SDC20-48S05 ETC

Document overview

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Technical content

Isolation voltage 1600VDC, min Isolation resistance 109ohms, min Isolation capacitance 500pF, max Switching frequency 300KHz, typ Approvals and standard IEC60950, UL1950, EN60950 Potting material Epoxy (UL94-V0) Dimensions 1.95 X 1.19 X 0.38 Inch (49.5 X 30.2 X 9.7 mm) Weight 32.5g (1.15oz) MTBF (Note 4) 1.632 x 10 6 hrs ENVIRONMENTAL SPECIFICATIONS Operating temperature range -40ºC ~ +85ºC (with derating) Maximum case temperature +100ºC Storage temperature range -55ºC ~ +105ºC Thermal impedance Nature convection 14ºC/Watt Thermal shock 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 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 ± 0.5% Ripple and noise 20MHz bandwidth (Measured with 104pF/50V MLCC) See table Temperature coefficient /G730.02% / ºC, max Transient response recovery time 25% load step change 300uS Over voltage Zener diode clamp 2.0V output 3.3V output 5V output 12V output 15V output 3.9V 3.9V 6.2V 15V 18V Over load protection % of FL at nominal input 150% max Short circuit protection Hiccup, automatics recovery INPUT SPECIFICATIONS Input voltage range 48V nominal input 36 – 75VDC Input voltage lockout DC-DC ON DC-DC OFF 36VDC 33VDC Input filter(Note 1) L-C type Input voltage variation dv/dt 5V/ms,max (Complies with ETS300 132 part 4.4) Input surge voltage 100mS max 48V input 100VDC Input reflected ripple (Note 2) Nominal Vin and full load 25mAp-p Start up time Nominal Vin and constant resistor load 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 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. TECHNICAL SPECIFICATION All specifications are typical at nominal input, full load and 25ºC otherwise noted UL E193009 TUV R50011065 CB JPTUV-003967 CE MARK

  • 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

RIPPLE & NOISE (5) Input Current (6) Eff (7) (%) Capacitor(8) Load max SDC20-48S2P0 36 – 75 VDC 2.0 VDC 4000mA 50mV 214mA 82 17000uF SDC20-48S3P3 36 – 75 VDC 3.3 VDC 4000mA 50mV 344mA 84 10300uF SDC20-48S05 36 – 75 VDC 5.0 VDC 4000mA 75mV 496mA 88 6800uF SDC20-48S12 36 – 75 VDC 12.0 VDC 1670mA 75mV 497mA 88 1200uF SDC20-48S15 36 – 75 VDC 15.0 VDC 1330mA 75mV 503mA 87 750uF Note 1. 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/G2e9F/100V, ESR 90m/G2d6. 2. Simulated source impedance of 12uH. 12uH inductor on series with +Vin. 3. The ON/OFF control pin voltage is referenced to negative input. 4. BELLCORE TR-NWT-000332. Case I: 50% Stress, Temperature at 40ºC. (Ground fixed and controlled environment) 5. Test condition: nominal input and full load. 6. Maximum value at nominal input voltage and full load. 7. Typical value at nominal input voltage and full load. 8. Test by minimum Vin and constant resistor load. DIP PIN CONNECTION PIN DEFINE + OUTPUT - OUTPUT NC TRIM NC NC DEFINE + INPUT - INPUT NC SYNC ON-OFF CTRL NC PIN 50 60 70 80 90 100 -40 -25 0 -10 100 AMBIENT TEMPERATURE (ºC) OUTPUT POWER (%) SDC20-48S05 Derating Curve Nature convection 0.80(20.3) 1.20(30.5) 1.60(40.6) 1.81(46.0) 0.13(3.3) 1.45(36.8) 0.11(2.8) 0.063(1.6) Dip Hole Required for guide 2 place. 12 7 TOP VIEW 1.95(49.5) 1.19(30.2) 0.382 (9.7) 0.068(1.75) 1.88(47.8) 0.06(1.52) 1. All dimensions in Inches (mm) 2. Pin Pitch tolerance /G730.014(0.35) 1.72(43.8) 1.52(38.7) 1.32(33.6) 0.12(3.2) 0.32(8.2) 0.52(13.3) BOTTOM VIEW 0.47 (12.1) 1.39(35.3) DIA 0.05(1.27) X 2 0.10(2.54)