• 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 All specifications are typical at nominal input, full load and 25ºC otherwise noted GENERAL SPECIFICATIONS OUTPUT SPECIFICATIONS Output power 20 Watts max Voltage accuracy Full load and nominal Vin ± 1% Voltage adjustability ± 10% Minimum load 0% Line regulation LL to HL at Full Load ± 0.2% Load regulation 10% to 100% FL 20MHz bandwidth (Measured with 104pF/50V MLCC) ± 0.5% Ripple and noise 0.02% / ºC, max Temperature coefficient Transient response recovery time 25% load step change Over voltage Zener diode clamp Over load protection See table 2.0V output 3.3V output 5V output 12V output 15V output % of FL at nominal input Short circuit protection 300uS 3.9V 3.9V 6.2V 15V 18V 150% max Hiccup, automatics recovery INPUT SPECIFICATIONS 48V nominal input Input voltage lockout DC-DC ON DC-DC OFF 36VDC 33VDC Input filter(Note 1) Input surge voltage 100mS max L-C type dv/dt 5V/ms,max (Complies with ETS300 132 part 4.4) 48V input 100VDC Input reflected ripple (Note 2) Nominal Vin and full load Start up time 36 – 75VDC Nominal Vin and constant resistor load 25mAp-p 25mS Remote ON/OFF (Note 3) Remote off input current DC-DC ON DC-DC OFF Nominal Vin Open or 3.5V < Vr < 12V Short or 0V < Vr < 1.2V 2.5mA See table Isolation voltage 1600VDC, min Isolation resistance 10 ohms, min 9 Isolation capacitance 500pF, max Switching frequency 300KHz, typ Approvals and standard IEC60950, UL1950, EN60950 Potting material Epoxy (UL94-V0) 1.95 X 1.19 X 0.38 Inch (49.5 X 30.2 X 9.7 mm) Dimensions Weight 32.5g (1.15oz) MTBF (Note 4) 1.632 x 106 hrs ENVIRONMENTAL SPECIFICATIONS Operating temperature range -40ºC ~ +85ºC (with derating) Maximum case temperature +100ºC Storage temperature range Thermal impedance Input voltage range Input voltage variation Efficiency -55ºC ~ +105ºC Nature convection Thermal shock 14ºC/Watt MIL-STD-810D Vibration 10~55Hz, 2G, 30minutes along X,Y and Z Relative humidity 5% to 95% RH EMC CHARACTERISTICS Conducted emissions EN55022 Level A Radiated emissions EN55022 Level A ESD EN61000-4-2 Perf. Criteria2 Radiated immunity EN61000-4-3 Perf. Criteria2 Fast transient EN61000-4-4 Perf. Criteria2 Surge EN61000-4-5 Perf. Criteria2 Conducted immunity EN61000-4-6 Perf. Criteria2 (7) (8) Model Number Input Range Output Voltage Output Current RIPPLE & (5) NOISE Input (6) Current Eff (%) Capacitor Load max SDC20-48S2P0 SDC20-48S3P3 SDC20-48S05 SDC20-48S12 SDC20-48S15 36 – 75 VDC 36 – 75 VDC 36 – 75 VDC 36 – 75 VDC 36 – 75 VDC 2.0 VDC 3.3 VDC 5.0 VDC 12.0 VDC 15.0 VDC 4000mA 4000mA 4000mA 1670mA 1330mA 50mV 50mV 75mV 75mV 75mV 214mA 344mA 496mA 497mA 503mA 82 84 88 88 87 17000uF 10300uF 6800uF 1200uF 750uF Note 0.382 (9.7) 12 0.06(1.52) 1.95(49.5) 7 0.01(0.25) 0.068(1.75) TOP VIEW 0.07(1.8) 1.19(30.2) 1.88(47.8) 1 6 1. All dimensions in Inches (mm) 2. Pin Pitch tolerance 0.014(0.35) BOTTOM VIEW 0.55(14.0) 0.12(3.2) 12 0.11(2.8) 0.787(20.0) DIA 0.05(1.27) X2 1.45(36.8) 0.13(3.3) 1.39(35.3) 1 0.10(2.54) 0.32(8.2) 0.80(20.3) 0.52(13.3) 0.063(1.6) Dip Hole Required for guide 2 place. 1.20(30.5) 1.32(33.6) 1.60(40.6) 1.52(38.7) 1.81(46.0) 1.72(43.8) SDC20-48S05 Derating Curve DIP PIN CONNECTION PIN DEFINE PIN DEFINE 1 2 3 4 5 6 + OUTPUT - OUTPUT NC TRIM NC NC 12 11 10 9 8 7 + INPUT - INPUT NC SYNC ON-OFF CTRL NC OUTPUT POWER (%) 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, 220F/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 40ºC. (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. 0.47 (12.1) 1. 100 75 50 Nature convection 25 0 -40 -25 -10 0 50 60 70 80 AMBIENT TEMPERATURE (ºC) 90 100