a 75 w a tt a s d-q s i n gle seri es dc/dc co nvert er s 1 f e a t u r e s small size 1.45?x2.28?x0.52?, i nd ust ry sta nd ard 1 /4 br i ck excellent thermal performance with metal baseplate fa st ov er v ol ta ge prot ecti o n pulse-by-pulse current limiting, dead short current limiting over-temperature protection auto-softstart very low noise low magnetics run cooler constant frequency for normal operation wide i np ut vol ta ge rang e remote sense with high regulation remote on/off super energy saving, 6 ma input idle current output trim with very low temperature water washable, wide humidity applications g oo d sh ock an d v ib ra ti on d ampi ng d e s c r i p t i o n the 75 watt single a s d - q series of dc/dc converters provide precisely regulated dc outputs. all outputs are fully isolated from the inputs, allowing the output to be used with positive or negative polarity and various grounding options. the a s d - q series utilizes an insulated metal substrate design in an industry standard features include remote sensing, output trim, and remote threaded-through holes are provided to allow easy mounting or add a heat sink for extended temperature u s e . t r a h c n o i t c e l e s l e d o m e g n a r t u p n i c d v n i i @ c d a m o n t u o v c d v t u o i c d a n i m x a m p y t asd75-24s3.3q 3.31 20 36 3 6 . 3 5 5 1 8 1 6 3 9 5 . 3 2 1 5 2 . 6 8 1 6 3 5 5 . 3 5 1 5 8 1 6 3 5 5 . 3 4 2 3 1 . 3 6 3 5 7 5 6 . 1 3 . 3 0 2 6 3 5 7 0 8 . 1 5 5 1 6 3 5 7 8 7 . 1 2 1 5 2 . 6 6 3 5 7 6 7 . 1 5 1 5 6 3 5 7 6 7 . 1 4 2 3 1 . 3 . e v i t i s o p s i c i g o l f f o / n o t l u a f e d . c i g o l f f o / n o e v i t a g e n r e d r o o t r e b m u n l e d o m e h t o t n - d d a 18 36 3.3 asd75-24s5q 18 asd75-24s12q asd75-24s15q asd75-24s24q asd75-48s3.3q asd75-48s5q asd75-48s12q asd75-48s15q asd75-48s24q 375 forbes blvd. mansfield, ma 02048 ph: 800-823-8082 fax: 508-339-0375 www.astrodyne.com email: sales@astrodyne.com standard 1/4 brick case size to meet the most rigorous require- ments of cots and thermally challenging industrial applications.
a u nle ss othe rwise state d, the se ap p ly f or amb ie n t t e mp e ra tur e t a =2 3 2 c , n om ina l in p ut v o lta g e , a nd r at e d f u ll l oa d. (1 ) s r e t e m a r a p t u p n i l e d o m asd75-24s3.3q s t i n u e g n a r e g a t l o v n i m p y t x a m 8 1 4 2 6 3 c d v * e g a t l o v r e v o t u p n i c e s m 0 0 1 x a 0 m c 5 d v n o i t c e j e r e l p p i r t u p n i ) z h 0 2 1 ( p y 0 t b 6 d t u o k c o l e g a t l o v r e d n u s e y n o i t c e t o r p e g a t l o v e s r e v e r t u p n i s e y d a o l o n t n e r r u c t u p n i d a o l % 0 0 1 p y t p y t 0 5 3 . 3 0 5 6 . 3 0 5 6 . 3 0 5 6 . 3 0 5 6 . 3 a m a t n e r r u c h s u r n x i a 2 m . a 0 2 s h 2 1 , e l p p i r d e t c e l f e r ) 3 ( e c n a d e p m i e c r u o s p y 0 t p 1 - p a m y c n e i c i f f p e y t 2 8 4 8 6 8 7 8 7 8 % y c n e u q e r f g n i h c t i w p s y 0 t 6 z 3 h k e s u f d e d n e m m o c e r ) 2 s ( p m a s r e t e m a r a p t u p n i l e d o m s t i n u e g n a r e g a t l o v n i m p y t x a m 6 3 8 4 5 7 c d v * e g a t l o v r e v o t u p n i c e s m 0 0 1 x a 5 m c 8 d v n o i t c e j e r e l p p i r t u p n i ) z h 0 2 1 ( p y 0 t b 6 d t u o k c o l e g a t l o v r e d n u s e y n o i t c e t o r p e g a t l o v e s r e v e r t u p n i s e y d a o l o n t n e r r u c t u p n i d a o l % 0 0 1 p y t p y t 0 8 7 . 1 0 8 8 . 1 0 8 8 . 1 0 8 8 . 1 0 8 8 . 1 a m a t n e r r u c h s u r n x i a 2 m . a 0 2 s h 2 1 , e l p p i r d e t c e l f e r ) 3 ( e c n a d e p m i e c r u o s p y 0 t p 1 - p a m y c n e i c i f f p e y t 2 8 4 8 6 8 7 8 7 8 % y c n e u q e r f g n i h c t i w p s y 0 t 6 z 3 h k e s u f d e d n e m m o c e r ) 2 s ( p m a * absolute maximum ratings. caution: stresses in excess of the absolute maximum ratings can cause permanent damage to the devic e (see note 1). asd75-24s5q asd75-24s12q asd75-24s15q asd75-24s24q asd75-48s3.3q asd75-48s5q asd75-48s12q asd75-48s15q asd75-48s24q 75 w a tt a s d-q s i n gle seri es dc/dc co nvert er s 375 forbes blvd. mansfield, ma 02048 ph: 800-823-8082 fax: 508-339-0375 www.astrodyne.com email: sales@astrodyne.com
a u nle ss othe rwise state d, the se ap p ly f or amb ie n t t e mp e ra tur e t a =2 3 2 c , n om ina l in p ut v o lta g e , a nd r at e d f u ll l oa d. (1 ) n o t e s : (1) refer to the astrodyne application notes for terms, measurement circuits, and other information. (2) refer to the astrodyne application notes for information on fusing. for inrush current, refer to the above. (3) 33 f capacitor connected to two ?input? pins. then place current sensor in series with 12 h inductor between 33 f and the source. the ripple current is measured over 5 hz to 20 mhz bandwidth (current sensor is located between the converter input pin and the 12 h inductor). (4) optimum performance is obtained when this power supply is operated within the minimum to maximum load no damage to module will occur when the output is operated at less than minimum load, but the output voltage may contain a l o w f r e q u e n c y c o m p o n e n t t h a t m a y e x c e e d o u t p u t n o i s e . (5) load regulation is as the output voltage change when changing load current from maximum to minimum. the voltage is measured at the output pin. (6) load transient recovery time is as the time for the o ut pu t t o s et tl e fr om a 50 to 75% or 25% st ep lo ad ch an ge to a 1% err or ban d of ou tput vo ltage (r ise ti me of st ep = 2 sec) . (7) load transient overshoot is as the peak overshoot during a transient as in the note 6 above. (8) noise is measured per the astrodyne application notes. output noise is measured with a 10 f tantalum capacitor in parallel with a 0.1 f ceramic capacitor connected across the output to cmn. measurement bandwidth is 0-20 mhz. (9) when an external switch is used, such as open collector switch, logic high requires the switch to be high-impedance. switch leakage currents greater than 20 a may be to trigger the to the logi c-low stat e . (10) most switches would be suitable for logic control, in case there is a problem, you can make following estimation and then leave some margin. when open collector is used for logic high, ?open circuit voltage at pin?, ?output resistance? and ?external leakage current allowed for logic high? are used to estimate the high impedance requirement of open collector. when switch is used for logic low, ?open circuit voltage at on/ pin?, ?output resistance? and ?low logic level? are used to estimate the low impedance requirement of switch. (1 1 ) t h e r m a l i m p e d a n c e i s t e s t e d w i t h t h e c o n v e r t e r m o u n t e d v e r t i c a l l y a n d f a c i n g a n o t h e r p r i n t e d c i r c u i t b o a r d 1 / 2 i n c h a w a y . i f converter is mounted horizontally with no obstructions, thermal impedance is approximately 10 c/w. if heat sink is needed, apply a very thin layer of thermally conductive grease on the metal base of converter, then properly tighten the screws. (12) water washability - these dc/dc converters are designed to withstand most solder/wash processes. careful attention should b e u s e d w h e n a s s e s s i n g t h e a p p l i c a b i l i t y i n y o u r c manufacturing process. converters are not hermetically sealed. (13) torque fasteners into threaded mounting inserts at 12 in. oz. or less. greater torque may result in damage to unit and void the w a r r a n t y . s r e t e m a r a p t u p t u o l e d o m s t i n u e g a t l o v t u p t u 3 o . 3 5 2 1 5 1 4 2 c d v e g a t l o v t u p t u o y c a r u c c a t n i o p t e s x a 1 m % t o o h s r e v o n o n r u p t y % 0 t t n e i c i f f e o c e r u t a r e p m e t p y t x a m 5 0 0 . 0 1 0 . 0 3 0 0 . 0 5 0 0 . 0 c / % ) 8 ( e s i o p n y t 0 2 0 2 0 4 0 5 0 7 s m r v m e l p p i p r y t 0 3 0 3 5 7 0 0 1 0 5 1 p - p v m ) 4 ( t n e r r u c d a o l n i m x a m 5 0 0 1 % ) 7 ( t o o h s r e v o t n e i s n a r t d a o p l y % 2 t y r e v o c e r t n e i s n a r t d a o l ) 6 ( e m i t p y 8 t . c 0 e s m ) 5 ( n o i t a l u g e r d a o l d a o l x a m - n i m p y t x a m 2 0 . 0 2 . 0 % n o i t a l u g e r e n i l x a m - n i m = n i v p y t x a m 1 0 . 0 1 . 0 % ) p v o ( n o i t c e t o r p e g a t l o v r e v o d l o h h s e r h t g n i h c t a l - n o n - e p y t p v o e g a t l o v r e v o p o o l n e p o p m a l c n i m x a m 5 1 1 5 3 1 % t i m i l t n e r r u c t u p t u o m o n - t u o v f o % 0 9 = t u o v p y 0 t 2 % 1 t n e r r u c t i u c r i c t r o h s t u p t u o v 1 . 0 = t u o v p y t x a m 0 5 1 0 6 1 % asd75-24s3.3q asd75-24s5q asd75-24s12q asd75-24s15q asd75-24s24q asd75-48s3.3q asd75-48s5q asd75-48s12q asd75-48s15q asd75-48s24q 75 w a tt a s d-q s i n gle seri es dc/dc co nvert er s 375 forbes blvd. mansfield, ma 02048 ph: 800-823-8082 fax: 508-339-0375 www.astrodyne.com email: sales@astrodyne.com
s n o i t a c i f i c e p s l a r e n e g s l e d o m l l s a t i n u n o i t c n u f f f o / n o e t o m e r l e v e l c i g o l h g i h n i p f f o / n o e v a e l r o n e p o n i m 0 . 3 c d v t n e r r u c e g a k a e l l a n r e t x e ) 9 ( h g i h c i g o l r o f d e w o l l a x a m 0 2 a n o i t c e t o r p e d o i d t u p n i e g a t l o v x a m 0 5 c d v l e v e l c i g o l w o l t u p n i - o t n i p f f o / n o e i t r o x a m 0 . 1 c d v c i g o l r o f t n e r r u c g n i k n i s w o l x a m 1 a m t a e g a t l o v t i u c r i c n e p o ) 0 1 ( n i p f f o / n o y r a m i r p c i g o l e v i t i s o p c i g o l e v i t a g e n p y t p y t 6 . 5 5 . 1 c d v c d v t n e r r u c e l d i ) f f o s i e l u d o m ( p y t 6 c d a m r o r r e % 1 o t e m i t n o - n r u p t y t 8 c e s m n o i t p o c i g o l e v i t i s o p n o e l u d o m - h g i h f f o e l u d o m - w o l n o i t p o c i g o l e v i t a g e n f f o e l u d o m - h g i h n o e l u d o m - w o l m i r t e g a t l o v t u p t u o e g n a r m i r t n i m x a m 0 1 f o % t u o v e c n a t s i s e r t u p n p i y t 0 1 m h o k e g a t l o v t i u c r i c n e p p o y t 5 . 2 v g n i s n e s e t o m e r e g a t l o v t u p t u o s p o r d e g a t l o v m u m i x a m d a e l n o x a m 5 . 0 c d v n o i t a l u g e r e n i l g n i s n e s e t o m e r r e d n u p y t x a m 2 0 . 0 1 . 0 % n o i t a l u g e r d a o l g n i s n e s e t o m e r r e d n u p y t x a m 5 0 . 0 2 . 0 % t i m i l m i r t d n a e s n e s e g a t l o v t u p t u o m u m i x a x m a m 0 1 1 f o % t u o v n o i t a l o s i * n o i t a l o s i t u p t u o o t t u p n i e g a k a e l a 0 1 s l e d o m v 4 2 = m o n v s l e d o m v 8 4 = m o n v x a m x a m 0 0 7 4 4 5 1 c d v c d v l a t n e m n o r i v n e e r o c l l e b , f b t m d e t a l u c l a c 1 e s a c , 1 d o h t e m 0 0 0 , 0 0 0 , 1 > r h g n i t a r e p o e t a l p e s a b e g n a r e r u t a r e p m e t n i m x a m 0 4 - 0 0 1 c e r u t a r e p m e t e g a r o t s n i m x a m 0 4 - 0 2 1 c ) 1 1 ( e c n a d e p m i l a m r e h p t y t 9 w / c n w o d t u h s l a m r e h t e r u t a r e p m e t e t a l p e s a b ) t r a t s e r o t u a ( n i m p y t 0 0 1 0 1 1 c l a r e n e g n o i s n e m i d e s a " c 0 5 . 0 x " 5 4 . 1 x " 8 2 . 2 g n i d n e p s l a v o r p p a y c n e g 0 a 5 9 0 6 l u c / l u t i k g n i t n u o m s i s s a h 8 c 1 s m s t r e s n i g n i t n u o m n o e u q r o t x a m . z o . n i 2 1 n i n p o i t c n u f 1 t u p n i - 2 f f o / n o 3 t u p n i + t 4 u p t u o - 5 e s n e s - 6 m i r t e 7 s n e s + t 8 u p t u o + * absolute maximum ratings. caution: stresses in excess of the absolute maximum ratings can cause permanent damage to the device (see note 1). m e c h a n i c a l t o l e r a n c e s u n l e s s o t h e r w i s e n o t e d : x . x x d i m e n s i o n s : 0 . 0 2 0 i n c h e s x . x x x d i m e n s i o n s : 0 . 0 0 5 i n c h e s 75 w a tt a s d-q s i n gle seri es dc/dc co nvert er s 375 forbes blvd. mansfield, ma 02048 ph: 800-823-8082 fax: 508-339-0375 www.astrodyne.com email: sales@astrodyne.com
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