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5 vdc wdd20 - 05d2u 18~36 vdc 20 w a tts 2000 ma 12 vdc 15 vdc wdd20 - 12d1u wdd20 - 15d1u 9~18 vdc 9~18 vdc 20 w a tts 20 w a tts 830 ma 670 ma 5 vdc wdd20 - 05d1u 9~18 vdc 20 w a tts 2000 ma 85% 85% 86% 83% 83% 83% 84% 81% 2 . 0 a 1 . 9 3 a 1 . 9 3 a 0 . 9 8 a 2 . 7 5 a 2 . 7 2 a 2 . 7 2 a 1 . 4 a 1000 f ? 470 f ? 470 f ? 1000 f ? wdd20 - 03s1u + 5 vdc + 12 vdc + 15 vdc wdd20 - 05s2u wdd20 - 12s2u wdd20 - 15s2u 18~36 vdc 18~36 vdc 18~36 vdc 20 w a tts 20 w a tts 20 w a tts 4000 ma 1670 ma 1330 ma +3.3 vdc wdd20 - 03s2u 18~36 vdc 20 w a tts 6000 ma +3.3 vdc 9~18 vdc 20 w a tts 6000 ma wdd20 - 05s1u 9~18 vdc 20 w a tts 4000 ma wdd20 - 12s1u 9~18 vdc 20 w a tts 1670 ma wdd20 - 15s1u 9~18 vdc 20 w a tts 1330 ma +3.3 vdc wdd20 - 03s3u 35~75 vdc 20 w a tts 6000 ma wdd20 - 05s3u 35~75 vdc 20 w a tts 4000 ma wdd20 - 12s3u 35~75 vdc 20 w a tts 1670 ma wdd20 - 15s3u 35~75 vdc 20 w a tts 1330 ma + 5 vdc + 12 vdc + 15 vdc + 5 vdc + 12 vdc + 15 vdc 85% 87% 87% 82% 81% 84% 84% 85% 83% 84% 88% 89% 80% 83% 85% 85% 79% 82% 82% 83% 81% 82% 86% 87% 2 . 0 4 a 1 . 9 8 a 1 . 9 7 a 1 . 9 6 a 1 . 0 a 0 . 5 a 0 . 9 7 a 0 . 4 9 a 0 . 9 6 a 0 . 4 8 a 0 . 9 5 a 0 . 4 7 a 2 . 8 3 a 2 . 7 2 a 2 . 7 5 a 2 . 7 2 a 1 . 4 a 0 . 7 1 a 1 . 3 2 a 0 . 7 1 a 1 . 3 2 a 0 . 7 a 0 . 7 a 7000 f ? 7000 f ? 1000 f ? 470 f ? 7000 f ? 7000 f ? 7000 f ? 7000 f ? 1000 f ? 470 f ? 1000 f ? 470 f ? 1 . 4 a + 5 vdc + 12 vdc + 15 vdc 20 w a tts 20 w a tts 20 w a tts 4000 ma 1670 ma 1330 ma +3.3 vdc 18~75 vdc 18~75 vdc 18~75 vdc 18~75 vdc 20 w a tts 6000 ma +3.3 vdc 9~36 vdc 9~36 vdc 9~36 vdc 9~36 vdc 20 w a tts 6000 ma 20 w a tts 4000 ma 20 w a tts 1670 ma 20 w a tts 1330 ma + 5 vdc + 12 vdc + 15 vdc 81% 84% 84% 79% 79% 80% 82% 83% 77% 79% 82% 82% 77% 78% 80% 81% 1 . 0 6 a 1 . 0 6 a 1 . 0 3 a 1 . 0 2 a 0 . 5 3 a 0 . 5 1 a 0 . 5 a 0 . 5 a 2 . 8 8 a 2 . 8 8 a 2 . 8 a 2 . 8 a 1 . 4 5 a 1 . 4 5 a 1 . 4 a 1 . 4 a 7000 f ? 3500 f ? 470 f ? 220 f ? 7000 f ? 3500 f ? wdd20 - 03s4u wdd20 - 05s4u wdd20 - 12s4u wdd20 - 15s4u wdd20 - 03s5u wdd20 - 05s5u wdd20 - 12s5u wdd20 - 15s5u 470 f ? 220 f ? m o d e l n o . i n p u t v o l t a g e o u t p u t w a t 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 e f f . ( m i n . ) e f f . ( t y p . ) c a p a c i t o r l o a d (m a x .) i n p u t c u r r e n t ( m a x . ) ( t y p . ) www .chinfa.com wdd20u series dc - dc converter 20w single & du al output fea tures ' efficiency up to 89% ' 2:1 & 4:1 wide input range ' i/o isola tion ' input pi fil ter ' short circuit protection ' high performance ' 3 years w arranty sales@chinfa.com model list s i n g l e o u t p u t m o d e l s h r u l 6 0 9 5 0 - 1 a e n 6 0 9 5 0 - 1 d u a l o u t p u t m o d e l s 2016.05.19 p1
12 vdc 15 vdc 18~36 vdc 18~36 vdc 20 w a tts 20 w a tts 830 ma 670 ma 12 vdc 15 vdc 35~75 vdc 35~75 vdc 20 w a tts 20 w a tts 830 ma 670 ma 5 vdc 35~75 vdc 20 w a tts 2000 ma 88% 89% 88% 89% 85% 86% 87% 86% 87% 83% 0 . 9 6 a 0 . 4 9 a 0 . 4 8 a 0 . 9 5 a 0 . 4 8 a 1 . 3 2 a 0 . 7 a 0 . 7 a 1 . 3 2 a 0 . 7 a 1000 f ? 470 f ? 470 f ? 470 f ? 470 f ? m o d e l n o . i n p u t v o l t a g e o u t p u t w a t 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 e f f . ( m i n . ) e f f . ( t y p . ) c a p a c i t o r l o a d (m a x .) i n p u t c u r r e n t ( m a x . ) ( t y p . ) model list wdd20u series single & du al output sales@chinfa.com www .chinfa.com d u a l o u t p u t m o d e l s 12 vdc 15 vdc 20 w a tts 20 w a tts 830 ma 670 ma 5 vdc 18~75 vdc 18~75 vdc 18~75 vdc 20 w a tts 2000 ma 12 vdc 15 vdc 20 w a tts 20 w a tts 830 ma 670 ma 5 vdc 9~36 vdc 9~36 vdc 9~36 vdc 20 w a tts 2000 ma 84% 84% 82% 83% 84% 80% 82% 82% 80% 81% 82% 78% 1 . 0 6 a 1 . 0 2 a 1 . 0 a 0 . 4 9 a 0 . 5 2 a 0 . 5 a 2 . 8 8 a 2 . 8 a 2 . 8 a 1 . 4 a 1 . 4 a 1 . 4 a 1000 f ? 470 f ? 470 f ? 1000 f ? 470 f ? 470 f ? wdd20 - 12d2u wdd20 - 15d2u wdd20 - 12d3u wdd20 - 15d3u wdd20 - 05d3u wdd20 - 05d4u wdd20 - 12d4u wdd20 - 15d4u wdd20 - 05d5u wdd20 - 12d5u wdd20 - 15d5u o a l l s p e c i f i c a t i o n s t y p i c a l a t n o m i n a l l i n e , f u l l l o a d , 2 5 c u n l e s s o t h e r w i s e n o t i c e d s p e c i f i c a t i o n 0.02 t emperature coefficient vi nom, io min mtbf o b e 1 l c o r e i s s u e 6 @ 4 0 c , g b r elative humidity v i n o m , i o n o m isolation capacitance 1 0 0 k h z / 1 v characteristics conditions typ. max. unit switching frequency isolation voltage isolation resistance ambient temperature case temperature v i n o m , i o n o m i n p u t - o u t p u t i n p u t - o u t p u t , @ 5 0 0 v d c v i n o m , i o n o m o p e r a t i n g a t v i n o m , i o n o m + 61 + 71 storage temperature n o n o p e r a t i o n a l +100 +100 1,000 min. 1,500 100 -40 -40 -40 250 20 95 hours % rh k h z vdc o c o c o c o c p f o % / c m ? 958,000 3.3v & 5v output models 12v , 15v & dual output models dimension l50.8 x w40.64 x h10.16 mm derating v i n o m see derating curve cooling f ree air convection startup voltage io nom characteristics conditions typ. max. unit input voltage range no load input current t a m i n . . . t a m a x , i o n o m v i n o m , i o = 0 min. 9 12 18 vdc vdc vdc vdc vdc 25 20 15 ma ma ma 18 35 9 18 24 48 24 48 36 75 36 75 12v 24v 48v general 2:1 4:1 input voltage w/o damage io nom 80 vdc vdc vdc 12v 24v 48v 20 40 vdc vdc vdc 12v 24v 48v 8.5 16 33 2:1 vdc vdc 24v 48v 8.5 16 4:1 input filter pi type input specifica tions 2016.05.19 p2
sales@chinfa.com wdd20u series single & du al output www .chinfa.com % t ransient recovery time 500 ? s vi nom, io nom, b w = 20mhz ripple & noise 5 v oltage trim range 1) vi nom 10 % % mv 3.3v 3.3v & 5v 5 100 150 mv 12v , 15v & dual 5v , 12v , 15v & dual cross regulation (dual model) startup time ms vi nom, io nom 30 aymmetrical load 10% - 100% fl vi nom, 1~0.5 io nom n o t e 1 : p l s r e f e r t o f i g 1 & t a b l e 1 f o r c o n n e c t i o n a n d r e s i s t a n c e r e c o m m e n d e d . o a l l s p e c i f i c a t i o n s t y p i c a l a t n o m i n a l l i n e , f u l l l o a d , 2 5 c u n l e s s o t h e r w i s e n o t i c e d s p e c i f i c a t i o n % % load regulation vi nom, io 0 ... io nom, single output models vi nom, io min ... io nom, dual output models 2 5 characteristics conditions min. unit output voltage accuracy vi nom, io nom typ. max. 2 % minimum load line regulation io nom, vi min ...vi max vi nom 0 10 % % % 1 single output models dual output models (each output) r emote on / off on : opened or 8 ~ 10vdc applied, reference to input gnd off : -0.3 ~ 2vdc applied, reference to input gnd input reversed shunt diode built in, external fuse recommended output short circuit current limited (auto -recovery) r ated over load protection 110%min....140%max vibration ul/cul tuv en 60950-1 ce en 61204-3, en 55022, class a, en 61000-4-2, en61000-4-3, en61000-4-4, en61000-4-6 appro v als and st and ard ul 60950-1 r ecognized control and protection meet iec 60068-2-6 (10-500 hz, 2g, along x, y , z each axis, 60 min for each axis) 2:1 models (12vin : 3a, 24vin : 1.5a, 48vin : 1a) 4:1 models ( 24vin : 3a, 48vin : 1.5a ) pin no . single vi+ vi - 2 4 7 8 6 du al vi+ vi - on / off com general t rim 5 1 v o + no pin v o - on / off v o + v o - t rim pin assignment mm [inch] mechanism & pin configura tion general tolerance 0.00[0.00] - 30.00[1.18] 30.00[1.18] - 120.00[4.72] 0.30[0.01] 0.50[0.02] 1 0 . 1 6 [ 0 . 4 ] d i a 1 . 0 0 [ 0 . 0 4 ] 6 . 0 0 [ 0 . 2 4 ] b o t t o m v i e w 1 2 1 7 . 7 8 [ 0 . 7 0 ] 5 . 0 8 [ 0 . 2 0 ] 4 5 . 7 2 [ 1 . 8 0 ] 1 0 . 1 6 [ 0 . 4 0 ] 1 0 . 1 6 [ 0 . 4 0 ] 2 . 5 4 [ 0 . 1 0 ] 4 5 6 7 8 1 0 . 1 6 [ 0 . 4 0 ] 5 . 0 8 [ 0 . 2 0 ] 1 0 . 1 6 [ 0 . 4 0 ] 4 0 . 6 4 [ 1 . 6 0 ] 5 0 . 8 0 [ 2 . 0 0 ] case size case material w eight 50.8 x 40.64 x 10.16 mm (2 x 1.6 x 0.4 inches) plastic base / metal case 60 g p otting material silicone physical chara cteristics efficiency vi nom, io nom, p o / pi up to 89%, see model list and efficiency curve output specifica tions 2016.05.19 p3
i n f / 2 k v m l c c 3 . 3 ? f / 1 0 0 v m l c c 3 . 3 ? f / 1 0 0 v m l c c i n f / 2 k v m l c c 1 ? f / 5 0 v m l c c 1 ? f / 5 0 v m l c c 1 . 5 m h c o m m o n c h o k e 0 . 5 m h c o m m o n c h o k e www .chinfa.com wdd20u series single & du al output sales@chinfa.com circuit schema tic recommended circuit ' r e c o m m e n d e d f i l t e r f o r e n 5 5 0 2 2 c l a s s b c o m p l i a n c e ' r e c o m m e n d e d e n 5 5 0 2 2 c l a s s b f i l t e r c i r c u i t l a y o u t . ' b l o c k d i a g r a m f o r w d d 2 0 u s e r i e s w i t h s i n g l e o u t p u t ' b l o c k d i a g r a m f o r w d d 2 0 u s e r i e s w i t h d u a l o u t p u t c o m v i + v i - v o - v o + s w i t c h i n g d e v i c e p w m c o n t r o l l e r o p t o - i s o l a t i o n r e f e r e n c e & e r r o r a m p . r e c t i f i e r r e c t i f i e r t r i m o n / o f f v o - v o + s w i t c h i n g d e v i c e o p t o - i s o l a t i o n r e f e r e n c e & e r r o r a m p . p w m c o n t r o l l e r v i + v i - r e c t i f i e r o n / o f f t r i m v o + v o - v i n + v i n - + - c 1 l 1 c 2 c 3 w d d 2 0 u 1 2 v , 1 5 v & d u a l 3 . 3 v & 5 v 0 1 0 0 o a m b i e n t t e m p e r a t u r e [ c ] 7 1 1 0 0 - 4 0 p o w e r o u t [ % ] t e m p e r a t u r e d e r a t i n g c u r v e 6 1 ' t h e c o m p o n e n t s u s e d i n t h e a b o v e f i g u r e , t o g e t h e r w i t h t h e m a n u f a c t u r e r p a r t n u m b e r s f o r t h e s e c o m p o n e n t s , a r e a s f o l l o w s . c 1 c 3 l 1 c 2 i n f / 2 k v m l c c i n f / 2 k v i n f / 2 k v m l c c m l c c w d d 2 0 - x x x 1 u w d d 2 0 - x x x 2 u w d d 2 0 - x x x 3 u 1 . 5 m h c o m m o n c h o k e 0 . 5 m h c o m m o n c h o k e 1 ? f / 5 0 v m l c c 1 ? f / 5 0 v m l c c 1 . 5 m h c o m m o n c h o k e 3 . 3 ? f / 5 0 v m l c c 3 . 3 ? f / 1 0 0 v m l c c 3 . 3 ? f / 5 0 v m l c c 3 . 3 ? f / 1 0 0 v m l c c w d d 2 0 - x x x 4 u w d d 2 0 - x x x 5 u s a f e o p e r a t i n g a r e a dera ting curve 2016.05.19 p4
sales@chinfa.com wdd20u series www .chinfa.com single & du al output efficiency curve fig. 1 t rim connection ( for single output ) 6 7 8 vo + t r i m vo - r e x t 1 6 7 8 vo + t r i m vo - r e x t 2 i n p u t v o l t a g e ( v ) e f f i c i e n c y [ % ] e f f i c i e n c y v s i n p u t v o l t a g e 8 4 8 3 8 2 8 1 2 0 2 2 2 4 2 6 2 8 3 0 3 2 3 4 3 6 1 8 w d d 2 0 - 0 5 s 2 u o u t p u t l o a d ( % ) e f f i c i e n c y [ % ] e f f i c i e n c y v s o u t p u t l o a d 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0 1 0 w d d 2 0 - 0 5 s 2 u i o : f u l l l o a d v i : 2 4 v d c 8 0 8 5 8 0 7 5 7 0 6 5 6 0 9 0 ( for dual output ) 5 8 vo + t r i m 7 vo - r e x t 1 6 c o m 5 8 vo + t r i m 7 vo - r e x t 2 6 c o m 8 5 t able 1 t ypical resistor values for various output voltage adjustment settings t ype r e xt 1 r e xt 2 wdd20-03sxu wdd20-05sxu wdd20-12sxu wdd20-15sxu wdd20-05dxu wdd20-12dxu wdd20-15dxu v o nom -2.5% v o nom -5% v o nom +2.5% v o nom +5% 8 2 0 ? 3 . 9 k ? 1 3 0 k ? 1 3 0 k ? 3 3 k ? 1 2 0 k ? 1 8 0 k ? t ype v o nom -5% v o nom -10% v o nom +5% v o nom +10% 0 ? 1 8 k ? 2 0 k ? 1 2 k ? 5 6 k ? 7 5 k ? 0 ? 4.7k ? 10k ? 20k ? 10k ? 12k ? 10k ? 7.5k ? 0 ? 1k ? 3.9k ? 3k ? 2k ? 1.2k ? 3k ? i n p u t v o l t a g e ( v ) e f f i c i e n c y [ % ] e f f i c i e n c y v s i n p u t v o l t a g e 8 5 8 0 7 5 7 0 1 2 1 5 1 8 2 1 2 4 2 7 3 0 3 3 3 6 9 w d d 2 0 - 0 5 s 4 u o u t p u t l o a d ( % ) e f f i c i e n c y [ % ] e f f i c i e n c y v s o u t p u t l o a d 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0 1 0 w d d 2 0 - 0 5 s 4 u i o : f u l l l o a d v i : 2 4 v d c 6 5 8 5 8 0 7 5 7 0 6 5 6 0 9 0 9 0 2016.05.19 p5

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