FDD25 SERIES DC - DC CONVERTER 20 ~ 30W SINGLE & DUAL OUTPUT FEATURES f On/of ‧2:1 WIDE INPUT RANGE ‧I/O ISOLATION ‧INPUT Pi FILTER ‧SHORT CIRCUIT PROTECTION ‧HIGH PERFORMANCE ‧3 YEARS WARRANTY MODEL LIST INPUT EFF. EFF. CAPACITOR INPUT OUTPUT OUTPUT OUTPUT LOAD CURRENT MODEL NO. VOLTAGE WATTAGE VOLTAGE CURRENT (min.) (typ.) (max.) (typ.) Single Output Models FDD25 - 03S1 9~18 VDC 2.1 A 20 WATTS +3.3 VDC 6000 mA 77% 79% 7000μF FDD25 - 05S1 9~18 VDC 2.55 A 25 WATTS + 5 VDC 5000 mA 81% 83% 7000μF FDD25 - 12S1 9~18 VDC 2.45 A 25 WATTS + 12 VDC 2100 mA 84% 86% 3500μF FDD25 - 15S1 9~18 VDC 2.42 A 25 WATTS + 15 VDC 1700 mA 85% 87% 1000μF FDD25 - 03S2 18~36 VDC 1.05 A 20 WATTS +3.3 VDC 6000 mA 78% 80% 7000μF FDD25 - 05S2 18~36 VDC 1.24 A 25 WATTS + 5 VDC 5000 mA 83% 85% 7000μF FDD25 - 12S2 18~36 VDC 1.45 A 30 WATTS + 12 VDC 2500 mA 84% 86% 3500μF FDD25 - 15S2 18~36 VDC 1.45 A 30 WATTS + 15 VDC 2000 mA 86% 88% 1000μF FDD25 - 03S3 36~72 VDC 0.5 A 20 WATTS +3.3 VDC 6000 mA 78% 80% 7000μF FDD25 - 05S3 36~72 VDC 0.6 A 25 WATTS + 5 VDC 5000 mA 83% 85% 7000μF FDD25 - 12S3 36~72 VDC 0.71 A 30 WATTS + 12 VDC 2500 mA 85% 87% 3500μF FDD25 - 15S3 36~72 VDC 0.7 A 30 WATTS + 15 VDC 2000 mA 86% 88% 1000μF Dual Output Models FDD25 - 12D1 9~18 VDC 2.5 A 25 WATTS ± 12 VDC ± 1050 mA 83% 85% ± 470μF FDD25 - 15D1 9~18 VDC 2.47 A 25 WATTS ± 15 VDC ± 850 mA 85% 87% ± 220μF FDD25 - 12D2 18~36 VDC 1.45 A 30 WATTS ± 12 VDC ± 1250 mA 85% 87% ± 470μF FDD25 - 15D2 18~36 VDC 1.44 A 30 WATTS ± 15 VDC ± 1000 mA 86% 88% ± 220μF FDD25 - 12D3 36~72 VDC 0.73 A 30 WATTS ± 12 VDC ± 1250 mA 85% 87% ± 470μF FDD25 - 15D3 36~72 VDC 0.72 A 30 WATTS ± 15 VDC ± 1000 mA 87% 89% ± 220μF www.chinfa.com 2014.05.26 [email protected] P1 FDD25 SERIES SINGLE & DUAL OUTPUT SPECIFICATION o All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed GENERAL Characteristics Vi nom, Io nom Input - Output Isolation resistance Isolation capacitance Input - Output, @ 500VDC typ. min. Conditions Switching frequency Isolation voltage max. 200 KHz 1,500 VDC MΩ 100 Ambient temperature 100KHz / 1V Operating at Vi nom, Io nom Case temperature Operating at Vi nom, Io nom Derating Vi nom Non operational -40 +100 Vi nom, Io nom 20 95 Storage temperature Relative humidity Temperature coefficient -25 1,000 + 71 PF +100 o o o C C See derating curve Vi nom, Io min ± 0.02 L50.8 x W50.8 x H12.0 Dimension Be1lcore issue 6@40 oC, GB MTBF Cooling unit C % RH % / oC mm Hours 720,000 Free air convection INPUT SPECIFICATIONS Characteristics Input voltage range min. typ. max. unit 9 18 VDC 18 12 24 36 VDC 36 48 72 VDC 12V 20 mA 24V mA 48V 15 10 12V 20 VDC 24V 40 75 VDC Conditions Ta min ... Ta max, Io nom No load input current Vi nom, Io = 0 Input voltage w/o damage Io nom 48V Startup voltage Io nom mA VDC 12V 8.5 VDC 24V 15 VDC 48V 35 VDC Pi type Input filter OUTPUT SPECIFICATIONS Characteristics Output voltage accuracy Minimum load Line regulation Load regulation Conditions min. single output models 0 dual output models (each output) 10 typ. max. unit ± 2 % Vi nom, Io nom Vi nom % % Io nom, Vi min ...Vi max Vi nom, Io 0 ...Io nom, single output models Vi nom, Io min ...Io nom, dual output models Cross regulation (Dual model) Startup time Transient recovery time Ripple & noise Voltage trim range 1) Aymmetrical load 10% - 100% FL Vi nom, Io nom Vi nom, 1 ~ 0.5 lo nom Vi nom, Io nom, BW = 20MHz % ± 2 ± 5 % ± 5 30 % ms % 500 3.3V & 5V 12V, 15V & dual 3.3V Vi nom, Io nom 5V, 12V, 15V & dual Efficiency ± 1 Vi nom, Io nom, Po / Pi ±5 100 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. CONTROL AND PROTECTION Remote ON / OFF ON : opened or 5 ~ 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 : 2A, 48Vin : 1A) Output short circuit Current limited (Auto-recovery) Rated over load protection 110%min....140%max www.chinfa.com 2014.05.26 [email protected] P2 FDD25 SERIES SINGLE & DUAL OUTPUT PHYSICAL CHARACTERISTICS Case size 50.8 x 50.8 x 12.0 mm (2 x 2 x 0.47 inches) Case material Plastic base / Metal case Weight 70 g Potting material Epoxy MECHANISM & PIN CONFIGURATION mm [inch] 45.72 [1.80] 2.54 [0.10] 10.16 [0.40] 50.80 [2.00] 5 22.86 [0.90] 10.16 [0.40] 5.08 [0.20] 12.00 [0.47] 6 1 2 10.16 [0.40] 7 10.16 [0.40] 6.00 [0.24] 10.16 [0.40] 4 DIA 1.00 [0.04] 8 10.16 [0.40] 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 2 4 5 6 7 8 SINGLE Vi+ Vi - ON/OFF NO PIN Vo + Vo - Trim DUAL Vi+ Vi - ON/OFF Vo + com Vo - Trim CIRCUIT SCHEMATIC ‧Block diagram for FDD25 series with dual output ‧Block diagram for FDD25 series with single output Vo + Vi + Vi + Vo + Rectifier Switching Device com Switching Device Rectifier Rectifier Vo - Vi - PWM Controller Opto Isolation Reference & Error Amp. Trim ON / OFF Vo - Vi - Opto Isolation PWM Controller Reference & Error Amp. Trim ON / OFF RECOMMENDED CIRCUIT ‧The components used in the above figure, together with the manufacturer part numbers for these components, are as follows. ‧Recommended filter for EN55022 Class B compliance L1 C1 + Vin + C1 C2 Vo + FDD25 - C3 L1 1.5mH Common Choke 1.5mH Common Choke 1.5mH Common Choke FDD25-XXX1 4.7μF / 50V MLCC 4.7μF / 50V MLCC InF / 2KV MLCC FDD25-XXX2 3.3μF / 50V MLCC 3.3μF / 50V MLCC InF / 2KV MLCC FDD25-XXX3 3.3μF / 100V 3.3μF / 100V MLCC MLCC InF / 2KV MLCC Vo - Vin - C2 C3 www.chinfa.com 2014.05.26 [email protected] P3 FDD25 SERIES SINGLE & DUAL OUTPUT RECOMMENDED CIRCUIT ‧Recommended EN 55022 Class B filter circuit layout. DERATING AND EFFICIENCY CURVE Temperature derating curve Power out [ % ] 100 Safe Operating Area 0 -25 71 Ambient Temperature [ oC ] 100 88 90 87 85 86 80 Efficiency [ % ] Efficiency [ % ] Efficiency Vs Input Voltage FDD25-05S2 85 84 83 20 22 24 26 28 30 Input Voltage (V) 32 34 75 70 65 Io : Full Load 82 18 Efficiency Vs Output Load FDD25-05S2 60 36 Vi : 24VDC 10 20 30 40 50 60 70 Output Load (%) 80 90 100 Fig. 1 Trim connection ( For Single output ) 6 Vo + 7 Vo - 8 Rext 1 Trim ( For Dual output ) 6 Vo + 7 Vo - 8 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% FDD25-03SX 3.3KΩ Rext 2 Vo nom -5% 1KΩ Vo nom +2.5% Vo nom +5% 12KΩ 5.6KΩ Type Vo nom -5% Vo nom +5% Vo nom +10% FDD25-05SX 6.8KΩ 680Ω 4.7KΩ 680Ω FDD25-12SX 6.2KΩ 6.2KΩ 0Ω FDD25-15SX 22KΩ 150KΩ 6.2KΩ 20KΩ 3.9KΩ FDD25-12DX 150KΩ 68KΩ 10KΩ 1.5KΩ FDD25-15DX 330KΩ 180KΩ 27KΩ 6.8KΩ www.chinfa.com 2014.05.26 Vo nom -10% [email protected] P4