d c d c s p e c i f i c a t i o n 7 5 3 5 0 w a t t s ? w i d e i n p u t r a n g e ? i n d u s t r y s t a n d a r d p a c k a g e s ? 4 0 c t o + 1 0 0 c o p e r a t i n g t e m p e r a t u r e ? h i g h p o w e r d e n s i t y ? b a s e p l a t e c o o l e d ? r e m o t e o n / o f f & r e m o t e s e n s e ? 3 y e a r w a r r a n t y q s b s e r i e s i n p u t i n p u t v o l t a g e r a n g e ? s e e t a b l e s i n p u t c u r r e n t ? s e e t a b l e s i n p u t r e v e r s e v o l t a g e ? n o n e p r o t e c t i o n i n p u t f i l t e r ? p i n e t w o r k u n d e r v o l t a g e l o c k o u t ? q s b 7 5 - 1 5 0 : 2 4 v i n : - t u r n o n 8 . 8 v , t u r n o f f 8 . 0 v f o r 9 - 3 6 v , q s b 2 0 0 : 2 4 v i n - t u r n o n 9 . 6 v , t u r n o f f 8 . 8 v , q s b 7 5 - 2 0 0 : 4 8 v i n - t u r n o n 1 7 . 0 v , t u r n o f f 1 6 . 0 v , q s b 3 5 0 : 2 4 v i n - t u r n o n 1 7 . 0 v , t u r n o f f 1 6 . 0 v , q s b 3 5 0 : 4 8 v i n - t u r n o n 3 5 . 0 v , t u r n o f f 3 3 . 0 v i n p u t s u r g e ? 2 4 v i n : 5 0 v d c f o r 1 0 0 m s 4 8 v i n : 1 0 0 v d c f o r 1 0 0 m s o u t p u t o u t p u t v o l t a g e t r i m ? 1 0 % , s e e a p p l i c a t i o n n o t e s i n i t i a l s e t a c c u r a c y ? 1 . 5 % m a x l i n e r e g u l a t i o n ? 0 . 2 % m a x m e a s u r e d f r o m h i g h l i n e t o l o w l i n e l o a d r e g u l a t i o n ? 0 . 2 % m a x m e a s u r e d f r o m 0 - 1 0 0 % l o a d t r a n s i e n t r e s p o n s e ? 5 % m a x d e v i a t i o n , r e c o v e r y t o w i t h i n 1 % i n 5 0 0 s , 2 5 % s t e p l o a d c h a n g e r i p p l e & n o i s e ? 3 . 3 & 5 v m o d e l s : 1 0 0 m v p k - p k 1 2 & 1 5 v m o d e l s : 1 5 0 m v p k - p k 2 4 v & 2 8 v m o d e l s : 2 8 0 m v m a x p k - p k 2 0 m h z b a n d w i d t h ( s e e n o t e 1 ) o v e r v o l t a g e p r o t e c t i o n ? 1 1 5 - 1 4 0 % s h o r t c i r c u i t p r o t e c t i o n ? c o n t i n u o u s t h e r m a l s h u t d o w n ? c a s e t e m p e r a t u r e > 1 0 5 c t e m p e r a t u r e ? 0 . 0 3 % / c c o e f f i c i e n t c u r r e n t l i m i t ? 1 1 0 - 1 4 0 % n o m i n a l o u t p u t f o r 7 5 & 1 5 0 w 1 1 0 - 1 6 0 % n o m i n a l o u t p u t f o r 1 0 0 w 1 1 0 - 1 5 0 % n o m i n a l o u t p u t f o r 2 0 0 w 1 0 5 - 1 4 0 % n o m i n a l o u t p u t f o r 3 5 0 w r e m o t e o n / o f f ? s e e n o t e s 2 & 3 r e m o t e s e n s e ? c o m p e n s a t e s u p t o 1 0 % o f v o u t n o m i n a l , t o t a l o f o u t p u t t r i m a n d r e m o t e s e n s e x p p o w e r . c o m g e n e r a l e f f i c i e n c y ? s e e t a b l e s i s o l a t i o n v o l t a g e ? 1 5 0 0 v d c i n p u t t o o u t p u t 1 5 0 0 v d c i n p u t t o c a s e 1 5 0 0 v d c o u t p u t t o c a s e i s o l a t i o n r e s i s t a n c e ? 1 0 7 ? i s o l a t i o n c a p a c i t a n c e ? q s b 7 5 - 2 0 0 : 1 0 0 p f t y p i c a l , q s b 3 5 0 : 1 0 0 0 p f t y p i c a l s w i t c h i n g f r e q u e n c y ? q s b 7 5 : 3 0 0 k h z t y p i c a l q s b 1 0 0 , 1 5 0 & 2 0 0 : 2 5 0 k h z t y p i c a l q s b 3 5 0 ( 3 v 3 & 5 v ) : 3 0 0 k h z t y p i c a l q s b 3 5 0 ( 1 2 , 2 4 & 2 8 v ) : 3 3 0 k h z t y p i c a l p o w e r d e n s i t y ? q s b 7 5 : 4 5 . 4 w / i n 3 , q s b 1 0 0 : 6 0 . 5 w / i n 3 , q s b 1 5 0 : 5 7 . 2 w / i n 3 , q s b 2 0 0 : 7 0 . 3 w / i n 3 , q s b 3 5 0 : 1 2 3 . 0 w / i n 3 m t b f ? q s b 7 5 & 1 0 0 : 7 3 0 k h r s q s b 1 5 0 & 2 0 0 : 1 m h r s q s b 3 5 0 : 6 5 8 k h r s t y p i c a l t o m i l - h d b k - 2 1 7 f a t 2 5 c , g b e n v i r o n m e n t a l o p e r a t i n g b a s e p l a t e ? - 4 0 c t o + 1 0 0 c , s e e d e r a t i n g c u r v e s t e m p e r a t u r e s t o r a g e t e m p e r a t u r e ? - 5 5 c t o + 1 0 5 c o p e r a t i n g h u m i d i t y ? u p t o 9 0 % n o n - c o n d e n s i n g c o o l i n g ? b a s e p l a t e c o o l e d , s e e d e r a t i n g c u r v e s s h o c k ? 3 0 g p k , h a l f s i n k w a v e f o r 1 8 m s 3 p u l s e s p e r f a c e , a l l 6 f a c e s t e s t e d v i b r a t i o n ? 5 - 5 0 0 h z s t 3 g , 1 0 m i n s p e r a x i s e m c & s a f e t y e m i s s i o n s ? e n 5 5 0 2 2 , l e v e l a c o n d u c t e d w i t h e x t e r n a l c o m p o n e n t s , s e e t e s t r e p o r t s f o r f u r t h e r d e t a i l s e s d i m m u n i t y ? e n 6 1 0 0 0 - 4 - 2 , l e v e l 2 , p e r f c r i t e r i a b r a d i a t e d i m m u n i t y ? e n 6 1 0 0 0 - 4 - 3 , 3 v / m , p e r f c r i t e r i a a e f t / b u r s t ? e n 6 1 0 0 0 - 4 - 4 , l e v e l 1 , p e r f c r i t e r i a a * s u r g e ? e n 6 1 0 0 0 - 4 - 5 , l e v e l 1 , p e r f c r i t e r i a a * c o n d u c t e d i m m u n i t y ? e n 6 1 0 0 0 - 4 - 6 , 3 v r m s p e r f c r i t e r i a a s a f e t y a p p r o v a l s ? q s b 1 5 0 & q s b 2 0 0 : u l 6 0 9 5 0 - 1 * r e c o m m e n d e d p r o t e c t i o n s m c j 4 0 a f o r 2 4 v i n , s m c j 7 8 a f o r 4 8 v i n
d c d c q s b 7 5 / 1 0 0 m o d e l s a n d r a t i n g s n o t e s n o t e s 1 . r i p p l e & n o i s e i s m e a s u r e d w i t h a 1 0 f t a n t a l u m c a p a c i t o r a n d 1 . 0 f c e r a m i c c a p a c i t o r a c r o s s o u t p u t . 2 . l o g i c c o m p a t i b i l i t y : r e f t o - v e i n p u t . m o d u l e o n = o p e n c i r c u i t . m o d u l e o f f = < 0 . 8 v d c . 3 . a d d s u f f i x n t o t h e m o d e l n u m b e r t o r e c e i v e t h e u n i t w i t h n e g a t i v e l o g i c r e m o t e o n / o f f . 4 . i n p u t c u r r e n t s p e c i f i e d a t 2 4 v f o r 9 - 3 6 v d c a n d 4 8 v f o r 1 8 - 7 5 v d c m o d e l s . m e c h a n i c a l d e t a i l s i n p u t v o l t a g e o u t p u t v o l t a g e o u t p u t c u r r e n t i n p u t c u r r e n t ( 4 ) e f f i c i e n c y m o d e l n u m b e r ( 3 ) n o l o a d f u l l l o a d 9 - 3 6 v d c ( 2 4 v n o m i n a l ) 3 . 3 v 1 2 . 0 0 a 5 0 m a 2 . 0 4 a 8 1 . 0 % q s b 7 5 2 4 s 3 v 3 5 . 0 v 1 2 . 0 0 a 5 0 m a 2 . 9 8 a 8 4 . 0 % q s b 7 5 2 4 s 0 5 1 2 . 0 v 6 . 2 5 a 5 0 m a 3 . 6 4 a 8 6 . 0 % q s b 7 5 2 4 s 1 2 1 5 . 0 v 5 . 0 0 a 5 0 m a 3 . 6 4 a 8 6 . 0 % q s b 7 5 2 4 s 1 5 2 4 . 0 v 3 . 1 2 a 5 0 m a 3 . 6 3 a 8 6 . 0 % q s b 7 5 2 4 s 2 4 1 8 - 7 5 v d c ( 4 8 v n o m i n a l ) 3 . 3 v 1 2 . 0 0 a 3 0 m a 1 . 1 0 a 8 2 . 0 % q s b 7 5 4 8 s 3 v 3 5 . 0 v 1 2 . 0 0 a 3 0 m a 1 . 4 7 a 8 5 . 0 % q s b 7 5 4 8 s 0 5 1 2 . 0 v 6 . 2 5 a 3 0 m a 1 . 8 2 a 8 6 . 0 % q s b 7 5 4 8 s 1 2 1 5 . 0 v 5 . 0 0 a 3 0 m a 1 . 8 0 a 8 7 . 0 % q s b 7 5 4 8 s 1 5 2 4 . 0 v 3 . 1 2 a 3 0 m a 1 . 8 0 a 8 7 . 0 % q s b 7 5 4 8 s 2 4 9 - 3 6 v d c ( 2 4 v n o m i n a l ) 3 . 3 v 3 0 . 0 0 a 1 2 0 m a 4 . 8 0 a 8 6 . 0 % q s b 1 0 0 2 4 s 3 v 3 5 . 0 v 2 0 . 0 0 a 1 2 0 m a 4 . 8 2 a 8 6 . 5 % q s b 1 0 0 2 4 s 0 5 1 2 . 0 v 8 . 3 0 a 8 0 m a 4 . 8 0 a 8 6 . 5 % q s b 1 0 0 2 4 s 1 2 1 5 . 0 v 6 . 7 0 a 8 0 m a 4 . 8 4 a 8 6 . 5 % q s b 1 0 0 2 4 s 1 5 2 4 . 0 v 4 . 1 7 a 8 0 m a 4 . 7 9 a 8 7 . 0 % q s b 1 0 0 2 4 s 2 4 1 8 - 7 5 v d c ( 4 8 v n o m i n a l ) 3 . 3 v 3 0 . 0 0 a 6 0 m a 2 . 3 7 a 8 8 . 0 % q s b 1 0 0 4 8 s 3 v 3 5 . 0 v 2 0 . 0 0 a 6 0 m a 2 . 3 7 a 8 8 . 0 % q s b 1 0 0 4 8 s 0 5 1 2 . 0 v 8 . 3 0 a 3 0 m a 2 . 3 6 a 8 8 . 0 % q s b 1 0 0 4 8 s 1 2 1 5 . 0 v 6 . 7 0 a 3 0 m a 2 . 3 8 a 8 8 . 0 % q s b 1 0 0 4 8 s 1 5 2 4 . 0 v 4 . 1 7 a 3 0 m a 2 . 3 7 a 8 8 . 0 % q s b 1 0 0 4 8 s 2 4 1 . 0 3 ( 2 6 . 2 ) 1 . 4 5 ( 3 6 . 8 ) 2 . 0 0 ( 5 0 . 8 0 ) 1 0 . 6 0 ( 1 5 . 2 4 ) 0 . 5 0 ( 1 2 . 7 0 ) 0 . 1 6 ( 4 . 1 ) m i n . ? 0 . 0 4 0 ( 1 . 0 2 ) p i n s 1 , 2 , 3 , 5 , 6 , 7 ? 0 . 0 5 9 ( 1 . 5 0 ) p i n s 4 , 8 3 2 4 6 7 8 5 2 . 2 8 ( 5 7 . 9 0 ) 1 . 1 4 ( 2 8 . 9 6 ) 0 . 7 3 ( 1 8 . 4 2 ) 0 . 6 0 ( 1 5 . 2 4 ) m o u n t i n g h o l e d i a m e t e r : 0 . 1 2 6 ( 3 . 2 ) c l e a r a n c e h o l e 0 . 3 0 ( 7 . 6 2 ) 1 . 8 6 ( 4 7 . 2 0 ) b o t t o m v i e w p i n c o n n e c t i o n s p i n f u n c t i o n 1 + v i n 2 r e m o t e o n / o f f 3 - v i n 4 - v o u t 5 - s e n s e 6 t r i m 7 + s e n s e 8 + v o u t 1 . d i m e n s i o n s a r e i n i n c h e s ( m m ) 2 . t o l e r a n c e s : x . x x = 0 . 0 2 ( x . x = 0 . 5 ) x . x x x = 0 . 0 1 ( x . x x = 0 . 2 5 ) 3 . w e i g h t : 0 . 1 5 l b s ( 6 6 g ) a p p r o x a i r f l o w r a t e t y p i c a l r c a n a t u r a l c o n v e c t i o n 2 0 f t . / m i n ( 0 . 1 m s ) 1 0 . 1 c / w 1 0 0 f t . / m i n ( 0 . 5 m s ) 8 . 0 c / w 2 0 0 f t . / m i n ( 1 . 0 m s ) 5 . 4 c / w 3 0 0 f t . / m i n ( 1 . 5 m s ) 4 . 4 c / w 4 0 0 f t . / m i n ( 2 . 0 m s ) 3 . 4 c / w r c a = t h e r m a l r e s i s t a n c e c a s e t o a m b i e n t t h e r m a l r e s i s t a n c e i n f o r m a t i o n m a x i m u m p o w e r d i s s i p a t i o n v s a m b i e n t t e m p e r a t u r e a n d a i r f l o w w i t h o u t h e a t s i n k 0 2 4 6 8 1 0 1 2 1 4 1 6 1 8 2 0 2 2 2 4 2 6 2 8 3 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0 a m b i e n t t e m p e r a t u r e , t a ( o c ) p o w e r d i s s i p a t e d , p d ( w ) n a t u r a l c o n v e c t i o n 2 0 f t . / m i n . ( 0 . 1 m / s ) 1 0 0 f t . / m i n . ( 0 . 5 m / s ) 2 0 0 f t . / m i n . ( 1 . 0 m / s ) 3 0 0 f t . / m i n . ( 1 . 5 m / s ) 4 0 0 f t . / m i n . ( 2 . 0 m / s ) d e r a t i n g c u r v e
d c d c q s b 1 5 0 3 5 0 m o d e l s & r a t i n g s i n p u t v o l t a g e o u t p u t v o l t a g e o u t p u t c u r r e n t i n p u t c u r r e n t ( 4 ) e f f i c i e n c y m o d e l n u m b e r ( 3 ) n o l o a d f u l l l o a d 9 - 3 6 v d c ( 2 4 v n o m i n a l ) 3 . 3 v 3 0 . 0 0 a 2 0 0 m a 4 . 7 5 a 8 7 . 0 % q s b 1 5 0 2 4 s 3 v 3 5 . 0 v 3 0 . 0 0 a 2 0 0 m a 7 . 1 9 a 8 7 . 0 % q s b 1 5 0 2 4 s 0 5 1 2 . 0 v 1 2 . 5 0 a 1 0 0 m a 7 . 1 0 a 8 8 . 0 % q s b 1 5 0 2 4 s 1 2 1 5 . 0 v 1 0 . 0 0 a 1 0 0 m a 7 . 1 9 a 8 7 . 0 % q s b 1 5 0 2 4 s 1 5 2 4 . 0 v 6 . 5 0 a 1 0 0 m a 7 . 3 4 a 8 8 . 0 % q s b 1 5 0 2 4 s 2 4 1 8 - 7 5 v d c ( 4 8 v n o m i n a l ) 3 . 3 v 3 0 . 0 0 a 1 0 0 m a 2 . 3 4 a 8 8 . 0 % q s b 1 5 0 4 8 s 3 v 3 5 . 0 v 3 0 . 0 0 a 1 0 0 m a 3 . 4 7 a 9 0 . 0 % q s b 1 5 0 4 8 s 0 5 1 2 . 0 v 1 2 . 5 0 a 5 0 m a 3 . 4 4 a 9 1 . 0 % q s b 1 5 0 4 8 s 1 2 1 5 . 0 v 1 0 . 0 0 a 5 0 m a 3 . 4 7 a 9 0 . 0 % q s b 1 5 0 4 8 s 1 5 2 4 . 0 v 6 . 5 0 a 5 0 m a 3 . 6 1 a 9 0 . 0 % q s b 1 5 0 4 8 s 2 4 1 0 - 3 6 v d c ( 2 4 v n o m i n a l ) 3 . 3 v 5 0 . 0 0 a 1 5 0 m a 7 . 9 0 a 8 7 . 0 % q s b 2 0 0 2 4 s 3 v 3 5 . 0 v 4 0 . 0 0 a 1 5 0 m a 9 . 5 8 a 8 7 . 0 % q s b 2 0 0 2 4 s 0 5 1 2 . 0 v 1 6 . 7 0 a 1 0 0 m a 9 . 7 1 a 8 6 . 0 % q s b 2 0 0 2 4 s 1 2 1 5 . 0 v 1 3 . 3 0 a 1 0 0 m a 9 . 6 7 a 8 6 . 0 % q s b 2 0 0 2 4 s 1 5 2 4 . 0 v 8 . 3 0 a 1 0 0 m a 9 . 5 4 a 8 7 . 0 % q s b 2 0 0 2 4 s 2 4 1 8 - 7 5 v d c ( 4 8 v n o m i n a l ) 3 . 3 v 4 0 . 0 0 a 8 0 m a 3 . 1 3 a 8 8 . 0 % q s b 2 0 0 4 8 s 3 v 3 5 . 0 v 4 0 . 0 0 a 8 0 m a 4 . 6 9 a 8 9 . 0 % q s b 2 0 0 4 8 s 0 5 1 2 . 0 v 1 6 . 7 0 a 6 0 m a 4 . 7 4 a 8 8 . 0 % q s b 2 0 0 4 8 s 1 2 1 5 . 0 v 1 3 . 3 0 a 6 0 m a 4 . 7 2 a 8 8 . 0 % q s b 2 0 0 4 8 s 1 5 2 4 . 0 v 8 . 3 0 a 6 0 m a 7 . 7 2 a 8 8 . 0 % q s b 2 0 0 4 8 s 2 4 1 8 - 3 6 v d c ( 2 4 v n o m i n a l ) 3 . 3 v 7 0 . 0 a 1 3 0 m a 1 0 . 9 4 a 8 8 . 0 % q s b 3 5 0 2 4 s 3 v 3 5 . 0 v 7 0 . 0 a 2 5 0 m a 1 6 . 2 9 a 8 9 . 5 % q s b 3 5 0 2 4 s 0 5 1 2 . 0 v 2 9 . 2 a 2 2 0 m a 1 5 . 9 6 a 9 1 . 5 % q s b 3 5 0 2 4 s 1 2 2 4 . 0 v 1 4 . 6 a 4 0 m a 1 6 . 2 2 a 9 0 . 0 % q s b 3 5 0 2 4 s 2 4 2 8 . 0 v 1 2 . 5 a 5 0 m a 1 6 . 0 3 a 9 1 . 0 % q s b 3 5 0 2 4 s 2 8 ( 5 ) 4 8 . 0 v 7 . 3 a 6 0 m a 1 6 . 2 2 a 9 0 . 0 % q s b 3 5 0 2 4 s 4 8 ( 5 ) 3 6 - 7 5 v d c ( 4 8 v n o m i n a l ) 3 . 3 v 7 0 . 0 a 8 0 m a 5 . 4 1 a 8 9 . 0 % q s b 3 5 0 4 8 s 3 v 3 5 . 0 v 7 0 . 0 a 1 2 0 m a 8 . 0 1 a 9 1 . 0 % q s b 3 5 0 4 8 s 0 5 1 2 . 0 v 2 9 . 2 a 1 0 0 m a 7 . 8 9 a 9 2 . 5 % q s b 3 5 0 4 8 s 1 2 2 4 . 0 v 1 4 . 6 a 4 0 m a 7 . 9 8 a 9 1 . 5 % q s b 3 5 0 4 8 s 2 4 2 8 . 0 v 1 2 . 5 a 3 0 m a 7 . 8 8 a 9 2 . 5 % q s b 3 5 0 4 8 s 2 8 ( 5 ) 4 8 . 0 v 7 . 3 a 6 0 m a 7 . 9 3 a 9 2 . 0 % q s b 3 5 0 4 8 s 4 8 ( 5 ) n o t e s n o t e s 1 . r i p p l e & n o i s e i s m e a s u r e d w i t h a 1 0 f t a n t a l u m c a p a c i t o r a n d 1 . 0 f c e r a m i c c a p a c i t o r a c r o s s o u t p u t . 2 . l o g i c c o m p a t i b i l i t y : r e f t o - v e i n p u t . m o d u l e o n = o p e n c i r c u i t . m o d u l e o f f = < 0 . 8 v d c . 3 . a d d s u f f i x n t o t h e m o d e l n u m b e r t o r e c e i v e t h e u n i t w i t h n e g a t i v e l o g i c r e m o t e o n / o f f . 4 . i n p u t c u r r e n t s p e c i f i e d a t 2 4 v f o r 1 0 - 3 6 v d c m o d e l s a n d 4 8 v f o r 1 8 - 7 5 v d c m o d e l s . 5 . a d d a n e x t e r n a l c a p a c i t o r o f 1 0 0 f m i n i m u m t o m a i n t a i n s p e c i f i e d r e g u l a t i o n . b o t t o m v i e w ( 4 8 . 3 ) 1 . 9 0 2 . 2 8 ( 5 7 . 9 ) 1 . 1 4 ( 2 9 . 0 ) 1 . 2 0 ( 3 0 . 5 ) 1 . 4 0 2 . 0 0 1 0 . 6 0 ( 3 5 . 6 ) ( 5 0 . 8 ) ( 1 5 . 2 ) 3 2 4 m o u n t i n g h o l e d i a m e t e r : 0 . 1 2 6 ( 3 . 2 ) c l e a r a n c e h o l e 0 . 1 8 m i n . 2 . 4 0 s i d e v i e w ( 1 3 . 2 ) 0 . 5 2 9 6 7 8 5 ( 6 1 . 0 ) ( 4 . 6 ) ? 0 . 0 4 ( 1 . 0 2 ) p i n s 2 , 3 , 6 , 7 & 8 ? 0 . 0 8 ( 2 . 0 3 ) p i n s 1 , 4 , 5 & 9 p i n c o n n e c t i o n s p i n f u n c t i o n 1 + v i n 2 r e m o t e o n / o f f 3 c a s e 4 - v i n 5 - v o u t 6 - s e n s e 7 t r i m 8 + s e n s e 9 + v o u t 1 . d i m e n s i o n s a r e i n i n c h e s ( m m ) 2 . t o l e r a n c e s : x . x x = 0 . 0 2 ( x . x = 0 . 5 ) x . x x x = 0 . 0 1 ( x . x x = 0 . 2 5 ) 3 . w e i g h t : 0 . 2 5 l b s ( 1 1 4 g ) a p p r o x m e c h a n i c a l d e t a i l s
d c d c 0 9 - s e p t - 1 4 a p p l i c a t i o n n o t e s q s b 1 5 0 3 5 0 t h e r m a l r e s i s t a n c e i n f o r m a t i o n v o l t a g e t r i m u p c o n n e c t t r i m r e s i s t o r r t r i m b e t w e e n t r i m p i n a n d - s e n s e p i n . w h e r e : r t r i m u p / d o w n i s t h e e x t e r n a l r e s i s t o r i n k ? . v n o m i s t h e n o m i n a l o u t p u t v o l t a g e . v d e s i s t h e d e s i r e d o u t p u t v o l t a g e . r 1 , r 2 , r 3 a n d v r a r e i n t e r n a l t o t h e u n i t a n d a r e d e f i n e d i n t h e t a b l e b e l o w . v o l t a g e t r i m d o w n c o n n e c t t r i m r e s i s t o r r t r i m b e t w e e n t r i m p i n a n d + s e n s e p i n v o l t a g e t r i m u p - v o l t a g e t r i m u p , c o n n e c t t r i m r e s i s t o r r t r i m b e t w e e n t r i m p i n a n d + s e n s e p i n . v o l t a g e t r i m d o w n - c o n n e c t t r i m r e s i s t o r r t r i m b e t w e e n t r i m p i n a n d C s e n s e p i n r t r i m u p = v d e s - v n o m r 2 x r 3 ( k ) r 2 + r 3 - r 1 v r - v f r 2 r 2 + r 3 r t r i m d o w n = v n o m - v d e s - r 2 ( k ) r 1 x ( v d e s - v r ) r t r i m d o w n = k - 1 0 . 2 2 5 1 1 % v n o m - v d e s v n o m w h e r e : % = x 1 0 0 r t r i m u p = k -- k x % 5 1 1 1 0 . 2 2 5 . 1 1 v n o m ( 1 0 0 + % ) % v d e s - v n o m v n o m w h e r e : % = x 1 0 0 o u t p u t v o l t a g e ( v ) r 1 ( k ? ) r 2 ( k ? ) r 3 ( k ? ) v r ( v ) v f ( v ) 3 . 3 v 3 . 0 0 1 2 . 0 4 . 3 1 . 2 4 0 . 4 6 5 . 0 v 2 . 3 2 3 . 3 0 . 0 2 . 5 0 . 0 1 2 . 0 v 9 . 1 0 5 1 . 0 5 . 1 2 . 5 0 . 4 6 1 5 . 0 v 1 2 . 0 5 6 . 0 8 . 2 5 2 . 5 0 . 4 6 2 4 . 0 v 2 0 . 0 1 0 0 . 0 7 . 5 2 . 5 0 . 4 6 o u t p u t v o l t a g e t r i m q s b 1 0 0 , q s b 2 0 0 & q s b 3 5 0 s e r i e s a i r f l o w r a t e t y p i c a l r c a n a t u r a l c o n v e c t i o n 2 0 f t . / m i n ( 0 . 1 m s ) 7 . 1 2 c / w 1 0 0 f t . / m i n ( 0 . 5 m s ) 6 . 2 1 c / w 2 0 0 f t . / m i n ( 1 . 0 m s ) 5 . 1 7 c / w 3 0 0 f t . / m i n ( 1 . 5 m s ) 4 . 2 9 c / w 4 0 0 f t . / m i n ( 2 . 0 m s ) 3 . 6 4 c / w 5 0 0 f t . / m i n ( 2 . 5 m s ) 2 . 9 6 c / w 6 0 0 f t . / m i n ( 3 . 0 m s ) 2 . 5 3 c / w 7 0 0 f t . / m i n ( 3 . 5 m s ) 2 . 3 7 c / w 8 0 0 f t . / m i n ( 4 . 0 m s ) 2 . 1 9 c / w r c a = t h e r m a l r e s i s t a n c e c a s e t o a m b i e n t 0 5 10 1 5 2 0 25 30 35 4 0 45 50 0 10 20 30 40 50 60 70 80 90 100 p o w e r d i s s i p a t e d , p d ( w ) n atural convection 20 ft./min. (0.1 m/s) 100 ft./min. (0.5 m/s) 200 ft./min. (1.0 m/s) 300 ft./min. (1.5 m/s) 400 ft./min. (2.0 m/s) 500 ft./min. (2.5 m/s) 600 ft./min. (3.0 m/s) 7 00 ft./min. (3.5 m/s) 8 00 ft./min. (4.0 m/s) a m b i e n t t e m p e r a t u r e , t a ( o c ) m a x i m u m p o w e r d i s s i p a t i o n v s a m b i e n t t e m p e r a t u r e a n d a i r f l o w w i t h o u t h e a t s i n k d e r a t i n g c u r v e o u t p u t v o l t a g e t r i m q s b 7 5 & q s b 1 5 0 s e r i e s v a l u e q s b 1 0 0 / 2 0 0 q s b 3 5 0 k 1 . 2 2 5 1 . 2 4
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