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  p r o g r a m m a b l e n e g a t i v e s u p p l y i c b d 6 1 1 2 f v m d e s c r i p t i o n d i m e n s i o n ( u n i t s : m m ) f e a t u r e s a p p l i c a t i o n s b d 6 1 1 2 f v m i s a c h a r g e - p u m p n e g a t i v e s u p p l y i c w i t h a b u i l t - i n r e g u l a t o r . t h e c h a r g e - p u m p b l o c k i n v e r t s t h e p o s i t i v e s u p p l y v o l t a g e i n t h e v b a t p i n i n t o a n e g a t i v e v o l t a g e , w h i c h g e n e r a t e s f r o m t h e n e g o u t p i n . t h e r e g u l a t o r b l o c k s t a b i l i z e s t h i s n e g a t i v e v o l t a g e w i t h l o w - n o i s e t h a t p r o d u c e s f r o m t h e o u t p i n . o u t p u t v o l t a g e v a l u e s o f t h i s r e g u l a t o r c a n b e c o n t r o l l e d b y v o l t a g e v a l u e i n p u t t e d t o t h e v i n p i n a n d d e t e r m i n e d b y o u t = 1 . 6 x v i n . 0 0 w 1 4 8 a 1 ) b u i l t - i n h i g h e f f i c i e n c y , i n v e r t i n g c h a r g e - p u m p 2 ) b u i l t - i n n e g a t i v e v o l t a g e r e g u l a t o r ( l o w n o i s e , o u t p u t v o l t a g e v a r i a b l e ) 3 ) b u i l t - i n s t a n d b y s w ( p u l l d o w n r e s i s t a n c e 1 m w ) 4 ) u l t r a s m a l l m s o p 8 p a c k a g e s m a l l t e r m i n a l d e v i c s s u c h a s c e l l u l a r p h o n e s , p h s , a n d p d a e t c . o t h e r e q u i p m e n t s d r i v e n b y b a t t e r y r e q u i r e d f o r n e g a t i v e v o l t a g e . f e b r u a r y , 2 0 0 1 a b s o l u t e m a x i m u m r a t i n g s ( t a = 2 5 ? c ) m a x i m u m a p p l i e d s u p p l y v o l t a g e m a x i m u m a p p l i e d i n p u t v o l t a g e p o w e r d i s s i p a t i o n o p e r a t i n g t e m p e r a t u r e r a n g e p a r a m e t e r s y m b o l l i m i t s u n i t * d e r a t i n g : 3 . 5 m w / ? c f o r o p e r a t i o n a b o v e t a = 2 5 ? c v b a t v i n p d t o p r ~ ~ + 8 5 3 0 3 5 0 ~ v m w ? c s t o r a g e t e m p e r a t u r e r a n g e t s t g + 1 2 5 5 5 ~ ? c v * 0 . 3 + 6 . 0 0 . 3 + 6 . 0 m s o p 8 4 1 2 3 5 8 7 6 2 . 9 0 . 1 0 . 4 7 5 0 . 2 2 0 . 6 5 4 . 0 0 . 2 0 . 6 0 . 2 0 . 2 9 0 . 1 5 2 . 8 0 . 1 0 . 7 5 0 . 0 5 0 . 0 8 0 . 0 5 0 . 9 m a x . 0 . 0 8 s + 0 . 0 5 - 0 . 0 4 0 . 1 4 5 + 0 . 0 5 - 0 . 0 3 0 . 0 8 m
p o w e r s u p p l y v o l t a g e r e c o m m e n d e d o p e r a t i n g c o n d i t i o n s ( t a = 2 5 ? c ) p a r a m e t e r m i n . m a x . u n i t t y p . s y m b o l c i r c u i t c u r r e n t < r e g u l a t o r b l o c k > o u t p u t v o l t a g e 1 o u t p u t v o l t a g e 2 o u t p u t r i p p l e v o l t a g e m a x i m u m o u t p u t c u r r e n t l o a d r e g u l a t i o n l i n e r e g u l a t i o n v i n p i n i n f l o w c u r r e n t < c h a r g e - p u m p b l o c k > o s c i l l a t i o n f r e q u e n c y v o l t a g e c o n v e r s i o n e f f i c i e n c y s t a n d - b y p i n p u l l d o w n r e s i s t a n c e s t a n d - b y p i n c o n t r o l v o l t a g e 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 ( u n l e s s o t h e r w i s e n o t e d ; t a = 2 5 ? c , v b a t = 3 . 6 v , s t b y = 3 . 6 v ) i q 1 2 . 1 v o x 0 . 9 5 1 0 0 . 5 2 . 0 v o 7 0 2 1 0 0 3 5 1 . 9 v o x 1 . 0 5 6 0 4 0 4 0 2 m a m a v v d b v m a m v m v m a i q 2 v o v o 2 v r r i o m a x d v o l d v o i i i n n o l o a d , v i n = 1 . 2 5 v n o l o a d , v i n = 0 v , s t b y = 0 v v i n = 1 . 2 5 v , i o u t = 5 m a v i n = 0 . 5 ~ 1 . 8 v , v o = 1 . 6 x v i n , i o u t = 5 m a v i n = 1 . 2 5 v , i o u t = 5 m a v i n = 1 . 2 5 v , v o u t v o + 0 . 1 v v i n = 1 . 2 5 v , i o = 0 ~ 5 m a v b a t = 3 . 0 ~ 6 . 0 v , i o = 5 m a v i n = 1 . 2 5 v 0 . 6 2 . 0 0 . 3 1 2 0 9 7 1 . 0 1 . 6 0 . 3 k h z % m w v v f o s c v c e r s t b y v i h v i l n o l o a d , n e g o u t m o n i t o r s y m b o l m i n . m a x . u n i t c o n d i t i o n s t y p . p a r a m e t e r o p e r a t i n g s t a n d - b y c u r r e n t v b a t v 5 . 5 3 . 6 2 . 5 a p p l i c a t i o n c i r c u i t 8 6 5 1 2 3 4 c h a r g e p u m p 7 s t b y + + + v b a t c 4 1 m + o u t c 3 1 m v i n 1 m 1 m 1 . 6 m + + - g n d c - c + c 1 1 m c 2 1 m n e g o u t b d 6 1 1 2 f v m n o n - o p e r a t i n g


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