Delta Electronics H48SV manual Electrical Characteristics Curves

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Figure 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 (10A/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.

ELECTRICAL CHARACTERISTICS CURVES

Figure 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 (10A/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.

Figure 9: Output voltage response to step-change in load current (75%-50%-75% of Io, max; di/dt = 2.5A/µs). Load cap: 470µF, 35mΩ ESR solid electrolytic capacitor and 1µF ceramic capacitor. Top Trace: Vout (100mV/div), Bottom Trace: Iout (10A/div). 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.

Figure 10: Test set-up diagram showing measurement points for Input Terminal Ripple Current and Input Reflected Ripple Current.

Note: Measured input reflected-ripple current with a simulated source Inductance (LTEST) of 12µH. Capacitor Cs offset possible battery impedance. Measure current as shown above.

DS_H48SV05030_08102007

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Contents OPTIONS FEATURESAPPLICATIONS DATASHEET DSH48SV0503004262006INPUT 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 10A/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 Figure 13 Output voltage noise and ripple measurement test setup Figure 14 Output voltage ripple at nominal input voltage Vin=48V and rated load current Io=30A 20 mV/div. Load capacitance 1µF ceramic capacitor and 10µF tantalum capacitor. Bandwidth 20 MHz. Scope measurement should be made using a BNC cable length shorter than 20 inches. Position the load between 51 mm and 76 mm 2 inches and 3 inches from the module Soldering and Cleaning Considerations Safety ConsiderationsDESIGN CONSIDERATIONS Input Source ImpedanceOver-Current Protection FEATURES DESCRIPTIONSOver-Voltage Protection Over-Temperature ProtectionOutput Voltage Adjustment TRIM FEATURES DESCRIPTIONS CONTHERMAL CONSIDERATIONS Thermal Testing SetupTHERMAL CURVES Thermal DeratingMECHANICAL DRAWING Pin SpecificationName FunctionPART NUMBERING SYSTEM WARRANTYMODEL LIST EFF @ 100% LOAD