Instruction/ maintenance manual of the product S48SP Delta Electronics
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FEA TURES High efficiency: 90% @5V/7A Industry standard 1x2 pin out Size: 33.0x24.4x8.55mm (1.30”x0.96”x0.34”) SMD and Through-hole versions Fixed frequency operation 2:1.
DS_S48SP05007_05222008 2 TECHNICAL SPECIFICA TIONS ( T A =25°C, airflow rate=300 LFM, V in =48Vdc, n ominal V out unle ss otherwise noted.) PA R A M E T E R NOTES and CONDITIONS S48SP05007 (St andard) Min.
DS_S48SP05007_05222008 3 ELECTRICAL CHARACTERISTICS CUR VES Figure 1: Ef ficiency vs. load current for minimum, nomi nal, and maximum in put voltage at 25°C Figure 2: Power dissipation vs. load current for min imum, nominal, and max imum input voltage at 25°C.
DS_S48SP05007_05222008 4 ELECTRICAL CHARACTERISTICS CUR VES For Negative Remote On/Off Logic Figure 4: T urn-on transient at full rated load current (5 ms/div). Vin=48V . T op T race: V out, 2V/div; Bottom T race: ON/OFF input, 2V/div Figure 5: T urn-on transient at zero load current (5 ms/ div).
DS_S48SP05007_05222008 5 ELECTRICAL CHARACTERISTICS CUR VES Figure 8: Output voltage response to step-change in load current (75%-50% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF tantalum cap acitor and 1 µF ceramic capa citor. T op T race: V out (100mV/div , 50us/div), Bottom T race: Iout (2A/div).
DS_S48SP05007_05222008 6 ELECTRICAL CHARACTERISTICS CUR VES Figure 1 1: Input T erminal Ripple Current, i c , at full rated out put current and nominal i nput voltage with 12µH source impedance and 3.
DS_S48SP05007_05222008 7 DESIGN CONSIDERA TIONS Input Source Impedance The impedance of the input sou rce connecting to the DC/DC powe r modules will interact wit h the modules and affect the stability. A low ac-impedance input sou rce is recommended.
DS_S48SP05007_05222008 8 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.
DS_S48SP05007_05222008 9 FEA TURES DESCRIPTIONS (CON.) Output V olt age Adjustment To increase or decrea se the output voltage set point, 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.
DS_S48SP05007_05222008 10 THERMAL CONSIDERA TIONS Thermal management is an importa nt part of the system design. To ensure prop er, reliable operation, sufficient cooling of the power mod ule is needed over the entire temperature range of the modul e.
DS_S48SP05007_05222008 11 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 - M O U N T T A P E & R E E L RECOMMENDED P AD LA YOUT (SMD).
DS_S48SP05007_05222008 12 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.
DS_S48SP05007_05222008 13 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 voltag.
DS_S48SP05007_05222008 14 P ART NUMBERING SYSTEM S 48 S P 050 07 N R F B Product Ty p e Input V oltage Number of Output s Product Series Output V oltage Output Current ON/OFF Logic Pin Length/T ype Op.
An important point after buying a device Delta Electronics S48SP (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Delta Electronics S48SP yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Delta Electronics S48SP - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Delta Electronics S48SP you will learn all the available features of the product, as well as information on its operation. The information that you get Delta Electronics S48SP will certainly help you make a decision on the purchase.
If you already are a holder of Delta Electronics S48SP, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Delta Electronics S48SP.
However, one of the most important roles played by the user manual is to help in solving problems with Delta Electronics S48SP. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Delta Electronics S48SP along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
