a 50 watt he single series dc/dc converters 2401 stanwell drive concord, california 94520 ph: 925/687-4411 or 800/542-3355 fax: 925/687-3333 www.calex.com email: sales@calex.com 1 3/2001 features ! high power density, 16.4 w/in 3 ! small size 2.4" x 2.28" x 0.55" ! industry standard pinout ! excellent thermal performance with metal baseplate ! high efficiency ! volt-seconds clamp and fast over voltage clamp ! pulse-by-pulse current limiting, short circuit frequency foldback, dead short shutdown ! over-temperature protection ! auto-softstart ! low noise ! planar magnetics ! constant frequency for normal operation ! more than 2:1 input voltage range ! remote sense ! remote on/off ! super energy saving, 2 ma input idle current ! output trim with very low temperature coefficient ! water washable, wide humidity applications ! shock & vibration damping ! low cost ! undervoltage lockout ! input reverse voltage protection ! 5 year warranty description the 50 watt single he series 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 he series meets the most rigorous requirements in an industry standard case size for industrial process control and telecom applications. standard features include remote sensing, output trim, and remote on/off. threaded-through holes are provided to allow easy mounting or to add a heat sink for extended temperature use. t r a h c n o i t c e l e s l e d o m m o n n i v c d v n i i c d a t u o v c d v t u o i c d a e h 0 1 . 3 s 4 24 27 6 . 13 . 30 1 e h 0 1 . 5 s 4 24 21 4 . 250 1 e h 4 . 2 1 s 4 24 28 3 . 22 16 1 . 4 e h 3 . 5 1 s 4 24 25 3 . 25 13 3 . 3 e h 2 . 4 2 s 4 24 25 3 . 24 28 0 . 2 e h 0 1 . 3 s 8 48 43 8 .3 . 30 1 e h 0 1 . 5 s 8 48 40 2 . 150 1 e h 4 . 2 1 s 8 48 49 1 . 12 16 1 . 4 e h 3 . 5 1 s 8 48 48 1 . 15 13 3 . 3 e h 2 . 4 2 s 8 48 48 1 . 14 28 0 . 2 : s e t o n . % 8 8 o t p u s e i c n e i c i f f e . 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
a 50 watt he single series dc/dc converters 2401 stanwell drive concord, california 94520 ph: 925/687-4411 or 800/542-3355 fax: 925/687-3333 www.calex.com email: sales@calex.com 2 3/2001 unless otherwise stated, these specifications apply for ambient temperature t a =23 2c, nominal input voltage, and rated full load. (1) s r e t e m a r a p t u p n i l e d o me h 0 1 . 3 s 4 2e h 0 1 . 5 s 4 2e h 4 . 2 1 s 4 2e h 3 . 5 1 s 4 2e h 2 . 4 2 s 4 2s 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 ) z h 0 2 1 ( n o i t c e j e r e l p p i r t u p n ip y t0 6b 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 2 1 7 6 . 1 2 1 1 4 . 2 2 1 8 3 . 2 2 1 5 3 . 2 2 1 5 3 . 2 a m a t n e r r u c h s u r n ix a m5 . 0a 2 s e c r u o s h 2 1 , e l p p i r d e t c e l f e r ) 2 ( e c n a d e p m i p y t0 2p - p a m y c n e i c i f f ep y t3 87 88 88 88 8% y c n e u q e r f g n i h c t i w sp y t0 4 4z h k * e g a t l o v r e v o t u p n i m u m i x a m m u m i x a m s m 0 0 1 x a m0 5c d v e s u f d e d n e m m o c e r ) 3 (s p m a l e d o me h 0 1 . 3 s 8 4e h 0 1 . 5 s 8 4e h 4 . 2 1 s 8 4e h 3 . 5 1 s 8 4e h 2 . 4 2 s 8 4s 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 ) z h 0 2 1 ( n o i t c e j e r e l p p i r t u p n ip y t0 6b 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 2 1 3 8 . 2 1 0 2 . 1 2 1 9 1 . 1 2 1 8 1 . 1 2 1 8 1 . 1 a m a t n e r r u c h s u r n ix a m5 . 0a 2 s e c r u o s h 2 1 , e l p p i r d e t c e l f e r ) 2 ( e c n a d e p m i p y t0 2p - p a m y c n e i c i f f ep y t4 87 88 89 89 8% y c n e u q e r f g n i h c t i w sp y t0 4 4z h k * e g a t l o v r e v o t u p n i m u m i x a m m u m i x a m s m 0 0 1 x a m5 8c d v e s u f d e d n e m m o c e r ) 3 (s p m a
a 50 watt he single series dc/dc converters 2401 stanwell drive concord, california 94520 ph: 925/687-4411 or 800/542-3355 fax: 925/687-3333 www.calex.com email: sales@calex.com 3 3/2001 s r e t e m a r a p t u p t u o l e d o m e h 0 1 . 3 s 4 2 e h 0 1 . 3 s 8 4 e h 0 1 . 5 s 4 2 e h 0 1 . 5 s 8 4 e h 4 . 2 1 s 4 2 e h 4 . 2 1 s 8 4 e h 3 . 5 1 s 4 2 e h 3 . 5 1 s 8 4 e h 2 . 4 2 s 4 2 e h 2 . 4 2 s 8 4 s t i n u e g a t l o v t u p t u o3 . 352 15 14 2c 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 m1 % t o o h s r e v o n o n r u tp y t0 % 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 nx a m5 75 70 5 10 5 10 5 2p - p v m e s i o n s m rp y t0 20 20 60 60 0 1s m r v m ) 4 ( t n e r r u c d a o l n i m x a m 5 0 0 1 t u o i % d e t a r ) 7 ( t o o h s r e v o t n e i s n a r t d a o lp y t5 . 2% ) 6 ( e m i t y r e v o c e r t n e i s n a r t d a o lp y t0 0 1c e s ) 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 p m a l c e g a t l o v r e v o p o o l n e p o p y t x a m 0 2 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 t0 2 1% n o i t c e t o r p t i u c r i c t r o h s t u p t u o v 5 2 . 0 = t u o v p y t x a m 0 4 1 0 5 1 % unless otherwise stated, these specifications apply for ambient temperature t a =23 2 c, nominal input voltage, and rated full load. (1)
&' ( ( n i pn o i t c n u f 1t u p n i - 2e s a c 3f f o / n o 4t u p n i + 5t u p t u o - 6e s n e s - 7m i r t 8e s n e s + 9t u p t u o +
a 50 watt he single series dc/dc converters 2401 stanwell drive concord, california 94520 ph: 925/687-4411 or 800/542-3355 fax: 925/687-3333 www.calex.com email: sales@calex.com 4 3/2001 notes: (1) refer to the calex application notes for the definition of terms, measurement circuits, and other information. (2) 33 f capacitor connected to two ? input ? pins. then place current sensor in series with 12 h inductor between 33 f and source. the reflected ripple current is measured over 5 hz to 20 mhz bandwidth. (3) refer to the calex application notes for information on fusing. (4) optimum performance is obtained when this power supply is operated within the minimum to maximum load specifications. no damage to module will occur, when the output is operated at less than minimum load, but the output voltage may contain a low frequency component that may exceed output noise specifications. (5) load regulation is defined as the output voltage change when changing load current from maximum to minimum. (6) load transient recovery time is defined as the time for the output to settle from a 50 to 75% step load change to a 1% error band (rise time of step = 2sec). (7) load transient overshoot is defined as the peak overshoot during a transient as defined in the note 6 above. (8) noise is measured per the calex application notes. output noise is measured with a 10f 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 on/off switch is used, such as open collector switch, logic high requires the switch to be high-impedance. switch leakage currents greater than 10 ua may be sufficient to trigger the on/off to the logic-low state. (10) most switches would be suitable for logic on/off control, in case there is a problem, you can make following estimations and then leave some margins. when open collector is used for logic high, ? open circuit voltage at on/off 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/ off pin ? , ? output resistance ? and ? low logic level ? are used to estimate the low impedance requirement of switch. (11) specifications subject to change without notice. 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 as 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 e p o n i p e v a e l r o x a m0 . 3c d v t n e r r u c e g a k a e l l a n r e t x e h g i h c i g o l r o f x a m0 1a 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 m0 5c 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 n i m0 . 1c d v r o f t n e r r u c g n i k n i s w o l c i g o l x a m0 0 5a ) 0 1 ( e g a t l o v t i u c r i c n e p o 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 3 . 2 5 . 1 c d v c d v e c n a t s i s e r t u p t u op y t3 m h o k t n e r r u c e l d i ) f f o s i e l u d o m ( p y t2 c d a m r o r r e % 1 o t e m i t n o - n r u tp y t0 2c e s m 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 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 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 s d a e l n o x a m5 . 0c d v r e d n u 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 p y t x a m 2 0 . 0 1 . 0 % r e d n u 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 p y t x a m 5 0 . 0 2 . 0 % 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 - 0 1 + f o % t u o v e c n a t s i s e r t u p n ip y t0 1m h o k e g a t l o v t i u c r i c n e p op y t5 . 2v 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 mp y t0 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 v 4 2 = m o n v v 8 4 = m o n v x a m x a m 0 0 7 0 0 5 1 c d v c d v e c n a t s i s e r t u p t u o o t t u p n ip y t0 1m h o m e c n a t i c a p a c t u p t u o o t t u p n ip y t0 0 4 2f p 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 1 6 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 e c n a d e p m i l a m r e h tp y t7 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 t h g i e w t i n up y t4 1 1 / 4g / z o n o i s n e m i d e s a c" 5 5 . 0 x " 8 2 . 2 x " 4 . 2 ) g n i d n e p ( s l a v o r p p a) v u t ( 0 5 9 0 6 n e , l u c , 0 5 9 1 l u t i k g n i t n u o m s i s s a h c0 2 s m * absolute maximum ratings. caution: stresses in excess of the absolute maximum ratings can cause permanent damage to the device (see note 1).
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