a 1 8.5 watt uw triple series dc/dc converters calex faxfacts: 129 1997 http://www.calex.com 2401 stanwell drive concord, ca 94520-4841 (510) 687-4411 ? fax (510) 687-3333 1 2 8 6 4 3 5 +5 output cmn + output - output +input -input on/off thermal shutdown lc input filter pwm control feedback amplifier shielded isolation transformer six-sided shielded copper case 1.5 meg || 0.1f 1000 f 100 f 100 f 7 +5 cmn features n wide 4:1 input voltage range (9-36 or 18-72vdc) n triple low noise, highly regulated outputs n efficiency 70% for all line conditions n no derating to 80c case temperature n six-sided shielded low thermal gradient copper case n 500 vdc minimum input to output isolation n overvoltage protected outputs n pulse by pulse digital current limiting n five year warranty 8.5 watt uw triple series block diagram description the 8.5 watt triple output dc/dc converters are ideal for wide (4:1) input range applications. these units are particularly well suited for solar powered rtus and instruments. they are designed with a high accuracy feedback control circuit and coupled inductor magnetics. each converter has both a logic shut down pin and thermal overload protection circuitry. all outputs and the power switch are overvoltage protected. these converters are encased in a six-sided, completely shielded copper case. the uw triple series is covered under the calex 5 year warranty. 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 s t u p t u o c d v s t u p t u o a m n i mx a m w u 2 1 . 5 t 2 10 0 . 90 0 . 6 32 1 , 55 8 1 , 0 0 8 w u 5 1 . 5 t 2 10 0 . 90 0 . 6 35 1 , 50 5 1 , 0 0 8 w u 2 1 . 5 t 8 40 0 . 8 10 0 . 2 72 1 , 55 8 1 , 0 0 8 w u 5 1 . 5 t 8 40 0 . 8 10 0 . 2 75 1 , 50 5 1 , 0 0 8
a 2 8.5 watt uw triple series dc/dc converters calex faxfacts: 129 1997 http://www.calex.com 2401 stanwell drive concord, ca 94520-4841 (510) 687-4411 ? fax (510) 687-3333 (7) the input ripple rejection is specified for dc to 120hz ripple with a modulation amplitude of 1% vin. (8) for module protection only, see also note 2. (9) the logic shutdown pin is open collector ttl, cmos, and relay compatible. the input to this pin is referenced to input minus. (10) the functional temperature range is intended to give an additional data point for use in evaluating this power supply. at the low functional temperature the power supply will function with no side effects, however, sustained operation at the high functional temperature will reduce expected operational life. the data sheet specifications are not guaranteed over the functional temperature range. (11) the case thermal impedance is specified as the case temperature rise over ambient per package watt dissipated. notes: * all parameters measured at tc=25c, nominal input voltage and full rated load unless otherwise noted. refer to the calex application notes for the definition of terms, measurement circuits and other information. (2) determine the correct fuse size by calculating the maximum dc current drain at low line input, maximum load and then adding 20 to 25 percent. (3) the module will not be damaged if run at less than minimum load. regulation can degrade with less than minium load or substatial load imbalance. (4) short term stability is specified after a 30 minute warm-up at full load, and with constant line, load and ambient conditions. (5) the transient response is specified as the time required to settle from 25 to 75% step load change (rise time of step = 2 sec.) to a 1% error band. (6) dynamic response is the peak overshoot voltage during the transient response time defined in note 5 above. * s r e t e m a r a p t u p n i l e d o mw u 2 1 . 5 t 2 1w u 5 1 . 5 t 2 1w u 2 1 . 5 t 8 4w u 5 1 . 5 t 8 4s t i n u e g n a r e g a t l o v n i m x a m 0 0 . 9 0 0 . 6 3 0 0 . 8 1 0 0 . 2 7 c d v w b z h m 0 2 - 0 , e l p p i r d e t c e l f e r p y t x a m 0 3 0 6 p - p a m d a o l l l u f t n e r r u c t u p n i d a o l o n p y t p y t 8 0 9 9 1 8 0 9 9 1 0 3 2 5 1 0 3 2 5 1 a m y c n e i c i f f ep y t8 7% y c n e u q e r f g n i h c t i w sp y t5 5z h k s m 0 0 1 , e g a t l o v r e v o t u p n i m u m i x a m e g a m a d o n x a m5 45 8c d v r o r r e t u p t u o % 1 , e m i t n o - n r u tp y t0 2 1s m e s u f d e d n e m m o c e r ) 2 ( * s r e t e m a r a p t u p t u o l e d o m w u 2 1 . 5 t 2 1 w u 5 1 . 5 t 2 1 w u 2 1 . 5 t 8 4 w u 5 1 . 5 t 8 4 w u 2 1 . 5 t 2 1 w u 2 1 . 5 t 8 4 w u 5 1 . 5 t 2 1 w u 5 1 . 5 t 8 4 s t i n u e g a t l o v t u p t u o52 1 5 1 c d v ) 3 ( t n e r r u c d e t a r n i m x a m 0 0 2 0 0 8 0 5 5 8 1 0 5 0 5 1 a m e g n a r e g a t l o v d a o l % 0 0 1 n i m p y t x a m 0 9 . 4 0 0 . 5 0 1 . 5 6 7 . 1 1 0 0 . 2 1 4 2 . 2 1 5 5 . 4 1 0 0 . 5 1 5 4 . 5 1 c d v d a o l x a m - n i m n o i t a l u g e r d a o l p y t x a m 0 . 2 5 . 3 0 . 2 0 . 3 0 . 2 0 . 3 % n o i t a l u g e r e n i l c d v x a m - n i m = n i v p y t x a m 5 . 0 5 . 1 5 . 0 0 . 1 5 . 0 0 . 1 % ) 4 ( y t i l i b a t s m r e t t r o h sp y t2 0 . 0% y t i l i b a t s m r e t g n o lp y t2 . 0s r h k / % ) 5 ( e s n o p s e r t n e i s n a r tp y t0 4s ) 6 ( e s n o p s e r c i m a n y dp y t5 70 70 5k a e p v m ) 7 ( n o i t c e j e r e l p p i r t u p n ip y t5 3b d w b z h m 0 2 - 0 , e s i o n p y t x a m 0 2 0 5 p - p v m 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 0 2 1 0 0 2 c / m p p ) 8 ( p m a l c e g a t l o v r e v o- p y t o 8 . 6 0 . 5 10 . 8 1c d v o t n o i t c e t o r p t i u c r i c t r o h s s t u p t u o l l a r o f n o m m o c d a o l r e v o l a m r e h t d n a t i m i l t n e r r u c m u m i n i m s r u o h 8 , s u o u n i t n o c
a 3 8.5 watt uw triple series dc/dc converters calex faxfacts: 129 1997 http://www.calex.com 2401 stanwell drive concord, ca 94520-4841 (510) 687-4411 ? fax (510) 687-3333 n i pn o i t c n u f 1t u p n i + 2t u p n i - 3t u p t u o 5 1 + / 2 1 + 4] 1 [ n m c t u p t u o 5t u p t u o 5 1 - / 2 1 - 6t u p t u o 5 + 7] 1 [ n m c 5 + 8f f o / n o . y l l a n r e t n i d e t c e n n o c e r a 7 & 4 s n i p : e t o n ] 1 [ curves applicable to both 12 and 15 vdc typical performance (tc=25c, full rated load). mechanical tolerances unless otherwise noted: x.xx dimensions: 0.020 inches x.xxx dimensions: 0.005 inches seal around terminals is not hermetic. do not immerse units in any liquid. bottom view side view * 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 ) 9 ( n w o d t u h s c i g o l l e v e l c i g o l n o n e p o n i p e v a e l r o n i m4 . 2c d v l e v e l c i g o l f f ox a m2 . 1c d v e c n a t s i s e r t u p n ip y t0 1s m h o k , t n e r r u c e l d i r e t r e v n o c w o l n i p n w o d t u h s p y t0 . 6a m n o i t a l o s i e g a t l o v n o i t a l o s i e g a k a e l a 0 1 t u p t u o - t u p n i n i m0 0 5c d v t u p t u o o t t u p n i e c n a t i c a p a c p y t0 9 1f p l a t n e m n o r i v n e e g n a r g n i t a r e p o e s a c g n i t a r e d o n n i m x a m 5 2 - 0 8 c ) 0 1 ( e g n a r l a n o i t c n u f e s a c n i m x a m 0 4 - 0 9 c e g n a r e g a r o t s n i m x a m 5 5 - 0 0 1 c ) 1 1 ( e c n a d e p m i l a m r e h tp y t4 . 4t t a 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 s a c p y t0 9c l a r e n e g t h g i e w t i n up y t0 . 7z o t i k g n i t n u o m9 s m 5 10152025303540 line input (volts) 65 70 75 80 efficiency (%) 12t5.15uw efficiency vs. line input 50% full load 100% full load 10 20 30 40 50 60 70 80 line input (volts) 65 70 75 80 85 efficiency (%) 48t5.15uw efficiency vs. line input 50% full load 100% full load 20 40 60 80 100 load (%) 60 65 70 75 80 85 efficiency (%) 12t5.15uw efficiency vs. load line = 9vdc line = 12vdc line = 36vdc
a 4 8.5 watt uw triple series dc/dc converters calex faxfacts: 129 1997 http://www.calex.com 2401 stanwell drive concord, ca 94520-4841 (510) 687-4411 ? fax (510) 687-3333 30 40 50 60 70 80 90 100 -15 volt load (%) -1.0 -0.8 -0.6 -0.4 -0.2 -0.0 0.2 0.4 normalized output voltage (%) -15 volt output* cross regulation vs. percent of full load +5 full load +5 min load +15 full load +15 full load 0 1020304050607080 line input (volts) 0.0 0.2 0.4 0.6 0.8 input current (amps) 48t input current vs. line input voltage 50% full load 100% full load 30 40 50 60 70 80 90 100 +15 volt load (%) -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 normalized output voltage (%) +15 volt output* cross regulation vs. percent of full load +5 full load -15 full load +5 full load -15 min load +5 min load -15 full load +5 min load -15 min load 5 10152025303540 line input (volts) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 input current (amps) 12t input current vs. line input voltage 50% full load 100% full load 20 40 60 80 100 load (%) 55 60 65 70 75 80 85 efficiency (%) 48t5.15uw efficiency vs. load line = 18vdc line = 48vdc line = 72vdc typical performance (tc=25c, full rated load). curves applicable to both 12 and 15 vdc 20 30 40 50 60 70 80 90 100 5 volt load (%) -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 normalized output voltage (%) +5 volt output* cross regulation vs. percent of full load +\-15 full load +\-15 min load
a 5 8.5 watt uw triple series dc/dc converters calex faxfacts: 129 1997 http://www.calex.com 2401 stanwell drive concord, ca 94520-4841 (510) 687-4411 ? fax (510) 687-3333 -30 -20 -10 0 10 20 30 40 50 60 70 80 case temperature (deg c) -0.6 -0.4 -0.2 0.0 0.2 0.4 normalized output (%) output voltage vs. case temperature +/-15 output +5 output 10 20 30 40 50 60 70 80 line input (volts) 6 7 8 9 10 11 input current (mamps) 48t idle current vs. line input 5 10152025303540 line input (volts) 6 8 10 12 14 16 input current (mamps) 12t idle current vs. line input typical performance (tc=25c, full rated load). curves applicable to both 12 and 15 vdc
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