v o l t a g e t o s t a r t - u p o r s h u t d o w n t h e i c . t h e o v e r - c u r r e n t p r o t e c t i o n ( o c p ) m o n i t o r s t h e o u t p u t c u r r e n t b y u s i n g t h e v o l t a g e d r o p a c r o s s t h e u p p e r m o s f e t ? s r d s ( o n ) , e l i m i n a t i n g t h e n e e d f o r a c u r r e n t s e n s - i n g r e s i s t o r . t h e u n d e r - v o l t a g e p r o t e c t i o n ( u v p ) m o n i - t o r s t h e v o l t a g e o f t h e f b p i n f o r s h o r t - c i r c u i t p r o t e c t i o n . t h e o v e r - c u r r e n t p r o t e c t i o n t r i p c y c l e t h e s o f t - s t a r t f u n c - t i o n u n t i l t h e f a u l t e v e n t s b e r e m o v e d . u n d e r - v o l t a g e p r o - t e c t i o n w i l l s h u t d o w n t h e i c d i r e c t l y . 1 2 3 4 5 6 7 10 9 8 11 12 13 14 rt ocset ss comp fb en gnd vcc pvcc lgate pgnd boot ugate phase
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 2 o r d e r i n g a n d m a r k i n g i n f o r m a t i o n n o t e : a n p e c l e a d - f r e e p r o d u c t s c o n t a i n m o l d i n g c o m p o u n d s / d i e a t t a c h m a t e r i a l s a n d 1 0 0 % m a t t e t i n p l a t e t e r m i n a t i o n f i n i s h ; w h i c h a r e f u l l y c o m p l i a n t w i t h r o h s . a n p e c l e a d - f r e e p r o d u c t s m e e t o r e x c e e d t h e l e a d - f r e e r e q u i r e m e n t s o f i p c / j e d e c j - s t d - 0 2 0 c f o r m s l c l a s s i f i c a t i o n a t l e a d - f r e e p e a k r e f l o w t e m p e r a t u r e . a n p e c d e f i n e s ? g r e e n ? t o m e a n l e a d - f r e e ( r o h s c o m p l i a n t ) a n d h a l o g e n f r e e ( b r o r c l d o e s n o t e x c e e d 9 0 0 p p m b y w e i g h t i n h o m o g e n e o u s m a t e r i a l a n d t o t a l o f b r a n d c l d o e s n o t e x c e e d 1 5 0 0 p p m b y w e i g h t ) . package code k : sop-14 operating ambient temperature range c : 0 to 70 o c handling code tr : tape & reel assembly material l : lead free device g : halogen and lead free device apw7062b k : apw7062b xxxxx xxxxx - date code apw7062b handling code temperature range package code assembly material a b s o l u t e m a x i m u m r a t i n g s ( n o t e 1 ) symbol parameter rating unit v cc vcc to gnd 30 v v boot boot to gnd 30 v v phase phase to gnd 30 v operating junction temperature 0~150 o c t stg storage temperature - 65 ~ 150 o c t sdr maximum lead soldering temperature , 10 seconds 260 o c note 1 : stres ses above those listed in bsolute maximum ratings may cause permanent damage to the device. apw7062b symbol parameter test conditions min . typ . max . unit v cc supply current i cc nominal supply en=v cc ; ugate and lgate open - 2 - ma shutdown supply en=0v - 250 350 m a power - on - reset rising v cc threshold v ocset =4.5v dc - - 10.4 v fallin g v cc threshold v ocset =4.5v dc 8.8 - - v enable - input threshold voltage v ocset =4.5v dc 0.8 - 2.0 v rising v ocset threshold - 1.2 7 - v oscillator free running frequency r t =open, v cc =12 170 200 230 khz total variation 6k w < rt to gnd < 200k w - 15 - +1 5 % d v osc ramp amplitude r t =open - 1 .9 - vp - p reference voltage accuracy d v ref reference voltage tolerance - 1 - +1 % v ref pwm error amplifier - 0.80 - v e l e c t r i c a l c h a r a c t e r i s t i c s
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 3 apw7062b symbol parameter test conditions min . typ . max . unit gate drivers i ugate upper gate source v boot =12v, v ugate =6v 650 800 - ma r ugate upper gate sink i lgate = 0.3a - 4 7 w i lgate lower gate source p vcc =12v, v lgate =6v 550 700 - m a r lgate low er gate sink i lgate =0.3a - 4 7 w t d dead time v out =2.5v, i out =1a, r t =open - 50 - n s protection fb under voltage - 50 - % i ocset ocset current source v ocset =4.5v dc 170 200 230 m a i ss soft - start current 8 10 12 m a e l e c t r i c a l c h a r a c t e r i s t i c s ( c o n t . )
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 4 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s t i m e ( 1 0 m s / d i v ) v c c = 1 2 v , v i n = 1 2 v v o u t = 2 . 5 v , l = 2 . 2 u h v c c ( 5 v / d i v ) s s ( 2 v / d i v ) v o u t ( 1 v / d i v ) t i m e ( 1 0 m s / d i v ) v c c = 1 2 v , v i n = 1 2 v v o u t = 2 . 5 v , l = 2 . 2 u h v c c ( 5 v / d i v ) s s ( 2 v / d i v ) v o u t ( 1 v / d i v ) p o w e r u p p o w e r d o w n v c c = 1 2 v , v i n = 1 2 v v o u t = 2 . 5 v , l = 2 . 2 u h e n ( 1 0 v / d i v ) s s ( 2 v / d i v ) v o u t ( 1 v / d i v ) t i m e ( 1 0 m s / d i v ) v c c = 1 2 v , v i n = 1 2 v v o u t = 2 . 5 v , l = 2 . 2 u h e n ( 1 0 v / d i v ) s s ( 2 v / d i v ) t i m e ( 2 m s / d i v ) e n a b l e ( e n = v c c ) s h u t d o w n ( e n = g n d ) v o u t ( 1 v / d i v )
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 5 v c c = 1 2 v , v i n = 1 2 v v o u t = 2 . 5 v , l = 2 . 2 u h v o u t ( 1 0 0 m v / d i v ) i o u t ( 2 a / d i v ) t i m e ( 2 0 m s / d i v ) l o a d t r a n s i e n t r e s p o n s e t i m e ( 5 0 m s / d i v ) v c c = 1 2 v , v i n = 1 2 v v o u t = 2 . 5 v , r t = o p e n u g a t e ( 1 0 v / d i v ) l g a t e ( 1 0 v / d i v ) p h a s e ( 1 0 v / d i v ) u g a t e f a l l i n g u g a t e r i s i n g t i m e ( 5 0 m s / d i v ) v c c = 1 2 v , v i n = 1 2 v v o u t = 2 . 5 v , r t = o p e n u g a t e ( 1 0 v / d i v ) l g a t e ( 1 0 v / d i v ) p h a s e ( 1 0 v / d i v ) v c c = 1 2 v , v i n = 1 2 v v o u t = 2 . 5 v , r t = o p e n l = 2 . 2 u h i l ( 1 0 a / d i v ) s s ( 5 v / d i v ) v o u t ( 2 v / d i v ) u g a t e ( 2 0 v / d i v ) t i m e ( 2 0 m s / d i v ) u n d e r v o l t a g e p r o t e c t i o n t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . )
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 6 0 0.2 0.4 0.6 0.8 1 1.2 1.4 0 2 4 6 8 10 12 v b o o t = 1 2 v 0 0.2 0.4 0.6 0.8 1 1.2 0 2 4 6 8 10 12 p v c c = 1 2 v 0 0.2 0.4 0.6 0.8 1 1.2 1.4 0 2 4 6 8 10 12 p v c c = 1 2 v 0 0.2 0.4 0.6 0.8 1 1.2 0 2 4 6 8 10 12 u g a t e s o u r c e c u r r e n t v s . u g a t e v o l t a g e u g a t e v o l t a g e ( v ) ugate source current (a) u g a t e v o l t a g e ( v ) ugate sink current (a) u g a t e s i n k c u r r e n t v s . u g a t e v o l t a g e l g a t e v o l t a g e ( v ) lgate source current (a) l g a t e s o u r c e c u r r e n t v s . l g a t e v o l t a g e l g a t e v o l t a g e ( v ) lgate sink current (a) l g a t e s i n k c u r r e n t v s . l g a t e v o l t a g e t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) v b o o t = 1 2 v
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 7 1 10 100 1000 10000 10 100 1000 0.79 0.792 0.794 0.796 0.798 0.8 -40 -20 0 20 40 60 80 100 120 160 170 180 190 200 210 220 -40 -20 0 20 40 60 80 100 120 r t p u l l u p t o 1 2 v r t p u l l d o w n t o g n d s w i t c h i n g f r e q u e n c y ( k h z ) rt resistance (k w ) r t r e s i s t a n c e v s . s w i t c h i n g f r e q u e n c y j u n c t i o n t e m p e r a t u r e ( c ) j u n c t i o n t e m p e r a t u r e ( c ) reference voltage (v) switching frequency v c c = 1 2 v r t = o p e n r e f e r e n c e v o l t a g e v s . j u n c t i o n t e m p e r a t u r e s w i t c h i n g f r e q u e n c y v s . j u n c t i o n t e m p e r a t u r e v c c = 1 2 v , v i n = 1 2 v , v o u t = 2 . 5 v , r o c e s t = 1 k w, r t = o p e n , r d s ( o n ) = 1 4 m w, i o u t = 1 6 . 3 a , l = 2 . 2 u h , l o u t = 1 6 . 3 a v o u t ( 1 v / d i v ) t i m e ( 2 0 m s / d i v ) o v e r c u r r e n t p r o t e c t i o n s s ( 5 v / d i v ) i l ( 1 0 a / d i v ) u g a t e ( 2 0 v / d i v ) t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . )
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 8 t y p i c a l a p p l i c a t i o n c i r c u i t ? ? ? ? + = r9 r8 1 v v ref out + c9 1000uf r8 1kf c1 1uf c11 4.7uf r1 10r r7 nc l2 2.2uh + c10 1000uf r9 2kf d2 sr24 r5 2r2 c12 nc r3 1k d1 1n4148 + c4 100uf r6 0r c2 1nf r2 10k 7 4 2 8 5 6 1 3 q1 apm4220 rt 1 ocset 2 ss 3 comp 4 fb 5 en 6 gnd 7 phase 8 ugate 9 boot 10 pgnd 11 lgate 12 pvcc 13 vcc 14 u1 apw7062b r4 nc c8 0.1uf + c3 470uf c7 0.1uf 7 4 2 8 5 6 1 3 q2 apm4220 c5 4.7uf l1 1uh shdn 12v 12v 1.2v 16v 1% 30mr 16v 6.3v 30mr 2a/40v 1% 6.3v 30mr r10 15k c12 8200pf c13 47pf + c6 470uf 16v 30mr b l o c k d i a g r a m gate control oscillator soft start power-on reset v cc phase lgate rt fb ss gnd en vcc ocset boot ugate pgnd pvcc v ref i ocset 200 m a i ss 10 m a 5.8v 50%v ref o.c.p comparator error amp pwm comparator u.v.p comparator triangle wave : 2 comp
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 9 f u n c t i o n p i n d e s c r i p t i o n ( ) ds(on) ocset ocset peak r r 200ua i i = 400khz) to 200khz f gnd, to (rt rt 10 4.15 200khz f s s 6 = + = 75khz) to 200khz f , v to (rt rt 10 3.51 - 200khz f s cc s 7 = = ) ( 1 t v c t osc(min) ss ss 2 i + = osc in out ss ss 2 3 softstart v v v i c t t t state steady d = - = f i g u r e 1 . s o f t - s t a r t i n t e r v a l r t ( p i n 1 ) t h i s p i n c a n a d j u s t t h e s w i t c h i n g f r e q u e n c y . c o n n e c t a r e s i s t o r f r o m t h e r t t o t h e g n d f o r i n c r e a s i n g t h e s w i t c h - i n g f r e q u e n c y : c o n v e r s e l y , c o n n e c t a r e s i s t o r f r o m t h e r t t o t h e v c c f o r d e c r e a s i n g t h e s w i t c h i n g f r e q u e n c y : o c s e t ( p i n 2 ) t h i s p i n s e r v e s t w o f u n c t i o n s : a s h u t d o w n c o n t r o l a n d t h e s e t t i n g o f o v e r c u r r e n t - l i m i t t h r e s h o l d . p u l l i n g t h i s p i n b e l o w 1 . 2 7 v w i l l s h u t d o w n t h e c o n t r o l l e r , f o r c i n g t h e u g a t e a n d l g a t e s i g n a l s t o b e a t 0 v . a r e s i s t o r ( r o c s e t ) c o n n e c t e d b e t w e e n t h i s p i n a n d t h e d r a i n o f t h e h i g h s i d e m o s f e t w i l l d e t e r m i n e t h e o v e r c u r r e n t l i m i t . a n i n t e r n a l 2 0 0 m a c u r r e n t s o u r c e w i l l f l o w t h r o u g h t h i s r e s i s t o r , c r e a t i n g a v o l t a g e d r o p , w h i c h w i l l b e c o m - p a r e d w i t h t h e v o l t a g e a c r o s s t h e h i g h s i d e m o s f e t . t h e t h r e s h o l d o f t h e o v e r c u r r e n t l i m i t i s t h e r e f o r e g i v e n b y : t o a v o i d t h e n o i s e i n t e r f e r e n c e f r o m s w i t c h i n g t r a n s i e n t , a d e l a y t i m e i s d e s i g n e d i n t h e o c p c o m p a r a t o r . t h e o v e r - c u r r e n t p r o t e c t i o n i s a c t i v e o n l y w h e n t h e h i g h s i d e m o s f e t i s t u r n e d o n l o n g e r t h a n 3 0 0 n s . s s ( p i n 3 ) c o n n e c t a c a p a c i t o r f r o m t h e p i n t o t h e g n d t o s e t t h e s o f t - s t a r t i n t e r v a l o f t h e c o n v e r t e r . a n i n t e r n a l 1 0 m a c u r r e n t s o u r c e c h a r g e s t h i s c a p a c i t o r t o 5 . 8 v . t h e s s v o l t a g e c l a m p s t h e e r r o r a m p l i f i e r o u t p u t , a n d f i g u r e 1 s h o w s t h e s o f t - s t a r t i n t e r v a l . a t t 1 , t h e s s v o l t a g e r e a c h e s t h e v a l l e y o f t h e o s c i l l a t o r ? s t r i a n g l e w a v e . t h e p w m c o m p a r a t o r s t a r t s t o g e n e r a t e a p w m s i g n a l t o c o n t r o l l o g i c , a n d t h e o u t p u t i s r i s i n g r a p i d l y . u n t i l t h e o u t p u t i s i n r e g u l a t i o n a t t 2 , t h e c l a m p o n t h e c o m p i s r e l e a s e d . t h i s m e t h o d p r o - v i d e s a r a p i d a n d c o n t r o l l e d o u t p u t v o l t a g e r i s e . w h e n o v e r - c u r r e n t p r o t e c t i o n o c c u r s , t h e v o u t i s s h u t d o w n , a n d r e - s o f t - s t a r t a g a i n , i f t h e o v e r c u r r e n t c o n - d i t i o n s t i l l e x i s t s i n s o f t - s t a r t , t h e v o u t i s s h u t d o w n e d a g a i n . a f t e r t h e s s r e a c h e s 4 . 5 v , t h e s s i s d i s c h a r g e d t o z e r o . t h e s o f t - s t a r t i s r e c u r r i n g u n t i l t h e o v e r c u r r e n t c o n - d i t i o n i s e l i m i n a t e d . time voltage t 2 v osc(min) t 3 t 0 v soft-start v out error amp output t 1 v ss = 1.2v t 1 = 1 . 2 v c s s = s o f t - s t a r t c a p a c i t o r i s s = s o f t - s t a r t c u r r e n t = 1 0 m a v o s c ( m i n ) = b o t t o m o f o s c i l l a t o r = 1 . 3 5 v v i n = i n p u t v o l t a g e d v o s c = p e a k t o p e a k o s c i l l a t o r v o l t a g e = 1 . 9 v d v o u t s t e a d y s t a t e = s t e a d y s t a t e o u t p u t v o l t a g e w h e r e :
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 1 0 i f t h e f b v o l t a g e i s u n d e r 5 0 % v r e f b e c a u s e o f t h e s h o r t c i r c u i t o r o t h e r i n f l u e n c e , i t w i l l c a u s e t h e u n d e r - v o l t a g e p r o t e c t i o n , a n d t h e d e v i c e i s s h u t d o w n e d . r e m o v e t h e e r r o r c o n d i t i o n a n d r e s t a r t t h e v c c v o l t a g e o r p u l l t h e e n f r o m l o w t o h i g h o n c e , t h e d e v i c e c a n b e e n a b l e d a g a i n . c o m p ( p i n 4 ) t h i s p i n i s t h e o u t p u t o f t h e e r r o r a m p l i f i e r . a d d a n e x t e r - n a l r e s i s t o r a n d c a p a c i t o r n e t w o r k t o p r o v i d e t h e l o o p c o m - p e n s a t i o n f o r t h e p w m c o n v e r t e r ( s e e a p p l i c a t i o n i n f o r m a t i o n ) . ? ? ? ? + = gnd out out r r 1 0.8v v w h e r e r o u t i s t h e r e s i s t o r c o n n e c t e d f r o m t h e v o u t t o t h e f b a n d r g n d i s t h e r e s i s t o r c o n n e c t e d f r o m t h e f b t o t h e g n d . f u n c t i o n p i n d e s c r i p t i o n ( c o n t . ) f b ( p i n 5 ) fb pin is the inverter input of the error amplifier and it receives the feedback voltage from an external resis-tive divider across the output (v out ). the output voltage is determined by: e n ( p i n 6 ) p u l l t h e p i n h i g h e r t h a n 2 v t o e n a b l e t h e d e v i c e , a n d p u l l t h e p i n l o w e r t h a n 0 . 8 v t o s h u t d o w n t h e d e v i c e . i n s h u t d o w n , t h e s s i s d i s c h a r g e d a n d t h e u g a t e a n d l g a t e p i n s a r e h e l d l o w . t h e e n p i n i s t h e o p e n - c o l l e c t o r , a n d i t w i l l n o t b e f l o a t i n g . g n d ( p i n 7 ) s i g n a l g r o u n d f o r t h e i c . p h a s e ( p i n 8 ) t h i s p i n i s c o n n e c t e d t o t h e s o u r c e o f t h e h i g h - s i d e m o s f e t a n d i s u s e d t o m o n i t o r t h e v o l t a g e d r o p a c r o s s t h e h i g h - s i d e m o s f e t f o r o v e r - c u r r e n t p r o t e c t i o n . u g a t e ( p i n 9 ) c o n n e c t t h e p i n t o e x t e r n a l m o s f e t , a n d p r o v i d e s t h e g a t e d r i v e f o r t h e u p p e r m o s f e t . b o o t ( p i n 1 0 ) t h i s p i n p r o v i d e s t h e s u p p l y v o l t a g e t o t h e h i g h s i d e m o s f e t d r i v e r . f o r d r i v i n g l o g i c l e v e l n - c h a n n e l m o s e f t , a b o o t s t r a p c i r c u i t c a n b e u s e d t o c r e a t e a s u i t a b l e d r i v e r ? s s u p p l y . p g n d ( p i n 1 1 ) p o w e r g r o u n d f o r t h e g a t e d i v e r . c o n n e c t t h e l o w e r m o s f e t s o u r c e t o t h i s p i n . l g a t e ( p i n 1 2 ) c o n n e c t t h e p i n t o t h e e x t e r n a l m o s f e t , a n d p r o v i d e s t h e g a t e d r i v e s i g n a l f o r t h e l o w e r m o s f e t . p v c c ( p i n 1 3 ) t h i s p i n p r o v i d e s a s u p p l y v o l t a g e f o r t h e l o w e r g a t e d r i v e , c o n n e c t i t t o t h e v c c p i n i n c o m m o n u s e . v c c ( p i n 1 4 ) t h i s p i n p r o v i d e s a s u p p l y v o l t a g e f o r t h e d e v i c e . w h e n t h e v c c i s a b o v e t h e r i s i n g t h r e s h o l d 1 0 . 4 v , t h e d e v i c e i s t u r n e d o n ; c o n v e r s e l y , w h e n t h e v c c i s b e l o w t h e f a l l i n g t h r e s h o l d , t h e d e v i c e i s t u r n e d o f f .
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 1 1 a p p l i c a t i o n i n f o r m a t i o n c o m p o n e n t s e l e c t i o n g u i d e l i n e s o u t p u t c a p a c i t o r s e l e c t i o n t h e s e l e c t i o n o f c o u t i s d e t e r m i n e d b y t h e r e q u i r e d e f f e c - t i v e s e r i e s r e s i s t a n c e ( e s r ) a n d v o l t a g e r a t i n g r a t h e r t h a n t h e a c t u a l c a p a c i t a n c e r e q u i r e m e n t . t h e r e f o r e , s e l e c t h i g h p e r f o r m a n c e l o w e s r c a p a c i t o r s t h a t a r e i n t e n d e d f o r s w i t c h i n g r e g u l a t o r a p p l i c a t i o n s . i n s o m e a p p l i c a t i o n s , m u l t i p l e c a p a c i t o r s h a v e t o b e p a r a l l e d t o a c h i e v e t h e d e s i r e d e s r v a l u e . i f t a n t a l u m c a p a c i t o r s a r e u s e d , m a k e s u r e t h e y a r e s u r g e t e s t e d b y t h e m a n u f a c t u r e s . i f i n d o u b t , c o n s u l t t h e c a p a c i t o r s m a n u f a c t u r e r . i n p u t c a p a c i t o r s e l e c t i o n t h e i n p u t c a p a c i t o r i s c h o s e n b a s e d o n t h e v o l t a g e r a t i n g a n d t h e r m s c u r r e n t r a t i n g . f o r r e l i a b l e o p e r a t i o n , s e l e c t t h e c a p a c i t o r v o l t a g e r a t i n g t o b e a t l e a s t 1 . 3 t i m e s h i g h e r t h a n t h e m a x i m u m i n p u t v o l t a g e . t h e m a x i m u m r m s c u r r e n t r a t i n g r e q u i r e m e n t i s a p p r o x i m a t e l y i o u t / 2 , w h e r e i o u t i s t h e l o a d c u r r e n t . d u r i n g p o w e r u p , t h e i n p u t c a p a c i - t o r s h a v e t o h a n d l e l a r g e a m o u n t o f s u r g e c u r r e n t . i f t a n t a - l u m c a p a c i t o r s a r e u s e d , m a k e s u r e t h e y a r e s u r g e t e s t e d b y t h e m a n u f a c t u r e s . i f i n d o u b t , c o n s u l t t h e c a p a c i t o r s m a n u f a c t u r e r . f o r h i g h f r e q u e n c y d e c o u p l i n g , a c e r a m i c c a p a c i t o r b e - t w e e n 0 . 1 m f t o 1 m f c a n b e c o n n e c t e d b e t w e e n t h e v c c a n d t h e g r o u n d p i n . i n d u c t o r s e l e c t i o n t h e i n d u c t a n c e o f t h e i n d u c t o r i s d e t e r m i n e d b y t h e o u t - p u t v o l t a g e r e q u i r e m e n t . t h e l a r g e r t h e i n d u c t a n c e , t h e l o w e r t h e i n d u c t o r ? s c u r r e n t r i p p l e . t h i s w i l l t r a n s l a t e i n t o l o w e r o u t p u t r i p p l e v o l t a g e . t h e r i p p l e c u r r e n t a n d r i p p l e v o l t a g e c a n b e a p p r o x i m a t e d b y : v i n - v o u t f s x l v o u t v i n x i r i p p l e = d v o u t = i r i p p l e x e s r w h e r e f s i s t h e s w i t c h i n g f r e q u e n c y o f t h e r e g u l a t o r . t h e r e i s a t r a d e o f f e x i s t s b e t w e e n t h e i n d u c t o r ? s r i p p l e c u r r e n t a n d t h e r e g u l a t o r l o a d t r a n s i e n t r e s p o n s e t i m e . a s m a l l e r i n d u c t o r w i l l g i v e t h e r e g u l a t o r a f a s t e r l o a d t r a n - s i e n t r e s p o n s e a t t h e e x p e n s e o f h i g h e r r i p p l e c u r r e n t a n d v i c e v e r s a . t h e m a x i m u m r i p p l e c u r r e n t o c c u r s a t t h e m a x i m u m i n p u t v o l t a g e . a g o o d s t a r t i n g p o i n t i s t o c h o o s e t h e r i p p l e c u r r e n t t o b e a p p r o x i m a t e l y 3 0 % o f t h e m a x i - m u m o u t p u t c u r r e n t . o n c e t h e i n d u c t a n c e v a l u e h a s b e e n c h o s e n , s e l e c t a n i n d u c t o r t h a t i s c a p a b l e o f c a r r y i n g t h e r e q u i r e d p e a k c u r - r e n t w i t h o u t g o i n g i n t o s a t u r a t i o n . i n s o m e t y p e s o f i n d u c t o r s , e s p e c i a l l y c o r e t h a t i s m a k e o f f e r r i t e , t h e r i p p l e c u r r e n t w i l l i n c r e a s e a b r u p t l y w h e n i t s a t u r a t e s . t h i s w i l l r e s u l t i n a l a r g e r o u t p u t r i p p l e v o l t a g e . c o m p e n s a t i o n t h e o u t p u t l c f i l t e r i n t r o d u c e s a d o u b l e p o l e , w h i c h c o n - t r i b u t e s w i t h ? 4 0 d b / d e c a d e g a i n s l o p e a n d 1 8 0 d e g r e e s p h a s e s h i f t i n t h e c o n t r o l l o o p . a c o m p e n s a t i o n n e t w o r k b e t w e e n t h e c o m p p i n a n d t h e g r o u n d s h o u l d b e a d d e d . t h e s i m p l e s t l o o p c o m p e n s a t i o n n e t w o r k i s s h o w n i n f i g u r e 5 . t h e o u t p u t l c f i l t e r c o n s i s t s o f t h e o u t p u t i n d u c t o r a n d o u t p u t c a p a c i t o r s . t h e t r a n s f e r f u n c t i o n o f t h e l c f i l t e r i s g i v e n b y : g a i n l c = 1 esr s c l s c esr s 1 out 2 out + + + t h e p o l e s a n d z e r o o f t h i s t r a n s f e r f u n c t i o n a r e : out c l p 2 1 f l c = f e s r = out c esr p 2 1 t h e f l c i s t h e d o u b l e p o l e s o f t h e l c f i l t e r , a n d f e s r i s t h e z e r o i n t r o d u c e d b y t h e e s r o f t h e o u t p u t c a p a c i t o r . f i g u r e 2 . t h e o u t p u t l c f i l t e r l c out esr output phase
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 1 2 f i g u r e 3 . t h e o u t p u t l c f i l t e r g a i n & f r e q u e n c y t h e p w m m o d u l a t o r i s s h o w n i n f i g u r e 4 . t h e i n p u t i s t h e o u t p u t o f t h e e r r o r a m p l i f i e r a n d t h e o u t p u t i s t h e p h a s e n o d e . t h e t r a n s f e r f u n c t i o n o f t h e p w m m o d u l a t o r i s g i v e n b y : f i g u r e 4 . t h e p w m m o d u l a t o r g a i n a m p = = = t h e p o l e s a n d z e r o o f t h e c o m p e n s a t i o n n e t w o r k a r e : f p = f z = c o m p e n s a t i o n ( c o n t . ) a p p l i c a t i o n i n f o r m a t i o n ( c o n t . ) f esr f lc frequency -40db/dec -20db/dec gain g a i n p w m = osc v d in v t h e c o m p e n s a t i o n c i r c u i t i s s h o w n i n f i g u r e 5 . r 3 a n d c 1 i n t r o d u c e a z e r o a n d c 2 i n t r o d u c e s a p o l e t o r e d u c e t h e s w i t c h i n g n o i s e . t h e t r a n s f e r f u n c t i o n o f e r r o r a m p l i - f i e r i s g i v e n b y : zo gm 2 1 2 1 3 c c c c r 2 1 + p 1 3 c r 2 1 p f i g u r e 5 . c o m p e n s a t i o n n e t w o r k ? ? ? ? ? ? ? + 2 1 3 sc 1 // sc 1 r gm ( ) ? ? ? ? ? + + + 2 1 3 2 1 1 3 c c r c c s s 1 sc r gm v osc pwm comparator driver driver output of error amplifier v in phase c2 v out r2 r1 r3 error amplifier v ref c1 comp fb - +
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 1 3 t h e c l o s e d l o o p g a i n o f t h e c o n v e r t e r c a n b e w r i t t e n a s : w h e r e : g m = 9 0 0 m a / v f i g u r e 6 . c o n v e r t e r g a i n & f r e q u e n c y a p p l i c a t i o n i n f o r m a t i o n ( c o n t . ) c o m p e n s a t i o n ( c o n t . ) f i g u r e 6 s h o w s t h e c o n v e r t e r g a i n a n d t h e f o l l o w i n g g u i d e - l i n e s w i l l h e l p t o d e s i g n t h e c o m p e n s a t i o n n e t w o r k . 1 . s e l e c t t h e d e s i r e d z e r o c r o s s o v e r f r e q u e n c y f o : ( 1 / 5 ~ 1 / 1 0 ) x f s > f o > f z u s e t h e f o l l o w i n g e q u a t i o n t o c a l c u l a t e r 3 : g a i n l c x g a i n p w m x x g a i n a m p r2 r1 r2 + gm f r r r f f v v r o lc esr in osc 2 2 1 3 + d = 2 2 . p l a c e t h e z e r o f z b e f o r e t h e l c f i l t e r d o u b l e p o l e s f l c : f z = 0 . 7 5 x f l c c a l c u l a t e t h e c 1 b y t h e e q u a t i o n : 0.75 f r 2 1 c lc 1 1 p = 3 . s e t t h e p o l e a t t h e h a l f t h e s w i t c h i n g f r e q u e n c y : f p = 0 . 5 x f s c a l c u l a t e t h e c 2 b y t h e e q u a t i o n : 1 f c r c c s 1 3 1 2 - p = f lc f esr f p =0.5f s f z =0.75f lc f o frequency pwm & filter gain compensation gain converter gain osc in ?v v log 20 r3) log(gm 20 m o s f e t s e l e c t i o n t h e s e l e c t i o n o f t h e n - c h a n n e l p o w e r m o s f e t s a r e d e - t e r m i n e d b y t h e r d s ( o n ) , r e v e r s e t r a n s f e r c a p a c i t a n c e ( c r s s ) a n d m a x i m u m o u t p u t c u r r e n t r e q u i r e m e n t . t h e l o s s e s i n t h e m o s f e t s h a v e t w o c o m p o n e n t s : c o n d u c t i o n l o s s a n d t r a n s i t i o n l o s s . f o r t h e u p p e r a n d l o w e r m o s f e t , t h e l o s s e s a r e a p p r o x i m a t e l y g i v e n b y t h e f o l l o w i n g : p u p p e r = i o u t 2 ( 1 + t c ) ( r d s ( o n ) ) d + ( 0 . 5 ) ( i o u t ) ( v i n ) ( t s w ) f s p l o w e r = i o u t 2 ( 1 + t c ) ( r d s ( o n ) ) ( 1 - d ) w h e r e i o u t i s t h e l o a d c u r r e n t t c i s t h e t e m p e r a t u r e d e p e n d e n c y o f r d s ( o n ) f s i s t h e s w i t c h i n g f r e q u e n c y t s w i s t h e s w i t c h i n g i n t e r v a l d i s t h e d u t y c y c l e t h e ( 1 + t c ) t e r m i s t o f a c t o r i n t h e t e m p e r a t u r e d e p e n - d e n c y o f t h e r d s ( o n ) a n d c a n b e e x t r a c t e d f r o m t h e ? r d s ( o n ) v s t e m p e r a t u r e ? c u r v e o f t h e p o w e r m o s f e t . n o t e t h a t b o t h m o s f e t s h a v e c o n d u c t i o n l o s s e s w h i l e t h e u p p e r m o s f e t i n c l u d e a n a d d i t i o n a l t r a n s i t i o n l o s s . t h e s w i t c h i n g i n t e r n a l , t s w , i s t h e f u n c t i o n o f t h e r e v e r s e t r a n s f e r c a p a c i t a n c e c r s s . f i g u r e 7 i l l u s t r a t e s t h e s w i t c h - i n g w a v e f o r m i n t e r n a l o f t h e m o s f e t . l a y o u t c o n s i d e r a t i o n i n h i g h p o w e r s w i t c h i n g r e g u l a t o r , a c o r r e c t l a y o u t i s i m - p o r t a n t t o e n s u r e p r o p e r o p e r a t i o n o f t h e r e g u l a t o r . i n g e n e r a l , i n t e r c o n n e c t i n g i m p e d a n c e s s h o u l d b e m i n i - m i z e d b y u s i n g s h o r t a n d w i d e p r i n t e d c i r c u i t t r a c e s . s i g - n a l a n d p o w e r g r o u n d s a r e t o b e k e p t s e p a r a t e a n d f i n a l l y c o m b i n e d u s i n g g r o u n d p l a n e c o n s t r u c t i o n o r s i n g l e p o i n t g r o u n d i n g . f i g u r e 8 i l l u s t r a t e s t h e l a y o u t , w i t h b o l d l i n e s i n d i c a t i n g h i g h c u r r e n t p a t h s . c o m p o n e n t s a l o n g t h e b o l d l i n e s s h o u l d b e p l a c e d c l o s e t o g e t h e r . b e l o w i s a c h e c k - l i s t f o r y o u r l a y o u t : k e e p t h e s w i t c h i n g n o d e s ( u g a t e , l g a t e , a n d p h a s e ) a w a y f r o m s e n s i t i v e s m a l l s i g n a l n o d e s s i n c e t h e s e n o d e s a r e f a s t m o v i n g s i g n a l s . t h e r e f o r e k e e p t r a c e s t o t h e s e n o d e s a s s h o r t a s p o s s i b l e . t h e g r o u n d r e t u r n o f c i n m u s t r e t u r n t o t h e c o m b i n e c o u t ( - ) t e r m i n a l . c a p a c i t o r c b o o t s h o u l d b e c o n n e c t e d a s c l o s e t o t h e b o o t a n d p h a s e p i n s a s p o s s i b l e .
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 1 4 a p p l i c a t i o n i n f o r m a t i o n ( c o n t . ) l a y o u t c o n s i d e r a t i o n ( c o n t . ) v o l t a g e a c r o s s d r a i n a n d s o u r c e o f m o s f e t time v ds t sw figure 7 . switching waveform across mosfet v in v out q1 l1 12 8 9 u 1 c out c in + + apw7062b ugate lgate phase q2 pgnd 11 l o a d figure 8 . recommended layout diagram
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 1 5 p a c k a g e i n f o r m a t i o n s o p - 1 4 s y m b o l min. max. 1.75 0.10 0.17 0.25 0.25 a a1 c d e e1 e h l millimeters b 0.31 0.51 sop-14 0.25 0.50 0.40 1.27 min. max. inches 0.069 0.004 0.012 0.020 0.007 0.010 0.010 0.020 0.016 0.050 0 0.010 1.27 bsc 0.050 bsc a2 1.25 0.049 0 8 0 8 l view a 0 . 2 5 seating plane gauge plane note: 1. follow jedec ms-012 ab. 2. dimension ? d ? does not include mold flash, protrusions or gate burrs. mold flash, protrusion or gate burrs shall not exceed 6 mil per side. 3. dimension ? e ? does not include inter-lead flash or protrusions. inter-lead flash and protrusions shall not exceed 10 mil per side. 3.80 5.80 8.55 4.00 6.20 8.75 0.337 0.344 0.228 0.244 0.150 0.157 d e b e 1 e see view a c h x 4 5 a a 1 a 2
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 1 6 application a h t1 c d d w e1 f 330.0 ? 2.00 50 min. 16.4+2.00 - 0.00 13.0+0.50 - 0.20 1.5 min. 20.2 min. 16.0 ? 0.30 1.75 ? 0.10 7.50 ? 0.10 p 0 p1 p 2 d 0 d1 t a 0 b 0 k 0 sop - 14 4.0 ? 0.10 8.0 ? 0.10 2.0 ? 0.10 1.5+0.10 - 0.00 1.5 min. 0.6+0.00 - 0. 40 6.40 ? 0.20 9.00 ? 0.20 2.10 ? 0.20 (mm) c a r r i e r t a p e & r e e l d i m e n s i o n s d e v i c e s p e r u n i t package type unit quantity sop - 14 tape & reel 2500 h t1 a d a e 1 a b w f t p0 od0 b a0 p2 k0 b 0 section b-b section a-a od1 p1
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 1 7 test item method description solderability mil - std - 883d - 2003 245 c, 5 sec holt mil - std - 883d - 1005.7 1000 hrs bias @125 c pct jesd - 22 - b, a102 168 hrs, 100 % rh, 121 c tst mil - std - 883d - 1011.9 - 65 c~150 c, 200 cycles esd mil - std - 883d - 3015.7 vhbm > 2kv, vmm > 200v latch - up jesd 78 10ms, 1 tr > 100ma r e f l o w c o n d i t i o n ( i r / c o n v e c t i o n o r v p r r e f l o w ) t 25 c to peak tp ramp-up t l ramp-down ts preheat tsmax tsmin t l t p 25 t e m p e r a t u r e time critical zone t l to t p r e l i a b i l i t y t e s t p r o g r a m t a p i n g d i r e c t i o n i n f o r m a t i o n t s o p - 1 4 user direction of feed
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - o c t . , 2 0 0 8 a p w 7 0 6 2 b w w w . a n p e c . c o m . t w 1 8 profile feature sn - pb eutectic assembly pb - free assembly average ramp - up rate (t l to t p ) 3 c/second max. 3 c/second max. preheat - temperature min (tsmin) - temperature max (tsmax) - time (min to max) (ts) 100 c 150 c 60 - 120 seconds 150 c 200 c 60 - 180 seconds time maintained above: - temperature (t l ) - time (t l ) 183 c 60 - 150 seconds 217 c 60 - 150 seconds peak /classification temperature (tp) see table 1 see table 2 time within 5 c of actual peak temperature (tp) 10 - 30 seconds 20 - 40 seconds ramp - down rate 6 c/sec ond max. 6 c/second max. time 25 c to peak temperature 6 minutes max. 8 minutes max. notes: all temperatures refer to topside of the package. measured on the body surface. table 2. pb - free process ? package classification reflow temperatures package thickness volume mm 3 <350 volume mm 3 350 - 2000 volume mm 3 >2000 <1.6 mm 260 +0 c* 260 +0 c* 260 +0 c* 1.6 mm ? 2.5 mm 260 +0 c* 250 +0 c* 245 +0 c* 3 2.5 mm 250 +0 c* 245 +0 c* 245 +0 c* * tolerance: the device manufacturer/supplier shall assure process compatibility up to and including the stated classification temperature (this means peak reflow temperature +0 c. for example 260 c+0 c) at the rated msl level. c u s t o m e r s e r v i c e a n p e c e l e c t r o n i c s c o r p . head office : no.6, dusing 1st road, sbip, hsin-chu, taiwan, r.o.c. tel : 886-3-5642000 fax : 886-3-5642050 t a i p e i b r a n c h : 2 f , n o . 1 1 , l a n e 2 1 8 , s e c 2 j h o n g s i n g r d . , s i n d i a n c i t y , t a i p e i c o u n t y 2 3 1 4 6 , t a i w a n t e l : 8 8 6 - 2 - 2 9 1 0 - 3 8 3 8 f a x : 8 8 6 - 2 - 2 9 1 7 - 3 8 3 8 table 1. snpb eutectic process ? package peak reflow temperature s package thickness volume mm 3 <350 volume mm 3 3 350 <2.5 mm 240 +0/ - 5 c 225 +0/ - 5 c 3 2.5 mm 225 +0/ - 5 c 225 +0/ - 5 c c l a s s i f i c a t i o n r e f l o w p r o f i l e s

▲Up To Search▲

Price & Availability of APW7062BKC-TRG

	To Download APW7062BKC-TRG Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .