Delta Electronics F48SA manual Electrical Characteristics Curves

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Figure 12: Output voltage noise and ripple measurement test setup

ELECTRICAL CHARACTERISTICS CURVES

Figure 10: Input Terminal Ripple Current, ic, at full rated output current and nominal input voltage with 15µH source impedance and 220µF electrolytic capacitor (1A/div).

Figure 11: Input reflected ripple current, is, through a 15µH source inductor at nominal input voltage and rated load current (10 mA/div)

Vo(+)

Vo(-)

Copper Strip

10u	1u	SCOPE	RESISTIVE
			LOAD

Figure 12: Output voltage noise and ripple measurement test setup

DS_F48SA28025_12072007

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Contents APPLICATIONS FEATURESOPTIONS DATASHEET DSF48SA2802512072007OUTPUT CHARACTERISTICS TECHNICAL SPECIFICATIONSINPUT CHARACTERISTICS DYNAMIC CHARACTERISTICS48Vin ELECTRICAL CHARACTERISTICS CURVES36Vin 75VinFor Negative Remote On/Off Logic For Positive Remote On/Off LogicFigure 7 Output voltage response to step-change in load Figure 12 Output voltage noise and ripple measurement test setup Figure 13 Output voltage ripple at nominal input voltage and rated load current 100 mV/div. Load capacitance470uF aluminum, 1µF ceramic capacitor and 10µFlow ESR capacitor. Bandwidth 20 MHz. Scope measurement should be made using a BNC cable length shorter than 20 inches. Position the load between 51 mm to 76 mm 2 inches to 3 inches from the module DESIGN CONSIDERATIONS Safety ConsiderationsSoldering and Cleaning Considerations Input Source ImpedanceOver-Voltage Protection FEATURES DESCRIPTIONSOver-Current Protection Over-Temperature ProtectionFEATURES DESCRIPTIONS CON Output Voltage Adjustment TRIMTHERMAL CURVES Thermal Testing SetupTHERMAL CONSIDERATIONS Thermal DeratingPin No Pin SpecificationMECHANICAL DRAWING NameMODEL LIST WARRANTYPART NUMBERING SYSTEM MODEL NAME