Instruction/ maintenance manual of the product Delphi Series S48SS Delta Electronics
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DS_S48SS12001_060820 06 DATASHEET DS_S48SS12001_060820 06 Delta Electronics, Inc. 1 Telecom/DataCom Wireless Networks Optical Network Equipment Server and Data Storage Industrial/Test Equipment Delphi Series S48SS, 15W Family DC/DC Power Module: 48V in, 12V/1.
DS_s48SS12001_060820 06 TECHNICAL SPECIFICATIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal Vou t u nless otherwise noted.) PARAMETER NOTES and CONDITIONS S48SS12001NRFA Min.
DS_s48SS12001_060820 06 ELECTRICAL CHARACTERISTICS CURVES 60 65 70 75 80 85 90 0. 2 5 0. 5 0 . 75 1 1. 2 5 O UTP UT CURRE NT (A ) EF F IC I EN C Y ( %) 36Vi n 48Vi n 75V i n 0. 0 0. 5 1. 0 1. 5 2. 0 2. 5 3. 0 3. 5 4. 0 0. 25 0. 5 0 . 75 1 1. 25 O UTP UT CURRE NT (A ) POW ER D I SSIPAT IO N ( W Figure 1: Efficiency vs.
DS_s48SS12001_060820 06 4 ELECTRICAL CHARACT ERISTICS CURVES Figure5 : Turn-on transient at zero load current (10 ms/di v). Top Trace: Vout (5V/div); Bottom Tr ace: ON/OFF Control (2V/div). Figure 6: Output voltage response to step-chan ge in load current (50%-75%-50% of Io, max; di/dt = 0.
DS_s48SS12001_060820 06 ELECTRICAL CHARACTERISTICS CURVES Strip Copper Vo(-) Vo(+) 10u 1u SCOPE RESISTIV E LOAD Figure 9 : Output voltage noise and ripple measure ment test setup. Scope measurement shoul d be made using a BNC cable (length shorter than 20 inches) .
DS_s48SS12001_060820 06 Figure 14: Output current vs. ambient temperature and air velocity (Vin=75V) Figure 15: Power dissipation vs. ambient temperature and air velocity . S48SS12001NR A Pow er Dissipation vs. Ambie nt Temperature and Air Ve locity 0.
DS_s48SS12001_060820 06 DESIGN CONSIDERATION Input Source Impedance The impedance of the input source co nnecting to the DC/DC power modul es will interact with the modul es and affect the stability.
DS_s48SS12001_060820 06 8 Vo(+) Vo(-) Trim R trim-up Figure 17: Circuit configuration for trim-up (increase output voltage) If the external resistor is connected between the TRIM and Vo - the output voltage set point increases.
DS_s48SS12001_060820 06 9 THERMAL CONSIDERATIONS Thermal management is an im porta nt part of the system design. To ensure proper, reliable operation, sufficie nt cooling of the power module is neede d over the entire temperature range of the modul e.
DS_s48SS12001_060820 06 MECHANICAL DRAWING Pin No. Name Function 1 +Vout Positive output voltage 2 -Vout Negative output voltage 3 Trim Output voltage trim 4 NC No Connection 5 NC No Connection 6 NC N.
DS_s48SS12001_060820 06 14 PART NUMBERING SYSTEM S 48 S S 120 01 N R F A Form Factor Input Voltage Number of Outputs Product Series Output Voltage Output Current ON/OFF Logic Pin Length Option Code S- Small Power 48V- 36V~75V S- Single S- SMD 120- 12.
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If you already are a holder of Delta Electronics Delphi Series S48SS, 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 Delphi Series S48SS.
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