Delta Electronics S48SE manual

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Table of contents for the manual

  • Page 1

    Delphi S48SE, 17W 1x1 Brick Series DC/DC Power Modules: 48V in, 5.0V/3A out The Delphi S48SE series, 1x1 form factor , 48V input, single output, isolated DC/DC converters are the late st offering f rom a world lea de r in power systems te chnology and manuf acturing — Delt a Electronics, Inc. This product family is ava ilable in either a surface [...]

  • Page 2

    DS_S48SE05003_12292006 2 TECHNICAL SPECIFICA TIONS T A = 25°C, airflow rate = 300 LFM, V in = 48 Vdc, nominal V out u nless otherwise noted. PA R A M E T E R NOTES and CONDITIONS S48SE05003 (St andard) Min. T y p. Max. Unit s ABSOLUTE MAXIMUM RA TINGS Input V oltage Continuous 80 Vdc Transient (100ms ) 100ms 100 Vdc Operating T emperature Refer to[...]

  • Page 3

    DS_S48SE05003_12292006 3 ELECTRICAL CHARACTERISTICS CURVES Figure 1: Efficiency vs. load current for minimum, nominal, and maximum in put voltage at 25°C. Figure 2: Power dissipation vs. load current for minimu m, nominal, and maximum i nput voltage at 25°C. Figure 3: T ypical full load inp ut characteristics at room temperature. Figure 4: (For n[...]

  • Page 4

    DS_S48SE05003_12292006 4 ELECTRICAL CHARACTERISTICS CUR VES (CON.) Figure 7: (For positive remote on/off logi c)T u rn-on transi ent at zero load current (5 ms/div). Vi n=48V . T op T race: V out, 2V/div; Bottom T race: ON/OFF input, 2V/div . Figure 8: Output voltage response to step-change i n load current (75%-50% of Io, max; di/dt = 0.1A/µs). L[...]

  • Page 5

    DS_S48SE05003_12292006 5 ELECTRICAL CHARACTERISTICS CUR VES Figure 1 1: Input T erminal Ripple Current, i c , at full rated output current and nominal input voltage with 12 µH source impedance a nd 33µF electrolytic cap acitor (200mA/div , 1us/div) Figure 12: Input reflected ri pple current, i s , through a 12 µH source inductor at nominal input[...]

  • Page 6

    DS_S48SE05003_12292006 6 DESIGN CONSIDERA TIONS Input Source Impedance The impedance of the input sou rce connecting to the DC/DC powe r modules will intera ct with the modul es and affect the stability. A low ac-impedance input sou rce is recommended. If the source ind uctance is more than a few µ H, we advise adding a 10 to 100 µ F electrolytic[...]

  • Page 7

    DS_S48SE05003_12292006 7 FEA TURES DESCRIPTIONS Over-Current Protection The modules include an internal output over-curre nt protection circuit, which will endure current limiting for an unlimited duration during output overload. If the output current exceeds the OCP set point, the modules will automatically shut dow n, and enter hiccup mode or lat[...]

  • Page 8

    DS_S48SE05003_12292006 8 R Load FEA TURES DESCRIPTIONS (CON.) Output V oltage Adjustment To increase or decrea se the output voltage set poi nt, the modules may be connected wit h an external resistor between the TRIM pin and either the Vo (+) or Vo(-). The TRIM pin should be left open if this feature is not used. Vo ( +) Tri m V o (-) R trim -do w[...]

  • Page 9

    DS_S48SE05003_12292006 9 Thermal Derating Heat can be removed by incr easing airflow over the module. T o e nhance system relia bility , the power module should always be operated below the maximum operating temperature. If the temperature exceeds the maximum module temperature, reliability of the unit may be affected. THERMAL CURVES Figure 20: Hot[...]

  • Page 10

    DS_S48SE05003_12292006 10 P I C K A N D P L A C E L O C A T I O N S U R F A C E - MOUNT T APE & REEL RECOMMENDED P AD LA YOUT (SMD)[...]

  • Page 11

    DS_S48SE05003_12292006 11 LEADED (Sn/Pb) PROCESS RECOMMEND TEMP . PROFILE T ime ( sec. ) Pre-h eat tem p. 140~180 ° C 60~120 sec. Peak tem p. 210~230 ° C 5sec . Ramp-up te mp. 0.5~3.0 ° C /sec . T emperature ( ° C ) 50 100 150 200 250 300 60 0 120 180 240 2nd Ramp-up temp. 1.0~3.0 ° C /sec. Over 200 ° C 40~50sec. Cooling down ra te <3 ° C[...]

  • Page 12

    DS_S48SE05003_12292006 12 MECHANICAL DRA WING Surface-mount module Through-hole module Pin No. Name Function 1 2 3 4 5 6 +Vin -Vin ON/OFF (Optional) -V out TRIM (Optional) +V out Positive input voltage Negative input voltage Remote ON/OFF (Optional) Negative output voltage Output voltage trim (Optional) Positive output voltage[...]

  • Page 13

    DS_S48SE05003_12292006 13 P ART NUMBERING SYSTEM S 48 S E 050 03 N R F A Product Ty p e Input V olt age Number of Output s Product Series Output Vo l t a g e Output Current ON/OFF Logic Pin Length/T ype Option Code S - Small Power 48V - 36V~75V S - Single 1x1, 5A 050 – 5.0V 03 - 3A N - Negative P - Positive E - No remote on/off control pin R - 0.[...]