Delta Electronics S48SS Manuel d'utilisateur Page 1

DS_S48SS12001_06082006 DATASHEET DS_S48SS12001_06082006 Delta Electronics, Inc. 1 Telecom/DataCom  Wireless Networks  Optical Network Equipm

DS_s48SS12001_06082006 MECHANICAL DRAWING Pin No. Name Function 1 +Vout Positive output voltage 2 -Vout Negative output voltage3 Trim Outpu

DS_s48SS12001_06082006 14 PART NUMBERING SYSTEM S 48 S S 120 01 N R F A Form Factor Input Voltage Number of Outputs Product Series Output VoltageOu

DS_s48SS12001_06082006 TECHNICAL SPECIFICATIONS (TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES an

DS_s48SS12001_06082006 ELECTRICAL CHARACTERISTICS CURVES 606570758085900.25 0.5 0.75 1 1.25OUTPUT CURRENT (A)EFFICIENCY (%)36Vin 48Vin 75Vin 0.00.

DS_s48SS12001_06082006 4 ELECTRICAL CHARACTERISTICS CURVES Figure5: Turn-on transient at zero load current (10 ms/div). Top Trace: Vout (5V/

DS_s48SS12001_06082006 ELECTRICAL CHARACTERISTICS CURVES StripCopper Vo(-)Vo(+)10u1uSCOPE RESISTIVELOAD Figure 9: Output voltage noise and rippl

DS_s48SS12001_06082006 Figure 14: Output current vs. ambient temperature and air velocity (Vin=75V) Figure 15: Power dissipation vs. ambient tempera

DS_s48SS12001_06082006 DESIGN CONSIDERATION Input Source Impedance The impedance of the input source connecting to the DC/DC power modules will int

DS_s48SS12001_06082006 8 Vo(+)Vo(-)TrimRtrim-up Figure 17: Circuit configuration for trim-up (increase output voltage) If the external resistor is

DS_s48SS12001_06082006 9 THERMAL CONSIDERATIONS Thermal management is an important part of the system design. To ensure proper, reliable operation, s