TDD25 SERIES DC - DC CONVERTER 23 ~ 25W SINGLE & DUAL OUTPUT FEATURES ‧EFFICIENCY UP TO 86% ‧2:1 & 3:1 WIDE INPUT RANGE ‧I/O ISOLATION ‧INPUT Pi FILTER ‧SHORT CIRCUIT PROTECTION ‧HIGH PERFORMANCE ‧2 YEARS WARRANTY MODEL LIST MODEL NO. INPUT EFF. EFF. CAPACITOR INPUT OUTPUT OUTPUT OUTPUT LOAD CURRENT VOLTAGE WATTAGE VOLTAGE CURRENT (min.) (typ.) (max.) (typ.) Single Output Models TDD25 - 03S2 18~60 VDC 1.17 A 23 WATTS +3.3 VDC 7000 mA 78% 80% 3500μF TDD25 - 05S2 18~60 VDC 1.20 A 25 WATTS + 5 VDC 5000 mA 84% 86% 3500μF TDD25 - 12S2 18~60 VDC 1.13 A 24 WATTS + 12 VDC 2000 mA 84% 86% 470μF TDD25 - 15S2 18~60 VDC 1.18 A 25 WATTS + 15 VDC 1700 mA 84% 86% 300μF TDD25 - 03S3 35~75 VDC 0.58 A 23 WATTS +3.3 VDC 7000 mA 78% 80% 3500μF TDD25 - 05S3 35~75 VDC 0.60 A 25 WATTS + 5 VDC 5000 mA 84% 86% 3500μF TDD25 - 12S3 35~75 VDC 0.56 A 24 WATTS + 12 VDC 2000 mA 84% 86% 470μF TDD25 - 15S3 35~75 VDC 0.59 A 25 WATTS + 15 VDC 1700 mA 84% 86% 300μF Dual Output Models TDD25 - 12D2 18~60 VDC 1.11 A 25 WATTS ± 12 VDC ± 1000 mA 84% 86% ± 220μF TDD25 - 15D2 18~60 VDC 1.21 A 25 WATTS ± 15 VDC ± 850 mA 84% 86% ± 100μF TDD25 - 12D3 35~75 VDC 0.59 A 25 WATTS ± 12 VDC ± 1000 mA 84% 86% ± 220μF TDD25 - 15D3 35~75 VDC 0.61 A 25 WATTS ± 15 VDC ± 850 mA 84% 86% ± 100μF www.chinfa.com 2010.02.09 [email protected] P1 TDD25 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 100KHz / 1V Vi nom, Io nom MΩ 1000 -25 12V, 15V & dual output models -25 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 L76.2 x W50.8 x H12 C % RH % / oC mm 701800 Hours Vi nom, Io min ± 0.02 Dimension MTBF Cooling VDC 100 3.3V & 5V output models unit KHz 1500 Operating at Vi nom, Io nom Temperature coefficient max. 300 Case temperature Storage temperature Relative humidity typ. min. Be1lcore issue 6@40 oC, GB Free air convection INPUT SPECIFICATIONS Characteristics Input voltage range No load input current min. typ. 18 24 60 VDC 35 48 75 VDC 24V models 20 mA 48V models 15 mA 24V models 65 80 VDC Conditions Ta min ...Ta max, Io nom Vi nom, Io=0 Input voltage w/o damage Io nom Startup voltage Io nom 48V models Input filter max. unit VDC 24V models 16 VDC 48V models 30 VDC Pi type OUTPUT SPECIFICATIONS Characteristics Conditions Output voltage accuracy Vi nom, Io nom Minimum load Vi nom single output models dual output models (each output) Line regulation Load regulation min. typ. Startup time Transient recovery time Vi nom, Io nom Ripple & noise Voltage trim range * % % Vi nom, 1~0.5 Io nom Vi nom, Io nom, 3.3V & 5V models BW = 20MHz 12V, 15V & dual Vi nom Efficiency Vi nom, Io nom, Po / Pi ±1 % ±2 ±5 % ±5 30 % ms 500 μs 150 mV Vout x±1% 3.3V model 5V, 12V, 15V & dual % 20 Vi nom, Io min ... Io nom, dual output models Aymmetrical load 20% - 100% FL unit ±2 0 Io nom, Vi min ...Vi max Vi nom, Io 0 ... Io nom, single output models Cross regulation (Dual model) max. ± 5 % mV % % ±10 Up to 86%, See model list and efficiency curve * NOTE : Pls refer to Fig1 & Table 1 for connection 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 : 2A, 48Vin : 1.5A) Output short circuit Current limited (Auto-recovery) Rated over load protection 110%min....140%max www.chinfa.com 2010.02.09 [email protected] P2 TDD25 SERIES SINGLE & DUAL OUTPUT PHYSICAL CHARACTERISTICS Case size 76.2 x 50.8 x 12 mm ( 3 x 2 x 0.47 inches ) Case material Plastic base / Metal case Weight 105 g Patting material Epoxy MECHANISM & PIN CONFIGURATION mm [inch] 6.35 [0.25] 63.50 [2.50] 76.20 [3.00] 5.08 [0.20] 6 15.24 [0.60] 2 7 3 8 10.16 [0.40] 10.16 [0.40] 12.00 [0.47] 6.00 [0.24] 10.16 [0.40] DIA 1.00 [0.04] 50.80 [2.00] 10.16 [0.40] 9 20.32 [0.80] 10.16 [0.40] 5 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] 10 BURL AT 4 CORNER BOTTOM VIEW PIN ASSIGNMENT GENERAL PIN NO. 2 3 5 6 7 8 9 10 SINGLE Vi - Vi+ ON / OFF N. C. N. C. Vo - Vo + Trim DUAL Vi - Vi+ ON / OFF Vo - N. C. com Vo + Trim CIRCUIT SCHEMATIC ‧Block diagram for TDD25 series with dual output ‧Block diagram for TDD25 series with single output Vo + Vi + Switching Device Vi + Vo + Rectifier Rectifier com Switching Device Vi - Vo - Rectifier Vo - Vi - PWM Controller Opto Isolation Reference & Error Amp. Trim PWM Controller ON / OFF Opto Isolation Reference & Error Amp. ON / OFF Trim RECOMMENDED CIRCUIT ‧Recommended filter for EN55022 Class B compliance. L1 ‧Recommended EN 55022 Class B filter circuit layout. C4 + Vin + C1 Vo + TDD25 C2 Vin - Vo - C3/C5 ‧The commponents used in the above figure, together with the manufacturer part numbers for these components, are as follows. C1 C2 C3/C4/C5 L1 TDD25-XXSX 6.8μF / 100V 6.8μF / 100V MLCC MLCC InF / 2KV MLCC 500μH Command Chock TDD25-XXDX 6.8μF / 100V 6.8μF / 100V MLCC MLCC 2.2nF / 2KV MLCC 500μH Command Chock www.chinfa.com 2010.02.09 [email protected] P3 TDD25 SERIES SINGLE & DUAL OUTPUT DERATING AND EFFICIENCY CURVE Temperature derating curve 100 Power out [ % ] 12V, 15V & dual NATURAL CONVECTION COOLING 0 -25 3.3V & 5V 61 71 Ambient Temperature [ oC ] 100 Efficiency Vs Input Voltage TDD25-05S2 Efficiency Vs Output Load TDD25-05S2 86 84 84 Efficiency [ % ] Efficiency [ % ] 86 82 80 82 80 78 Vi : 24VDC Io : Full Load 78 18 24 30 36 42 48 54 76 60 10 20 30 40 Input Voltage (V) 50 60 70 80 90 100 Output Load (%) Fig. 1 Trim connection ( For Single output ) ( For Dual output ) 6 6 6 7 7 7 8 Vo - 9 Vo + 10 Trim Rext 1 8 Vo - 9 Vo + 10 Rext 2 Trim Vo - Vo - 7 8 com 9 Vo + 10 6 Rext 1 Trim 8 com 9 Vo + 10 Rext 2 Trim Table 1 Typical resistor values for various output voltage adjustment settings Type TDD25-03SX Type TDD25-05SX Rext 1 Vo nom -2.5% 1KΩ Vo nom -5% Rext 2 Vo nom -5% 0Ω Vo nom -10% Vo nom +2.5% Vo nom +5% 6.8KΩ 3.9KΩ Vo nom +5% Vo nom +10% 1KΩ 0Ω 1KΩ 0Ω TDD25-12SX 62KΩ 20KΩ 8.2KΩ 1KΩ TDD25-15SX 180KΩ 62KΩ 20KΩ 0Ω TDD25-12DX 100KΩ 51KΩ 10KΩ 1KΩ TDD25-15DX 180KΩ 68KΩ 10KΩ 0Ω www.chinfa.com 2010.02.09 [email protected] P4