WDD20U SERIES DC - DC CONVERTER 20W SINGLE & DUAL OUTPUT FEATURES ‧EFFICIENCY UP TO 89% ‧2:1 WIDE INPUT RANGE ‧I/O ISOLATION ‧INPUT Pi FILTER ‧SHORT CIRCUIT PROTECTION ‧HIGH PERFORMANCE ‧2 YEARS WARRANTY R H a UL 60950-1 EN 60950-1 MODEL LIST INPUT EFF. EFF. CAPACITOR INPUT CURRENT OUTPUT OUTPUT OUTPUT LOAD MODEL NO. VOLTAGE (typ.) (max.) WATTAGE VOLTAGE CURRENT (min.) (typ.) (max.) Single Output Models +3.3 VDC 6000 mA 79% 81% 7000 μF 20 WATTS + 5 VDC 4000 mA 83% 85% 7000 μF 20 WATTS + 12 VDC 1670 mA 82% 84% 1000 μF 2.72 A 20 WATTS + 15 VDC 1330 mA 83% 85% 470 μF 1.0 A 1.4 A 20 WATTS +3.3 VDC 6000 mA 80% 82% 7000 μF 0.97 A 1.4 A 20 WATTS + 5 VDC 4000 mA 84% 86% 7000 μF 0.96 A 1.32 A 20 WATTS + 12 VDC 1670 mA 86% 88% 1000 μF 18~36 VDC 0.95 A 1.32 A 20 WATTS + 15 VDC 1330 mA 87% 89% 470 μF 35~75 VDC 0.5 A 0.71 A 20 WATTS +3.3 VDC 6000 mA 81% 83% 7000 μF WDD20 - 05S3U 35~75 VDC 0.49 A 0.71 A 20 WATTS + 5 VDC 4000 mA 82% 84% 7000 μF WDD20 - 12S3U 35~75 VDC 0.48 A 0.7 A 20 WATTS + 12 VDC 1670 mA 86% 88% 1000 μF WDD20 - 15S3U 35~75 VDC 0.47 A 0.7 A 20 WATTS + 15 VDC 1330 mA 87% 89% 470 μF WDD20 - 03S1U 9~18 VDC 2.04 A 2.83 A 20 WATTS WDD20 - 05S1U 9~18 VDC 1.98 A 2.72 A WDD20 - 12S1U 9~18 VDC 1.97 A 2.75 A WDD20 - 15S1U 9~18 VDC 1.96 A WDD20 - 03S2U 18~36 VDC WDD20 - 05S2U 18~36 VDC WDD20 - 12S2U 18~36 VDC WDD20 - 15S2U WDD20 - 03S3U Dual Output Models WDD20 - 05D1U 9~18 VDC 2.0 A 2.75 A 20 WATTS ± 5 VDC ± 2000 mA 82% 84% ±1000 μF WDD20 - 12D1U 9~18 VDC 1.93 A 2.72 A 20 WATTS ± 12 VDC ± 830 mA 83% 85% ± 470 μF WDD20 - 15D1U 9~18 VDC 1.93 A 2.72 A 20 WATTS ± 15 VDC ± 670 mA 84% 86% ± 470 μF WDD20 - 05D2U 18~36 VDC 0.98 A 1.4 A 20 WATTS ± 5 VDC ± 2000 mA 83% 85% ±1000 μF WDD20 - 12D2U 18~36 VDC 0.96 A 1.32 A 20 WATTS ± 12 VDC ± 830 mA 86% 88% ± 470 μF WDD20 - 15D2U 18~36 VDC 0.95 A 1.32 A 20 WATTS ± 15 VDC ± 670 mA 87% 89% ± 470 μF WDD20 - 05D3U 35~75 VDC 0.49 A 0.7 A 20 WATTS ± 5 VDC ± 2000 mA 83% 85% ±1000 μF WDD20 - 12D3U 35~75 VDC 0.48 A 0.7 A 20 WATTS ± 12 VDC ± 830 mA 86% 88% ± 470 μF WDD20 - 15D3U 35~75 VDC 0.48 A 0.7 A 20 WATTS ± 15 VDC ± 670 mA 87% 89% ± 470 μF www.chinfa.com 2010.05.21 [email protected] P1 WDD20U SERIES SINGLE & DUAL OUTPUT SPECIFICATION o All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed GENERAL Characteristics Conditions Switching frequency Isolation voltage Vi nom, Io nom Input - Output Isolation resistance Isolation capacitance Input - Output, @ 500VDC Ambient temperature typ. min. max. 250 KHz 1500 100KHz / 1V Vi nom, Io nom VDC MΩ 100 1000 3.3V & 5V output models -40 12V, 15V & dual output models -40 o +100 o o Operating at Vi nom, Io nom Derating Vi nom Non operational -40 +100 Vi nom, Io nom 20 95 Temperature coefficient C o C C See derating curve Vi nom, Io min ± 0.02 L50.8 x W40.64 x H10.16 Dimension Be1lcore issue 6@40 oC, GB MTBF Cooling PF + 61 + 71 Case temperature Storage temperature Relative humidity unit C % RH % / oC mm Hours 958000 Free air convection INPUT SPECIFICATIONS Characteristics Input voltage range min. typ. 9 18 VDC 18 12 24 36 VDC 35 48 75 VDC 12V models 25 mA 24V models 20 mA 48V models 15 mA 12V models 20 VDC 24V models 40 80 VDC Conditions Ta min ...Ta max, Io nom No load input current Input voltage w/o damage Vi nom, Io=0 Io nom 48V models Startup voltage Io nom max. unit VDC 8.5 16 VDC 24V models 48V models 33 VDC 12V models VDC Pi type Input filter OUTPUT SPECIFICATIONS Characteristics Conditions Output voltage accuracy Vi nom, Io nom Minimum load Vi nom typ. single output models 0 Aymmetrical load 10% - 100% FL Startup time Transient recovery time Vi nom, Io nom Ripple & noise Voltage trim range 1) Vi nom, 1~0.5 Io nom Vi nom, Io nom, BW = 20MHz Vi nom 3.3V & 5V models 12V, 15V & dual 3.3V model 5V, 12V, 15V & dual Efficiency Vi nom, Io nom, Po / Pi % % Vi nom, Io min ... Io nom, dual output models Cross regulation (Dual model) unit % 10 Io nom, Vi min ...Vi max Vi nom, Io 0 ... Io nom, single output models Load regulation max. ±2 dual output models (each output) Line regulation min. ± 5 ±1 % ±2 ±5 % ±5 30 % ms % 500 μs 100 mV 150 mV % % ±10 Up to 89%, See model list and efficiency curve NOTE 1 : Pls refer to Fig 1 & Table 1 for connection and resistance recommended. www.chinfa.com 2010.05.21 [email protected] P2 WDD20U SERIES SINGLE & DUAL OUTPUT SPECIFICATION o All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed CONTROL AND PROTECTION ON : opened or 8 ~ 10VDC applied, reference to input GND Remote ON / OFF 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) Rated over load protection 110%min....140%max APPROVALS APPROVALSAND ANDSTANDARD STANDARD UL/cUL UL 60950-1 Recognized TUV EN 60950-1, CB scheme CE EN 61204-3, EN 55022, Class A, EN 61000-4-2, EN61000-4-3, EN61000-4-4, EN61000-4-6 meet IEC 60068-2-6 (10-500 Hz, 2G, along X, Y, Z each Axis, 60 min for each Axis) Vibration PHYSICAL CHARACTERISTICS Case size 50.8 x 40.64 x 10.16 mm (2 x 1.6 x 0.4 inches) Plastic base / Metal case Case material Weight 60 g Patting material Silicone MECHANISM & PIN CONFIGURATION mm [inch] 2.54 [0.10] 45.72 [1.80] 5.08 [0.20] 5 10.16 [0.4] DIA 1.00 [0.04] 6 1 5.08 [0.20] 6.00 [0.24] 10.16 [0.40] 2 7 10.16 [0.40] 10.16 [0.40] 4 8 GENERAL TOLERANCE 0.00[0.00] - 30.00[1.18] ±0.30[0.01] 30.00[1.18] - 120.00[4.72] ±0.50[0.02] 40.64 [1.60] 10.16 [0.40] 17.78 [0.70] 50.80 [2.00] BOTTOM VIEW PIN ASSIGNMENT GENERAL PIN NO. 1 4 ON / OFF 6 7 8 Vi+ 2 Vi - 5 SINGLE DUAL NO PIN Vo - Trim Vi+ Vi - ON / OFF Vo + Vo + com Vo - Trim CIRCUIT SCHEMATIC ‧Block diagram for WDD20U series with dual output ‧Block diagram for WDD20U series with single output Vo + Vi + Vo + Vi + Rectifier Switching Device com Switching Device Rectifier Rectifier Vo - Vi PWM Controller Opto Isolation Reference & Error Amp. ON / OFF Vo - Vi - PWM Controller Trim Opto Isolation Reference & Error Amp. Trim ON / OFF RECOMMENDED CIRCUIT ‧Recommended filter for EN55022 Class B compliance ‧Recommended EN 55022 Class B filter circuit layout. L1 + Vin + C1 C2 Vo + WDD20U Vin - Vo - - www.chinfa.com 2010.05.21 C3 [email protected] P3 WDD20U SERIES SINGLE & DUAL OUTPUT RECOMMENDED CIRCUIT DERATING AND EFFICIENCY CURVE ‧The commponents used in the above figure, together with the manufacturer part numbers for these components, are as follows. C2 C3 WDD20-XXX1U 3.3μF / 50V MLCC 3.3μF / 50V MLCC InF / 2KV MLCC WDD20-XXX2U 1μF / 50V MLCC 1μF / 50V MLCC InF / 2KV MLCC WDD20-XXX3U 3.3μF / 100V 3.3μF / 100V MLCC MLCC InF / 2KV MLCC 100 L1 12V, 15V & dual Power out [ % ] C1 Temperature derating curve 1.5mH Common Choke 1.5mH Common Choke 0.5mH Common Choke NATURAL CONVECTION COOLING 0 -40 3.3V & 5V 61 71 Ambient Temperature [ oC ] 100 DERATING AND EFFICIENCY CURVE 89 90 88 85 Efficiency [ % ] Efficiency [ % ] Efficiency Vs Input Voltage WDD20-05S2U 87 86 85 20 22 24 26 28 30 32 34 80 75 70 65 Io : Full Load 84 18 Efficiency Vs Output Load WDD20-05S2U Vi : 24VDC 60 36 10 20 30 40 Input Voltage (V) 50 60 70 80 90 100 Output Load (%) Fig. 1 Trim connection ( For Single output ) 6 7 8 ( For Dual output ) Vo + Rext 1 Vo - Trim 6 7 8 Vo + Vo Rext 2 5 Vo + 5 Vo + 6 com 6 com 7 Vo - 7 Vo - 8 Trim 8 Trim Rext 1 Rext 2 Trim Table 1 Typical resistor values for various output voltage adjustment settings Type Rext 1 Vo nom -2.5% Rext 2 Vo nom -5% Vo nom +2.5% Vo nom +5% 7.5KΩ 3KΩ WDD20-03SXU 820Ω Type Vo nom -5% Vo nom +5% Vo nom +10% WDD20-05SXU 3.9KΩ 0Ω 4.7KΩ 0Ω WDD20-12SXU 130KΩ 18KΩ 10KΩ 1KΩ WDD20-15SXU 130KΩ 20KΩ 20KΩ 3.9KΩ WDD20-05DXU 33KΩ 12KΩ 10KΩ 3KΩ WDD20-12DXU 120KΩ 56KΩ 12KΩ 2KΩ WDD20-15DXU 180KΩ 75KΩ 10KΩ 1.2KΩ www.chinfa.com 2010.05.21 0Ω Vo nom -10% [email protected] P4 WDD20U SERIES DC - DC CONVERTER 20W SINGLE & DUAL OUTPUT FEATURES ‧EFFICIENCY UP TO 84% ‧4:1 WIDE INPUT RANGE ‧I/O ISOLATION ‧INPUT Pi FILTER ‧SHORT CIRCUIT PROTECTION ‧HIGH PERFORMANCE ‧2 YEARS WARRANTY R H a UL 60950-1 EN 60950-1 MODEL LIST INPUT EFF. CAPACITOR INPUT OUTPUT OUTPUT OUTPUT EFF. CURRENT LOAD MODEL NO. VOLTAGE (typ.) (max.) WATTAGE VOLTAGE CURRENT (min.) (typ.) (max.) Single Output Models WDD20 - 03S4U 9~36 VDC 1.06 A 2.88 A 20 WATTS +3.3 VDC 6000 mA 77% 79% 7000 μF WDD20 - 05S4U 9~36 VDC 1.06 A 2.88 A 20 WATTS + 5 VDC 4000 mA 78% 80% 3500 μF WDD20 - 12S4U 9~36 VDC 1.03 A 2.8 A 20 WATTS + 12 VDC 1670 mA 80% 82% 470 μF WDD20 - 15S4U 9~36 VDC 1.02 A 2.8 A 20 WATTS + 15 VDC 1330 mA 81% 83% 220 μF WDD20 - 03S5U 18~75 VDC 0.53 A 1.45 A 20 WATTS +3.3 VDC 6000 mA 77% 79% 7000 μF WDD20 - 05S5U 18~75 VDC 0.51 A 1.45 A 20 WATTS + 5 VDC 4000 mA 79% 81% 3500 μF WDD20 - 12S5U 18~75 VDC 0.5 A 1.4 A 20 WATTS + 12 VDC 1670 mA 82% 84% 3500 μF WDD20 - 15S5U 18~75 VDC 0.5 A 1.4 A 20 WATTS + 15 VDC 1330 mA 82% 84% 1000 μF Dual Output Models WDD20 - 05D4U 9~36 VDC 1.06 A 2.88 A 20 WATTS ± 5 VDC ± 2000 mA 78% 80% ±1000 μF WDD20 - 12D4U 9~36 VDC 1.02 A 2.8 A 20 WATTS ± 12 VDC ± 830 mA 81% 83% ± 470 μF WDD20 - 15D4U 9~36 VDC 1.0 A 2.8 A 20 WATTS ± 15 VDC ± 670 mA 82% 84% ± 470 μF WDD20 - 05D5U 18~75 VDC 0.52 A 1.4 A 20 WATTS ± 5 VDC ± 2000 mA 80% 82% ±1000 μF WDD20 - 12D5U 18~75 VDC 0.49 A 1.4 A 20 WATTS ± 12 VDC ± 830 mA 82% 84% ± 470 μF WDD20 - 15D5U 18~75 VDC 0.5 A 1.4 A 20 WATTS ± 15 VDC ± 670 mA 82% 84% ± 470 μF www.chinfa.com 2010.05.21 [email protected] P5 WDD20U SERIES SINGLE & DUAL OUTPUT SPECIFICATION o All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed GENERAL Characteristics Conditions Switching frequency Isolation voltage Vi nom, Io nom Input - Output Isolation resistance Isolation capacitance Input - Output, @ 500VDC Ambient temperature 250 100KHz / 1V Vi nom, Io nom VDC MΩ 100 3.3V & 5V output models -40 12V, 15V & dual output models -40 Derating Vi nom Non operational Vi nom, Io nom + 61 + 71 PF o C o C +100 o -40 +100 o 20 95 C See derating curve Vi nom, Io min ± 0.02 L50.8 x W40.64 x H10.16 Dimension Be1lcore issue 6@40 oC, GB MTBF Cooling unit KHz 1000 Operating at Vi nom, Io nom Temperature coefficient max. 1500 Case temperature Storage temperature Relative humidity typ. min. C % RH % / oC mm Hours 960000 Free air convection INPUT SPECIFICATIONS Characteristics Input voltage range min. typ. 9 24 36 VDC 18 48 75 VDC 24V models 20 mA 48V models 15 mA 24V models 40 80 VDC Conditions Ta min ...Ta max, Io nom No load input current Vi nom, Io=0 Input voltage w/o damage Io nom Startup voltage Io nom 48V models max. unit VDC 24V models 8.5 VDC 48V models 16 VDC Pi type Input filter OUTPUT SPECIFICATIONS Characteristics Conditions Output voltage accuracy Vi nom, Io nom Minimum load Vi nom typ. 0 Aymmetrical load 10% - 100% FL Startup time Transient recovery time Vi nom, Io nom Ripple & noise Voltage trim range 1) Vi nom, 1~0.5 Io nom Vi nom, Io nom, BW = 20MHz Vi nom ±1 % ±2 ±5 % ±5 30 % ms % 500 μs 3.3V & 5V models 100 mV 12V, 15V & dual 3.3V model 150 mV 5V, 12V, 15V & dual Efficiency % % Vi nom, Io min ... Io nom, dual output models Cross regulation (Dual model) unit % 10 Io nom, Vi min ...Vi max Vi nom, Io 0 ... Io nom, single output models Load regulation max. ±2 single output models dual output models (each output) Line regulation min. Vi nom, Io nom, Po / Pi ± 5 % % ±10 Up to 84%, See model list and efficiency curve NOTE 1 : Pls refer to Fig 1 & Table 1 for connection and resistance recommended. 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 (24Vin : 3A, 48Vin : 1.5A) Output short circuit Current limited (Auto-recovery) Rated over load protection 110%min....140%max www.chinfa.com 2010.05.21 [email protected] P6 WDD20U SERIES SINGLE & DUAL OUTPUT SPECIFICATION o All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed APPROVALS APPROVALSAND ANDSTANDARD STANDARD UL/cUL UL 60950-1 Recognized TUV EN 60950-1, CB scheme CE EN 61204-3, EN 55022, Class A, EN 61000-4-2, EN61000-4-3, EN61000-4-4, EN61000-4-6 meet IEC 60068-2-6 (10-500 Hz, 2G, along X, Y, Z each Axis, 60 min for each Axis) Vibration PHYSICAL CHARACTERISTICS Case size Case material Weight 50.8 x 40.64 x 10.16 mm (2 x 1.6 x 0.4 inches) Plastic base / Metal case 60 g Patting material Silicone MECHANISM & PIN CONFIGURATION mm [inch] 2.54 [0.10] 45.72 [1.80] 5.08 [0.20] 5 10.16 [0.4] DIA 1.00 [0.04] 6 1 5.08 [0.20] 6.00 [0.24] 40.64 [1.60] 10.16 [0.40] 17.78 [0.70] 10.16 [0.40] 2 7 10.16 [0.40] 10.16 [0.40] 4 8 GENERAL TOLERANCE 0.00[0.00] - 30.00[1.18] ±0.30[0.01] 30.00[1.18] - 120.00[4.72] ±0.50[0.02] 50.80 [2.00] BOTTOM VIEW PIN ASSIGNMENT GENERAL PIN NO. 1 4 ON / OFF 6 7 8 Vi+ 2 Vi - 5 SINGLE DUAL NO PIN Vo - Trim Vi+ Vi - ON / OFF Vo + Vo + com Vo - Trim CIRCUIT SCHEMATIC ‧Block diagram for WDD20U series with single output ‧Block diagram for WDD20U series with dual output Vo + Vi + Vo + Vi + Rectifier Switching Device com Switching Device Rectifier Rectifier Vo - Vi - PWM Controller Opto Isolation Reference & Error Amp. ON / OFF Vo - Vi - PWM Controller Trim Opto Isolation Reference & Error Amp. Trim ON / OFF RECOMMENDED CIRCUIT ‧Recommended filter for EN55022 Class B compliance ‧Recommended EN 55022 Class B filter circuit layout. L1 + Vin + C1 C2 Vo + WDD20U Vin - Vo - C3 www.chinfa.com 2010.05.21 [email protected] P7 WDD20U SERIES SINGLE & DUAL OUTPUT RECOMMENDED CIRCUIT DERATING AND EFFICIENCY CURVE ‧The commponents used in the above figure, together with the manufacturer part numbers for these components, are as follows. C2 C3 1μF / 50V MLCC 1μF / 50V MLCC InF / 2KV MLCC 3.3μF / 100V 3.3μF / 100V WDD20-XXX5U MLCC MLCC 100 L1 1.5mH Common Choke 0.5mH Common Choke InF / 2KV MLCC 12V, 15V & dual Power out [ % ] WDD20-XXX4U C1 Temperature derating curve NATURAL CONVECTION COOLING 0 -40 3.3V & 5V 61 71 Ambient Temperature [ oC ] 100 DERATING AND EFFICIENCY CURVE 90 90 85 85 Efficiency [ % ] Efficiency [ % ] Efficiency Vs Input Voltage WDD20-05S4U 80 75 70 20 22 24 26 28 30 32 34 80 75 70 65 Io : Full Load 65 18 Efficiency Vs Output Load WDD20-05S4U 60 36 Vi : 24VDC 10 20 30 40 Input Voltage (V) 50 60 70 80 90 100 Output Load (%) Fig. 1 Trim connection ( For Single output ) 6 7 8 ( For Dual output ) Vo + Rext 1 Vo - Trim 6 7 8 Vo + Vo Rext 2 5 Vo + 5 Vo + 6 com 6 com 7 Vo - 7 Vo - 8 Trim 8 Trim Rext 1 Rext 2 Trim Table 1 Typical resistor values for various output voltage adjustment settings Type Rext 1 Vo nom -2.5% Rext 2 Vo nom -5% Vo nom +2.5% Vo nom +5% 7.5KΩ 3KΩ WDD20-03SXU 820Ω Type Vo nom -5% Vo nom +5% Vo nom +10% WDD20-05SXU 3.9KΩ 0Ω 4.7KΩ 0Ω WDD20-12SXU 130KΩ 18KΩ 10KΩ 1KΩ WDD20-15SXU 130KΩ 20KΩ 20KΩ 3.9KΩ WDD20-05DXU 33KΩ 12KΩ 10KΩ 3KΩ WDD20-12DXU 120KΩ 56KΩ 12KΩ 2KΩ WDD20-15DXU 180KΩ 75KΩ 10KΩ 1.2KΩ www.chinfa.com 2010.05.21 0Ω Vo nom -10% [email protected] P8