b-37 the 300wfs series 3 watts power modules are high efficiency, surface mount dc-dc converters that operate over a wide input voltage range of 9 - 18 vdc, 18 - 36 vdc and 36 - 75 vdc and provide precisely regulated output voltages of 3.3v, 5v, 12v, 15v , 5v, 12v and 15v. the -40 o c to +71 o c operating temperature range makes it ideal for data communication equipment, mobile battery driven equipment, distributed power systems, telecommunication equipment, mixed analog/digital subsystems, process/ machine control equipment, computer peripheral systems and industrial robot systems. d d e e s s c c r r i i p p t t i i o o n n s s 300wfs series ? ? s s m m t t p p a a c c k k a a g g e e ? ? u u p p t t o o 8 8 3 3 % % e e f f f f i i c c i i e e n n c c y y ? ? s s i i n n g g l l e e & & d d u u a a l l o o u u t t p p u u t t , , 3 3 w w a a t t t t c c o o n n v v e e r r t t e e r r ? ? 2 2 - - 1 1 i i n n p p u u t t r r a a n n g g e e ? ? 1 1 5 5 0 0 0 0 v v d d c c i i n n p p u u t t / / o o u u t t p p u u t t i i s s o o l l a a t t i i o o n n ? ? s s h h o o r r t t c c i i r r c c u u i i t t p p r r o o t t e e c c t t i i o o n n ? ? m m t t b b f f > > 1 1 , , 0 0 0 0 0 0 , , 0 0 0 0 0 0 h h o o u u r r s s f f e e a a t t u u r r e e s s www.martekpower.com o o u u t t p p u u t t c c h h a a r r a a c c t t e e r r i i s s t t i i c c s s unit/comments output voltage set point % output voltage at nominal line & fl output voltage balance % equal output (duals) loads line regulation % output voltage measured from min. input line to maximum load regulation % output voltage measured from fl to 10% load ripple/noise mv p-p, nom.line @fl, 20mhz b.w., using 1 f bypass capacitor ripple/noise mv p-p, over line, load & temp., 20 mhz b.w., using 1 f bypass capacitor short circuit protection continuous, automatic recovery transient response deviation % deviation of vout for a 25% load change over power protection % transient recovery time s for 25% load change temperature coefficient % per degree c min 120 typ 0.5 0.5 0.1 0.3 50 2 200 0.01 max 1.0 2.0 0.3 1.0 75 100 6 500 0.02 single & dual output dc/dc converter g g e e n n e e r r a a l l c c h h a a r r a a c c t t e e r r i i s s t t i i c c s s unit/comments switching frequency khz isolation voltage vdc, 1 minute isolation resistance mohm, 500vdc isolation capacitance pf, 100khz, 1volt mtbf (mil-hbk-217f) million hours, +25 o c, ground benign min 1500 1000 1 typ 300 65 max 100 i i n n p p u u t t c c h h a a r r a a c c t t e e r r i i s s t t i i c c s s unit/comments start voltage 12 vdc input models vdc 24 vdc input models vdc 48 vdc input models vdc input fuse requirements 12 vdc input models ma; slow blow type 24 vdc input models ma; slow blow type 48 vdc input models ma; slow blow type reverse polarity input current a short circuit input power mw input filter pi filter min 9 18 36 typ 12 24 48 750 350 200 max 18 36 72 0.5 1500 new a a p p p p r r o o v v e e d d f f o o r r n n e e w w d d e e s s i i g g n n s s martek power reserves the right to change specifications without notice.
b-38 e e n n v v i i r r o o n n m m e e n n t t a a l l s s p p e e c c i i f f i i c c a a t t i i o o n n s s o o u u t t l l i i n n e e d d r r a a w w i i n n g g all specifications are typical at nominal input, nominal load and 25 c unless otherwise specified. external, low esr, 10 microfarad (minimum) capacitor across input is recommended for operation. p p i i n n o o u u t t c c h h a a r r t t p p h h y y s s i i c c a a l l c c h h a a r r a a c c t t e e r r i i s s t t i i c c s s unit/comments 1.27 x 0.74 x 0.4 inches (32.3 x 18.8x 10.2 mm) non-conductive black plastic ul94v-0 8.8 grams max. notes: 1. unless otherwise specified dimensions are in inches (mm). tolerances inches mm x.xx = 0.02 x.x = 0.5 x.xxx= 0.010 x.xx = 0.25 pin : 0.002 0.05 0. 15 0.702 (17.82) 0.58(14.8) side view top view 1 2 3 10 11 12 case size case material flammability weight unit/comments o c; ambient o c; case o c % humidity; non- condensing free-air convection operating temp. range operating temp. range storage temp. range relative humidity cooling min -40 -40 -40 typ max +71 +90 +125 95 nc = no connection 0.100 (2.54) 1.27 (32.3) 0.09 (2.2) 24 23 22 15 14 13 0.63 (16.1) 0.74 (18.8) 0.40 (10.2) 0.20 (0.5) 0.020 (0.5) pins 1 2 3 10 11 12 13 14 15 22 23 24 single - vin - vin nc nc nc nc + vout nc - vout nc +vin + vin dual -vin -vin nc common nc - vout + vout nc common nc + vin +vin
b-39 h h o o w w t t o o o o r r d d e e r r 3 xx s xx wfs output voltage series h h o o w w t t o o o o r r d d e e r r m m o o d d e e l l s s e e l l e e c c t t i i o o n n c c h h a a r r t t model nominal input voltage (vdc) input voltage range (vdc) output voltage (vdc) full load output current (ma) input current no load typ. (ma) efficiency @fl (%) output configuration (s=single, d=dual) wattage nominal input range 303s12wfs 305s12wfs 312s12wfs 315s12wfs 305D12WFS 312d12wfs 315d15wfs 303s24wfs 305s24wfs 312s24wfs 315s24wfr 305d24wfs 312d24wfs 315d24wfs 303s48wfs 305s48wfs 312s48wfs 315s48wfs 305d48wfs 312d48wfs 315d48wfs 12 12 12 12 12 12 12 24 24 24 24 24 24 24 48 48 48 48 48 48 48 9 - 18 9 - 18 9 - 18 9 - 18 9 - 18 9 - 18 9 - 18 18 - 36 18 - 36 18 - 36 18 - 36 18 - 36 18 - 36 18 - 36 36 - 72 36 - 72 36 - 72 36 - 72 36 - 72 36 - 72 36 - 72 3.3 5.0 12.0 15.0 5.0 12.0 15.0 3.3 5.0 12.0 15.0 5.0 12.0 15.0 3.3 5.0 12.0 15.0 5.0 12.0 15.0 700 600 250 200 300 125 100 700 600 250 200 300 125 100 700 600 250 200 300 125 100 20 20 20 20 20 20 20 5 5 5 5 5 5 5 3 3 3 3 3 3 3 75 79 82 82 78 81 81 76 80 83 83 79 82 82 76 80 83 83 79 82 82
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