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| * 20 WATTS MAXIMUM OUTPUT POWER * 2:1 WIDE INPUT VOLTAGE RANGE * INTERNATIONAL SAFETY STANDARD APPROVAL * SIX-SIDED CONTINUOUS SHIELD * HIGH EFFICIENCY UP TO 88% * SMD TYPE 1.95" X 1.19" X 0.38" PACKAGE * FIXED SWITCHING FREQUENCY * PATENT The SDC20 series offer 20 watts of output power from a 1.95 x 1.19 x 0.38 inch SMD type package. The SDC20 series with 2:1 wide input voltage of 36-75VDC and features 1600VDC of isolation, short-circuit and over-voltage protection, as well as six sided shielding. All models are particularly suited to telecommunications, industrial, mobile telecom and test equipment applications. UL E193009 TUV R50011065 CB JPTUV-003967 CE MARK T E C H N I C A L S P E C I F I C AT I O N OUTPUT SPECIFICATIONS Output power Voltage accuracy Voltage adjustability Minimum load Line regulation Load regulation Ripple and noise LL to HL at Full Load 10% to 100% FL 20MHz bandwidth (Measured with 104pF/50V MLCC) Full load and nominal Vin All specifications are typical at nominal input, full load and 25C otherwise noted GENERAL SPECIFICATIONS 20 Watts max 1% 10% 0% 0.2% 0.5% See table Efficiency Isolation voltage Isolation resistance Isolation capacitance Switching frequency Approvals and standard Potting material Dimensions Weight MTBF (Note 4) See table 1600VDC, min 10 ohms, min 500pF, max 300KHz, typ IEC60950, UL1950, EN60950 Epoxy (UL94-V0) 1.95 X 1.19 X 0.38 Inch (49.5 X 30.2 X 9.7 mm) 32.5g (1.15oz) 1.632 x 106 hrs 9 Temperature coefficient 2.0V output 3.3V output 5V output 12V output 15V output % of FL at nominal input I0.02% / C, max 300uS 3.9V 3.9V 6.2V 15V 18V 150% max Transient response recovery time 25% load step change Over voltage Zener diode clamp Over load protection Short circuit protection ENVIRONMENTAL SPECIFICATIONS Operating temperature range Maximum case temperature Storage temperature range Thermal impedance Nature convection -40C ~ +85C (with derating) +100C -55C ~ +105C 14C/Watt MIL-STD-810D 10~55Hz, 2G, 30minutes along X,Y and Z 5% to 95% RH Hiccup, automatics recovery INPUT SPECIFICATIONS Input voltage range Input voltage lockout Input filter(Note 1) Input voltage variation Input surge voltage 100mS max dv/dt 48V nominal input DC-DC ON DC-DC OFF 36 - 75VDC 36VDC 33VDC L-C type 5V/ms,max (Complies with ETS300 132 part 4.4) 100VDC 25mAp-p 25mS Thermal shock Vibration Relative humidity EMC CHARACTERISTICS Conducted emissions Radiated emissions ESD Radiated immunity Fast transient Surge Conducted immunity EN55022 EN55022 EN61000-4-2 EN61000-4-3 EN61000-4-4 EN61000-4-5 EN61000-4-6 Level A Level A Perf. Criteria2 Perf. Criteria2 Perf. Criteria2 Perf. Criteria2 Perf. Criteria2 48V input Input reflected ripple (Note 2) Nominal Vin and full load Start up time Nominal Vin and constant resistor load DC-DC ON DC-DC OFF Nominal Vin Remote ON/OFF (Note 3) Open or 3.5V < Vr < 12V Short or 0V < Vr < 1.2V 2.5mA Remote off input current Model Number SDC20-48S2P0 SDC20-48S3P3 SDC20-48S05 SDC20-48S12 SDC20-48S15 Input Range 36 - 75 VDC 36 - 75 VDC 36 - 75 VDC 36 - 75 VDC 36 - 75 VDC Output Voltage 2.0 VDC 3.3 VDC 5.0 VDC 12.0 VDC 15.0 VDC Output Current 4000mA 4000mA 4000mA 1670mA 1330mA RIPPLE & (5) NOISE 50mV 50mV 75mV 75mV 75mV Input (6) Current 214mA 344mA 496mA 497mA 503mA Eff (%) 82 84 88 88 87 (7) Capacitor Load max 17000uF 10300uF 6800uF 1200uF 750uF (8) Note 1. 2. 3. 4. 5. 6. 7. 8. An external filter capacitor is required for normal operation. The capacitor should be capable of handing 1A ripple current for 48V models. Power mate suggest: Nippon chemi-con KMF series, 220 F/100V, ESR 90m . Simulated source impedance of 12uH. 12uH inductor on series with +Vin. The ON/OFF control pin voltage is referenced to negative input. BELLCORE TR-NWT-000332. Case I: 50% Stress, Temperature at 40C. (Ground fixed and controlled environment) Test condition: nominal input and full load. Maximum value at nominal input voltage and full load. Typical value at nominal input voltage and full load. Test by minimum Vin and constant resistor load. 1.95(49.5) 0.06(1.52) 0.01(0.25) 12 1.19(30.2) 7 TOP VIEW 0.382 (9.7) 0.068(1.75) 1.88(47.8) 0.07(1.8) 0.13(3.3) 0.11(2.8) 0.80(20.3) 1.20(30.5) 1 6 1. All dimensions in Inches (mm) 2. Pin Pitch tolerance I0.014(0.35) 0.787(20.0) DIA 0.05(1.27) X2 0.47 (12.1) 0.55(14.0) 0.12(3.2) 0.10(2.54) 0.32(8.2) 0.52(13.3) 1.32(33.6) 1.52(38.7) 1.72(43.8) 1 0.063(1.6) Dip Hole Required for guide 2 place. 1.60(40.6) 1.81(46.0) SDC20-48S05 Derating Curve OUTPUT POWER (%) DIP PIN CONNECTION PIN 1 2 3 4 5 6 DEFINE + OUTPUT - OUTPUT NC TRIM NC NC PIN 12 11 10 9 8 7 DEFINE + INPUT - INPUT NC SYNC ON-OFF CTRL NC 100 75 50 25 0 -40 -25 -10 Nature convection 0 50 60 70 80 90 100 AMBIENT TEMPERATURE (C) 1.45(36.8) BOTTOM VIEW 1.39(35.3) 12 |
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