Delta Electronics Series H48SV manual Design Considerations, Input Source Impedance

Contents OPTIONS FEATURESAPPLICATIONS DATASHEET DSH48SV0502008102007INPUT CHARACTERISTICS TECHNICAL SPECIFICATIONSOUTPUT CHARACTERISTICS DYNAMIC CHARACTERISTICSELECTRICAL CHARACTERISTICS CURVES For Positive Remote On/Off Logic For Negative Remote On/Off LogicFigure 8 Output voltage response to step-change in load current 50%-75%-50% of Imax dI/dt = 0.1A/µs.Vin=48V. Load cap 10µF, tantalum capacitor and 1µF ceramic capacitor. Top trace Vout 100mV/div, Bottom trace Iout 5A/div. Scope measurement should be made using a BNC cable length shorter than 20 inch. Position the load between 51 mm and 76 mm 2 inches and 3 inches from the module Copper Strip SCOPELOAD OUTPUT VOLTAGE Vin=48VLOAD CURRENT A Figure 19 Power dissipation vs. ambient temperature and air THERMAL CURVES NO HEATSINKFigure 18 Output current vs. ambient temperature and air velocity V in=75VSoldering and Cleaning Considerations Safety ConsiderationsDESIGN CONSIDERATIONS Input Source ImpedanceOver-Current Protection FEATURES DESCRIPTIONSOver-Voltage Protection Over-Temperature ProtectionOutput Voltage Adjustment TRIM FEATURES DESCRIPTIONS CONThermal Testing Setup THERMAL CONSIDERATIONSThermal Derating MECHANICAL DRAWING Pin SpecificationName FunctionPART NUMBERING SYSTEM WARRANTYMODEL LIST EFF @ 100% LOAD