WDD20U SERIES DC - DC CONVERTER 20W SINGLE & DUAL OUTPUT FEATURES LOW COST 2:1 WIDE INPUT RANGE I/O ISOLATION INPUT Pi FILTER SHORT CIRCUIT PROTECTION HIGH PERFORMANCE 2 YEARS WARRANTY MODEL LIST OUTPUT CURRENT EFF. (typ.) EFF. (min.) +3.3 VDC 6000 mA 82% 80% + 5 VDC + 12 VDC 4000 mA 1670 mA 85% 86% 83% 84% + 15 VDC +3.3 VDC 1330 mA 6000 mA 86% 83% 84% 81% 20 WATTS + 5 VDC 4000 mA 87% 85% 18~36 VDC 20 WATTS + 12 VDC 1670 mA 88% 86% WDD20 - 15S2U 18~36 VDC 20 WATTS + 15 VDC 1330 mA 89% 87% WDD20 - 03S3U 35~75 VDC 20 WATTS 6000 mA 83% 81% WDD20 - 05S3U WDD20 - 12S3U WDD20 - 15S3U 35~75 VDC 35~75 VDC 35~75 VDC 20 WATTS 20 WATTS 20 WATTS +3.3 VDC + 5 VDC 4000 mA 1670 mA 1330 mA 87% 89% 89% 85% 87% 87% MODEL NO. INPUT VOLTAGE WDD20 - 03S1U 9~18 VDC 20 WATTS WDD20 - 05S1U WDD20 - 12S1U 9~18 VDC 9~18 VDC 20 WATTS 20 WATTS WDD20 - 15S1U WDD20 - 03S2U 9~18 VDC 18~36 VDC 20 WATTS 20 WATTS WDD20 - 05S2U 18~36 VDC WDD20 - 12S2U OUTPUT OUTPUT WATTAGE VOLTAGE Single Output Models + 12 VDC + 15 VDC Dual Output Models WDD20 - 05D1U 9~18 VDC 20 WATTS 5 VDC 2000 mA 84% 82% WDD20 - 12D1U 9~18 VDC 20 WATTS 12 VDC 830 mA 87% 85% WDD20 - 15D1U 9~18 VDC 20 WATTS 15 VDC 670 mA 88% 86% WDD20 - 05D2U 18~36 VDC 20 WATTS 5 VDC 2000 mA 86% 84% WDD20 - 12D2U 18~36 VDC 20 WATTS 12 VDC 830 mA 88% 86% WDD20 - 15D2U WDD20 - 05D3U 18~36 VDC 35~75 VDC 20 WATTS 20 WATTS 15 VDC 5 VDC 670 mA 2000 mA 89% 86% 87% 84% WDD20 - 12D3U 35~75 VDC 20 WATTS 12 VDC 830 mA 88% 86% WDD20 - 15D3U 35~75 VDC 20 WATTS 15 VDC 670 mA 89% 87% www.chinfa.com 2008.09.23 [email protected] WDD20U SERIES SINGLE & DUAL OUTPUT CIRCUIT SCHEMATIC Block diagram for WDD20U series with single output Vo + Vi + Switching Device Rectifier Vo - Vi PWM Controller Opto Isolation Reference & Error Amp. Trim ON / OFF Block diagram for WDD20U series with dual output Vo + Vi + Rectifier com Switching Device Rectifier Vo - Vi - PWM Controller Opto Isolation Reference & Error Amp. Trim ON / OFF www.chinfa.com 2008.09.23 [email protected] WDD20U SERIES SINGLE & DUAL OUTPUT SPECIFICATION o All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed GENERAL Characteristics Conditions min. typ. max. 250 unit Switching frequency Vi nom, Io nom Isolation voltage Input / Output Isolation resistance Input / Output, @ 500VDC 100 Ambient temperature Vi nom, Io nom 3.3V & 5V output models -40 + 60 o 12V, 15V & dual output models -40 + 71 o + 100 o KHz 1,500 Case temperature Operating at Vi nom, Io nom Derating Vi nom Storage temperature Non operational Dimension L40.6 x W50.8 x H10.2 Cooling Free air convection Case material Metal VDC M C C C % / oC See derating curve -40 o + 100 C mm max. unit INPUT SPECIFICATIONS Characteristics Input voltage range No load input current Input voltage w/o damage Conditions Ta min ... Ta max, Io nom Vi nom, Io = 0 Io nom min. typ. 12 18 48 24 36 VDC 35 48 75 VDC 12V models 30 24V models 20 48V models 15 mA 12V models 20 24V models 40 Input filter Io nom VDC 80 48V models Startup voltage VDC 9 18 12V models 8.5 VDC 24V models 16 VDC 48V models 33 VDC Pi type OUTPUT SPECIFICATIONS Characteristics Conditions Output voltage accuracy Vi nom, Io nom Minimum load Vi nom min. typ. max. 2 single output models dual output models (each output) unit % 0 % 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 % Transient recovery time Vi nom, Io 0 ...1/2 Io nom S 500 o Temperature coefficient Vi nom, Io nom 0.02 % / C Ripple & noise Vi nom, Io nom, 3.3V & 5V output models 100 mV BW = 20MHz 12V, 15V & dual 150 mV Vi nom 3.3V output models Voltage trim range 5V, 12V, 15V & dual Efficiency www.chinfa.com 2008.09.23 Vi nom, Io nom, Po / Pi 5 % 10 % Up to 89%, See model list [email protected] WDD20U SERIES SINGLE & DUAL OUTPUT SPECIFICATION CONTROL AND PROTECTION Remote 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 Continuous APPROVALS AND STANDARD UL/cUL UL60950-1 TUV EN60950-1 CE EN61204-3(Class A for EMI) MECHANISM & PIN CONFIGURATION mm [inch] 45.72 [1.80] 2.54 [0.10] 5.08 [0.20] 50.80 [2.00] 5 10.16 [0.4] 1 5.08 [0.20] 5.00 [0.20] DIA 1.00 [0.04] 6 10.16 [0.40] 2 7 10.16 [0.40] 10.16 [0.40] 4 7.62 [0.30] 40.64 [1.60] 10.16 [0.40] 17.78 [0.70] 8 BOTTOM VIEW PHYSICAL CHARACTERISTICS CASE SIZE 40.6 x 50.8 x 10.2 mm 1.6 x 2 x 0.4 inches CASE MATERIAL Metal WEIGHT 60 g PIN ASSIGNMENT GENERAL PIN NO. 1 2 4 5 6 7 8 SINGLE Vi+ Vi - S. D. NO PIN Vo + Vo - Trim DUAL Vi+ Vi - S. D. Vo + com Vo - Trim S.D. : REMOTE ON / OFF DERATING Power out [ % ] 100 12V, 15V & dual NATURAL CONVECTION COOLING 0 -40 3.3V & 5V 60 71 100 o www.chinfa.com 2008.09.23 Ambient Temperature [ C ] [email protected] WDD20U SERIES DC - DC CONVERTER 20W SINGLE & DUAL OUTPUT FEATURES LOW COST 4:1 WIDE INPUT RANGE I/O ISOLATION INPUT Pi FILTER SHORT CIRCUIT PROTECTION HIGH PERFORMANCE 2 YEARS WARRANTY MODEL LIST OUTPUT CURRENT EFF. (typ.) EFF. (min.) +3.3 VDC 6000 mA 79% 77% + 5 VDC 4000 mA 80% 78% 20 WATTS + 12 VDC 1670mA 82% 20 WATTS + 15 VDC 1330 mA 83% 80% 81% 18~75 VDC 20 WATTS +3.3 VDC 6000 mA 79% 77% 18~75 VDC 20 WATTS + 5 VDC 4000 mA 81% 79% WDD20 - 12S5U 18~75 VDC 20 WATTS + 12 VDC 1670 mA 84% 82% WDD20 - 15S5U 18~75 VDC 20 WATTS + 15 VDC 1330 mA 84% 82% MODEL NO. INPUT VOLTAGE WDD20 - 03S4U 9~36 VDC 20 WATTS WDD20 - 05S4U 9~36 VDC 20 WATTS WDD20 - 12S4U 9~36 VDC WDD20 - 15S4U 9~36 VDC WDD20 - 03S5U WDD20 - 05S5U OUTPUT OUTPUT WATTAGE VOLTAGE Single Output Models Dual Output Models WDD20 - 05D4U 9~36 VDC 20 WATTS 5 VDC 2000 mA 80% 78% WDD20 - 12D4U 9~36 VDC 20 WATTS 12 VDC 830 mA 83% 81% WDD20 - 15D4U 9~36 VDC 20 WATTS 15 VDC 670 mA 84% 82% WDD20 - 05D5U WDD20 - 12D5U 18~75 VDC 18~75 VDC 20 WATTS 20 WATTS 5 VDC 12 VDC 2000 mA 830 mA 82% 84% 80% 82% WDD20 - 15D5U 18~75 VDC 20 WATTS 15 VDC 670 mA 84% 82% www.chinfa.com 2008.09.23 [email protected] WDD20U SERIES SINGLE & DUAL OUTPUT CIRCUIT SCHEMATIC Block diagram for WDD20U series with single output Vo + Vi + Switching Device Rectifier Vo - Vi - PWM Controller Opto Isolation Reference & Error Amp. Trim ON / OFF Block diagram for WDD20U series with dual output Vo + Vi + Rectifier com Switching Device Rectifier Vo - Vi - PWM Controller Opto Isolation Reference & Error Amp. Trim ON / OFF www.chinfa.com 2008.09.23 [email protected] WDD20U SERIES SINGLE & DUAL OUTPUT SPECIFICATION o All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed GENERAL Characteristics Conditions min. typ. max. 250 unit Switching frequency Vi nom, Io nom Isolation voltage Input / Output Isolation resistance Input / Output, @ 500VDC 100 Ambient temperature Vi nom, Io nom 3.3V & 5V output models -40 + 60 o 12V, 15V & dual output models -40 + 71 o + 100 o Case temperature KHz 1,500 VDC M Operating at Vi nom, Io nom Derating Vi nom Storage temperature Non operational Dimension L50.8 x W40.6 x H10.2 Cooling Free air convection Case material Metal C C C o %/ C See derating curve -40 o + 100 C mm max. unit INPUT SPECIFICATIONS Characteristics Conditions Input voltage range Ta min ... Ta max, Io nom No load input current Vi nom, Io = 0 Input voltage w/o damage Startup voltage Input filter Io nom Io nom min. typ. 9 24 36 VDC 18 48 48 75 VDC 24V models 30 mA 48V models 20 mA 24V models 40 VDC 48V models 80 VDC 24V models 8.5 VDC 48V models 16 VDC max. unit Pi type OUTPUT SPECIFICATIONS Characteristics Conditions Output voltage accuracy Vi nom, Io nom Minimum load Vi nom min. typ. 2 single output models dual output models (each output) % 0 % 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 % Transient recovery time Vi nom, Io 0 ...1/2 Io nom S 500 o Temperature coefficient Vi nom, Io nom 0.02 % / C Ripple & noise Vi nom, Io nom, 3.3V & 5V output models 100 mV BW = 20MHz 12V, 15V & dual 150 mV Voltage trim range Efficiency www.chinfa.com 2008.09.23 Vi nom 3.3V output models 5 % 5V, 12V, 15V & dual 10 % Vi nom, Io nom, Po / Pi Up to 84%, See model list [email protected] WDD20U SERIES SINGLE & DUAL OUTPUT SPECIFICATION CONTROL AND PROTECTION Remote 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 Continuous APPROVALS AND STANDARD UL/cUL UL60950-1 TUV EN60950-1 CE EN61204-3(Class A for EMI) MECHANISM & PIN CONFIGURATION mm [inch] 45.72 [1.80] 2.54 [0.10] 5.08 [0.20] 50.80 [2.00] 5 10.16 [0.4] 1 5.08 [0.20] 5.00 [0.20] DIA 1.00 [0.04] 6 10.16 [0.40] 2 7 10.16 [0.40] 10.16 [0.40] 4 7.62 [0.30] 40.64 [1.60] 10.16 [0.40] 17.78 [0.70] 8 BOTTOM VIEW PHYSICAL CHARACTERISTICS CASE SIZE 40.6 x 50.8 x 10.2 mm 1.6 x 2 x 0.4 inches CASE MATERIAL Metal WEIGHT 60 g PIN ASSIGNMENT GENERAL PIN NO. 1 2 4 5 6 7 8 SINGLE Vi+ Vi - S. D. NO PIN Vo + Vo - Trim DUAL Vi+ Vi - S. D. Vo + com Vo - Trim S.D. : REMOTE ON / OFF DERATING Power out [ % ] 100 12V, 15V & dual NATURAL CONVECTION COOLING 0 -40 3.3V & 5V 60 71 100 o www.chinfa.com 2008.09.23 Ambient Temperature [ C ] [email protected]