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Delta Electronics S36SS manual

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Table of contents for the manual

  • Page 1

    DA T ASHEET DS_S36SS3R304_0406 2006 Delta Electronics, Inc. 1 Delphi Series S36SS, 15W Family DC/DC Power Modules: 18Vin to 60Vin, 3.3V/4.5A out The Delphi Series S36SS, surface mountable, wide ranging input, single output, isolated DC/DC converter, is the latest offering from a world leader in power system and technology and man ufacturing – Del[...]

  • Page 2

    TECHNICAL SPECIFICATIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal V out unless otherw ise noted.) PARAMETER NOTES and CONDITIONS S36SS3R304NRFA Min. Ty p. Max. Units ABSOLUTE MAXIMUM RA TINGS Input Voltage Continuous 70 Vdc Transient (100ms) 100ms 100 Vdc Operating Temperature Refer to Figure 16 for the measuring point -40 105 °C St[...]

  • Page 3

    ELECTRICAL CHARACTERISTICS CURVES Figure 3: Typical input characteristics at room temperature. Figure 4: Turn-on transient at full rated load current (resistive load) (2 ms/div). Top Trace: Vout (1V/div ); Bottom Trace: ON/OFF Control (2V/div). 3 Figure 1: Efficiency vs. load curr ent for mi nimum, no minal, and maximum in put voltage at 25 ° C. F[...]

  • Page 4

    4 ELECTRICAL CHARACT ERISTICS CURVES Figure5 : Turn-on transient at zero load current (2 ms/div). Top Trace: Vout (1V/div); Bottom Tr ace: ON/OFF Control (2V/div). Figure 6: Output voltage response to step-chan ge in load current (50%-100%-50% of Io, max; di/dt = 0.1A/ µs). Load cap: 10µF, 100 m Ω  ESR tantalum capacitor an d 1µF ceramic ca[...]

  • Page 5

    ELECTRICAL CHARACTERISTICS CURVES 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0.0 2.0 4.0 6.0 8.0 L O A D CURRENT ( A ) O U T PU T VO LT AG E ( V Vin=48V Figure 11: Output voltage vs. load current showing typica l current limit curves and converter shutdow n points. 5 Strip Copper Vo(-) Vo(+) 10u 1u SCOPE RESISTIV E LOAD Figure 9 : Output voltage noise and rip[...]

  • Page 6

    DESIGN CONSIDERATION Input Source Impedance The impedance of the input source co nnecting to the DC/DC power modul es will interact with the modules and affect the stability. A low ac-impedan ce input source is recommend ed. If the source inductance is more than a few µ H, we advise adding a 10 to 100 µ F electrolytic capacitor (ESR < 0.7 Ω [...]

  • Page 7

    FEATURES DESCRIPTIONS Over-Current Protection The modules include an inte rnal output over-current protection circuit, which will endure current limiting for an unlimited duration during output overload. If the output current exceeds the OCP set point, the modul es will automatically shut down (hiccup mode). The modules will try to rest art after s[...]

  • Page 8

    8 Figure 15: Wind tunnel test setup THERMAL CONSIDERATIONS Thermal management is an im porta nt part of the system design. To ensure proper, reliable operation, sufficient cooling of the power module is neede d over the entire temperature range of the modul e. Co nvection cooling is usually the dominant mode of heat transfer. Hence, the choice of e[...]

  • Page 9

    9 Figure 18: Output current vs. ambient temperature and air velocity (Vin=48V) S36SS3R304(Standard) Output Current vs. Ambient Temperature and Air Velocity @ Vin = 48V 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 40 45 50 55 60 65 70 75 80 85 Ambient Temperature ( ℃ ) Output Current(A) Natural Convection 100LFM 200LFM 300LFM 400LFM 500LFM 600LFM F[...]

  • Page 10

    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 No Connection 7 NC No Connection 8 ON/OFF ON/OFF Logic 9 NC No Connection 10 NC No Connection 11 -Vin Negative input voltage 12 +Vin Positive input voltage 10 MECHANICAL DRAWING[...]

  • Page 11

    14 PART NUMBERING SYSTEM S 36 S S 3R3 04 N R F A Form Factor Input Voltage Number of Outputs Product Series Output Voltage Output Current ON/OFF Logic Pin Type Option Code S- Small Power 36- 18V~ 60V S- Single S- SMD 3R3- 3.3V 04- 4.5A N- Negative P- Positive R- SMD Pin Space-RoHS 5/6 F- RoHS 6/6 (Lead Free) A- Standard Function MODEL LIST MODEL NA[...]