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AD71206 DSD1792A IRG4BC 93C66 000M1 M48T58Y IONAL 2SD1775A
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  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 ( t y p . ) model list www .chinfa.com wdd20 series dc - dc converter 15 ~ 20w single & du al output fea tures ' efficiency up to 89% ' 2:1 wide input range ' i/o isola tion ' input pi fil ter ' short circuit protection ' high performance ' 2 years w arranty wdd20 - 12d1 wdd20 - 15d1 wdd20 - 12d2 wdd20 - 15d2 wdd20 - 12d3 wdd20 - 15d3 sales@chinfa.com 2010.02.09 d u a l o u t p u t m o d e l s s i n g l e o u t p u t m o d e l s 85% 87% 87% 87% 88% 89% 80% 83% 86% 87% 80% 80% 85% 85% 86% 87% 88% 88% wdd20 - 03s1 wdd20 - 05s1 wdd20 - 12s1 wdd20 - 15s1 wdd20 - 03s2 wdd20 - 05s2 wdd20 - 12s2 wdd20 - 15s2 wdd20 - 03s3 wdd20 - 05s3 wdd20 - 12s3 wdd20 - 15s3 9~18 vdc 9~18 vdc 9~18 vdc 9~18 vdc 18~36 vdc 18~36 vdc 18~36 vdc 18~36 vdc 36~72 vdc 36~72 vdc 36~72 vdc 36~72 vdc 9~18 vdc 9~18 vdc 18~36 vdc 18~36 vdc 36~72 vdc 36~72 vdc 15 w a tts 20 w a tts 20 w a tts 20 w a tts 15 w a tts 20 w a tts 20 w a tts 20 w a tts 15 w a tts 20 w a tts 20 w a tts 20 w a tts 20 w a tts 20 w a tts 20 w a tts 20 w a tts 20 w a tts 20 w a tts 12 vdc 15 vdc +3.3 vdc + 5 vdc + 12 vdc + 15 vdc +3.3 vdc + 5 vdc + 12 vdc + 15 vdc 12 vdc 15 vdc +3.3 vdc + 5 vdc + 12 vdc + 15 vdc 12 vdc 15 vdc 4500 ma 4000 ma 1670 ma 1330 ma 4500 ma 4000 ma 1670 ma 1330 ma 4500 ma 4000 ma 1670 ma 1330 ma 830 ma 670 ma 830 ma 670 ma 830 ma 670 ma 77% 81% 84% 85% 78% 83% 84% 86% 78% 83% 85% 86% 83% 85% 85% 86% 85% 87% o/ o n f f 2 . 0 a 1 . 9 5 a 0 . 9 7 a 0 . 4 8 a 0 . 9 6 a 0 . 4 8 a 1 . 6 a 2 . 0 a 2 . 0 a 1 . 9 5 a 0 . 7 8 a 0 . 3 9 a 0 . 5 a 1 . 0 a 1 . 0 a 0 . 4 9 a 0 . 9 6 a 0 . 4 8 a 7000 f ? 7000 f 1000 f ? ? 470 f ? 7000 f ? 7000 f ? 7000 f 1000 f ? ? 7000 f ? 470 f 470 f 470 f 470 f 470 f 470 f ? ? ? ? ? ? 470 f ? 1000 f ? 470 f ? 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 isolation capacitance 1 0 0 k h z / 1 v characteristics conditions typ. max. unit switching frequency isolation voltage isolation resistance 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 1000 min. 1500 100 180 k h z vdc p f m ? general p1
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 (12vin : 3a, 24vin : 1.5a, 48vin : 1a) output short circuit current limited (auto -recovery) r ated over load protection 110%min....140%max sales@chinfa.com wdd20 series single & du al output www .chinfa.com 2010.02.09 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 % % % load regulation t ransient recovery time vi nom, io 0 ... io nom, single output models 500 % % ? s 1 single output models dual output models (each output) vi nom, io min ... io nom, dual output models vi nom, io nom, b w = 20mhz ripple & noise 2 5 5 v oltage trim range 1) vi nom 10 % % mv 3.3v model 3.3v & 5v models 5 100 150 mv 12v , 15v & dual 5v , 12v , 15v & dual cross regulation (dual model) % input voltage w/o damage 75 vdc vdc vdc io nom 12v models 24v models 48v models 20 40 33 16 startup voltage vdc vdc vdc io nom 12v models 24v models 48v models 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 20 15 10 ma ma ma 18 36 24 48 36 72 12v models 24v models 48v models 8.5 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 characteristics conditions typ. max. unit ambient temperature case temperature 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 min. -25 -25 -40 20 95 hours % rh o c o c o c o c o % / c 950000 3.3v & 5v output models 12v , 15v & dual output models startup time ms vi nom, io nom 30 aymmetrical load 10% - 100% fl dimension l50.8 x w40.64 x h10.16 mm derating v i n o m see derating curve cooling f ree air convection general vi nom, 1~0.5 io nom efficiency vi nom, io nom, p o / pi up to 89%, see model list and efficiency curve input filter pi type output specifica tions input specifica tions control and protection 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 . p2
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 www .chinfa.com wdd20 series single & du al output sales@chinfa.com 2010.02.09 physical chara cteristics ' b l o c k d i a g r a m f o r w d d 2 0 s e r i e s w i t h s i n g l e o u t p u t 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 case size case material w eight 50.8 x 40.64 x 10.16 mm (2 x 1.6 x 0.4 inches) base / case plastic metal 60 g p atting material epoxy mm [inch] mechanism & pin configura tion 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 circuit schema tic recommended circuit ' b l o c k d i a g r a m f o r w d d 2 0 s e r i e s w i t h d u a l o u t p u t ' 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 . ' t h e c o m 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 w d d 2 0 - x x x 2 w d d 2 0 - x x x 3 1 . 5 m h c o m m o n c h o k e 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 3 . 5 m h c o m m o n c h o k e 1 . 5 m h v o + v o - v i n + v i n - + - c 1 l 1 c 2 c 3 w d d 2 0 3 . 3 ? f / 1 0 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 / 5 0 v m l c c p3 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 ] 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] 5 0 . 8 0 [ 2 . 0 0 ]
sales@chinfa.com wdd20 series single & du al output www .chinfa.com 2010.02.09 1 2 v , 1 5 v & d u a l 3 . 3 v & 5 v dera ting and efficiency curve n a t u r a l c o n v e c t i o n c o o l i n g 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 - 2 5 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 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 7 8 6 8 5 8 4 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 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 i o : f u l l l o a d v i : 2 4 v d c 8 3 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 8 t able 1 t ypical resistor values for various output voltage adjustment settings t ype r e xt 1 r e xt 2 wdd20-03sx wdd20-05sx wdd20-12sx wdd20-15sx wdd20-12dx wdd20-15dx v o nom -2.5% v o nom -5% v o nom +2.5% v o nom +5% 1 k ? 4 . 7 k ? 3 0 k ? 1 5 0 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% 1 0 0 ? 2 0 k ? 5 6 k ? 5 6 k ? 7 5 k ? 0 ? 4.7k ? 10k ? 15k ? 12k ? 10k ? 10k ? 470 ? 2k ? 3k ? 2k ? 1.2k ? 4.7k ? p4


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