WDD20U SERIES DC - DC CONVERTER 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 3 YEARS W ARRANTY R H a U L 6 0 9 5 0 - 1 E N 6 0 9 5 0 - 1 MODEL LIST I N P U T C A P A C I T O R E F F . E F F . I N P U T O U T P U T O U T P U T O U T P U T C U R R E N T L O A D M O D E L N O . ( m i n . ) ( t y p . ) V O L T A G E W A T T A G E V O L T A G E C U R R E N T (m a x .) ( t y p . ) ( m a x . ) S i n g l e O u t p u t M o d e l s WDD20 - 03S1U 9~18 VDC 2 . 0 4 A 2 . 8 3 A 20 W A TTS +3.3 VDC 6000 mA 79% 81% 7000 F WDD20 - 05S1U 9~18 VDC 1 . 9 8 A 2 . 7 2 A 20 W A TTS + 5 VDC 4000 mA 83% 85% 7000 F 1000 F WDD20 - 12S1U 9~18 VDC 1 . 9 7 A 2 . 7 5 A 20 W A TTS + 12 VDC 1670 mA 82% 84% WDD20 - 15S1U 9~18 VDC 1 . 9 6 A 2 . 7 2 A 20 W A TTS + 15 VDC 1330 mA 83% 85% 470 F WDD20 - 03S2U 18~36 VDC 1 . 0 A 1 . 4 A 20 W A TTS +3.3 VDC 6000 mA 80% 82% 7000 F 7000 F WDD20 - 05S2U 18~36 VDC 0 . 9 7 A 1 . 4 A 20 W A TTS + 5 VDC 4000 mA 84% 86% WDD20 - 12S2U 18~36 VDC 0 . 9 6 A 1 . 3 2 A 20 W A TTS + 12 VDC 1670 mA 86% 88% 1000 F WDD20 - 15S2U 18~36 VDC 0 . 9 5 A 1 . 3 2 A 20 W A TTS + 15 VDC 1330 mA 87% 89% 470 F WDD20 - 03S3U 35~75 VDC 0 . 5 A 0 . 7 1 A 20 W A TTS +3.3 VDC 6000 mA 81% 83% 7000 F 7000 F WDD20 - 05S3U 35~75 VDC 0 . 4 9 A 0 . 7 1 A 20 W A TTS + 5 VDC 4000 mA 82% 84% WDD20 - 12S3U 35~75 VDC 0 . 4 8 A 0 . 7 A 20 W A TTS + 12 VDC 1670 mA 86% 88% 1000 F WDD20 - 15S3U 35~75 VDC 0 . 4 7 A 0 . 7 A 20 W A TTS + 15 VDC 1330 mA 87% 89% 470 F D u a l O u t p u t M o d e l s WDD20 - 05D1U 9~18 VDC 2 . 0 A 2 . 7 5 A 20 W A TTS 5 VDC 2000 mA 82% 84% 1000 F WDD20 - 12D1U 9~18 VDC 1 . 9 3 A 2 . 7 2 A 20 W A TTS 83% 85% 470 F 12 VDC 830 mA 470 F WDD20 - 15D1U 9~18 VDC 1 . 9 3 A 2 . 7 2 A 20 W A TTS 15 VDC 670 mA 84% 86% WDD20 - 05D2U 18~36 VDC 0 . 9 8 A 1 . 4 A 20 W A TTS 5 VDC 2000 mA 83% 85% 1000 F WDD20 - 12D2U 18~36 VDC 0 . 9 6 A 1 . 3 2 A 20 W A TTS 12 VDC 830 mA 86% 88% 470 F 470 F WDD20 - 15D2U 18~36 VDC 0 . 9 5 A 1 . 3 2 A 20 W A TTS 15 VDC 670 mA 87% 89% WDD20 - 05D3U 35~75 VDC 0 . 4 9 A 0 . 7 A 20 W A TTS 5 VDC 2000 mA 83% 85% 1000 F WDD20 - 12D3U 35~75 VDC 0 . 4 8 A 0 . 7 A 20 W A TTS 12 VDC 830 mA 86% 88% 470 F WDD20 - 15D3U 35~75 VDC 0 . 4 8 A 0 . 7 A 20 W A TTS 670 mA 87% 89% 470 F 15 VDC www .chinfa.com sales chinfa.com 2011.03.10 P1WDD20U SERIES SINGLE & DU AL OUTPUT S P E C I F I C A T I O N 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 GENERAL typ. Characteristics Conditions min. max. unit Switching frequency V i n o m , I o n o m 250 K H z Isolation voltage I n p u t - O u t p u t 1500 VDC I n p u t - O u t p u t , 5 0 0 V D C Isolation resistance 100 M Isolation capacitance 1 0 0 K H z / 1 V 1000 P F o Ambient temperature V i n o m , 3.3V & 5V output models -40 + 61 C o I o n o m 12V , 15V & dual output models -40 + 71 C o Case temperature O p e r a t i n g a t V i n o m , I o n o m +100 C Derating See derating curve V i n o m o Storage temperature N o n o p e r a t i o n a l -40 +100 C R elative humidity V i n o m , I o n o m 20 95 % RH o T emperature coefficient Vi nom, Io min % / C 0.02 Dimension L50.8 x W40.64 x H10.16 mm o B e 1 l c o r e i s s u e 6 4 0 C , G B MTBF 958000 Hours Cooling F ree air convection INPUT SPECIFICA TIONS typ. max. Characteristics Conditions min. unit Input voltage range T a m i n . . . T a m a x , I o n o m 9 12 18 VDC 18 24 36 VDC 35 48 75 VDC No load input current V i n o m , I o = 0 12V models 25 mA 24V models 20 mA 48V models 15 mA Input voltage w/o damage Io nom 12V models 20 VDC 24V models 40 VDC 80 VDC 48V models Startup voltage Io nom 12V models 8.5 VDC 24V models 16 VDC 48V models 33 VDC Input filter Pi type OUTPUT SPECIFICA TIONS typ. Characteristics Conditions min. max. unit Output voltage accuracy Vi nom, Io nom 2 % single output models Minimum load Vi nom 0 % dual output models (each output) 10 % Line regulation Io nom, Vi min ...Vi max 1 % Load regulation Vi nom, Io 0 ... Io nom, single output models % 2 Vi nom, Io min ... Io nom, dual output models % 5 Cross regulation (Dual model) Aymmetrical load 10% - 100% FL % 5 Startup time Vi nom, Io nom ms 30 T ransient recovery time Vi nom, 1~0.5 Io nom s 500 Ripple & noise Vi nom, Io nom, 3.3V & 5V models 100 mV B W = 20MHz 12V , 15V & dual 150 mV V oltage trim range 1) 3.3V model Vi nom 5 % 5V , 12V , 15V & dual 10 % Efficiency Vi nom, Io nom, P o / Pi Up to 89%, See model list and efficiency curve 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 . www .chinfa.com sales chinfa.com 2011.03.10 P2