Instruction/ maintenance manual of the product S36SS Delta Electronics
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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 rangin.
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.
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.
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.
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.
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.
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).
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.
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.
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.
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.
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