Delta Electronics Series H48SV manual Electrical Characteristics Curves, Copper Strip, Scope, Load

Page 6

Copper Strip

ELECTRICAL CHARACTERISTICS CURVES

Figure 11: Input Terminal Ripple Current, ic, at full rated output current and nominal input voltage with 12µH source impedance and 33µF electrolytic capacitor (200 mA/div).

Figure 12: Input reflected ripple current, is, through a 12µH source inductor at nominal input voltage and rated load current (20 mA/div).

Vo(+)

Copper Strip

10u	1u	SCOPE	RESISTIVE
			LOAD

Vo(-)

Figure 13: Output voltage noise and ripple measurement test setup

6

Image 6

Contents APPLICATIONS FEATURESOPTIONS DATASHEET DSH48SV0502008102007OUTPUT CHARACTERISTICS TECHNICAL SPECIFICATIONSINPUT CHARACTERISTICS DYNAMIC CHARACTERISTICSELECTRICAL CHARACTERISTICS CURVES For Negative Remote On/Off Logic For Positive 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 18 Output current vs. ambient temperature and air THERMAL CURVES NO HEATSINKFigure 19 Power dissipation vs. ambient temperature and air velocity V in=75VDESIGN CONSIDERATIONS Safety ConsiderationsSoldering and Cleaning Considerations Input Source ImpedanceOver-Voltage Protection FEATURES DESCRIPTIONSOver-Current Protection Over-Temperature ProtectionFEATURES DESCRIPTIONS CON Output Voltage Adjustment TRIMThermal Testing Setup THERMAL CONSIDERATIONSThermal Derating Name Pin SpecificationMECHANICAL DRAWING FunctionMODEL LIST WARRANTYPART NUMBERING SYSTEM EFF @ 100% LOAD