Delta Electronics H48SL manual Electrical Characteristics Curves

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Figure 14: Output voltage ripple at nominal input voltage and

ELECTRICAL CHARACTERISTICS CURVES

 

1.6

 

 

 

 

 

 

 

 

 

 

 

1.4

 

 

 

 

 

 

 

 

 

 

 

1.2

 

 

 

 

 

 

 

 

 

 

(V)

1.0

 

 

 

 

 

 

 

 

 

 

VOLTAGE

 

 

 

 

 

 

 

 

 

 

0.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTPUT

0.6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.4

 

48Vin

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.2

 

 

 

 

 

 

 

 

 

 

 

0.0

 

 

 

 

 

 

 

 

 

 

 

0

10

20

30

40

50

60

70

80

90

100

LOAD CURRENT (A)

Figure 14: Output voltage ripple at nominal input voltage and

rated load current (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 to 76 mm (2 inches to 3 inches) from the module.

Figure 15: Output voltage vs. load current showing typical current limit curves and converter shutdown points.

DS_H48SL1R560_10302006

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Contents DATASHEET DSH48SL1R56010302006 FEATURESOPTIONS APPLICATIONSDYNAMIC CHARACTERISTICS TECHNICAL SPECIFICATIONSINPUT CHARACTERISTICS OUTPUT CHARACTERISTICSELECTRICAL CHARACTERISTICS CURVES Figure 7 Turn-on transient at zero load current 2 ms/div. Top For Negative Remote On/Off LogicFor Positive Remote On/Off Logic Figure 5 Turn-on transient at zero load current 2 ms/div. TopFigure 8 Output voltage response to step-change in load current 75%-50%-75% of Io, max di/dt = 0.1A/µs. 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 inches. Position the load between 51 mm to 76 mm 2 inches to 3 inches from the module Figure 13 Output voltage noise and ripple measurement test setup Figure 14 Output voltage ripple at nominal input voltage and THERMAL CURVES NO HEATSINK, EITHER ORIENTATION Input Source Impedance Safety ConsiderationsSoldering and Cleaning Considerations DESIGN CONSIDERATIONSOver-Temperature Protection FEATURES DESCRIPTIONSOver-Current Protection Over-Voltage ProtectionOutput Voltage Adjustment TRIM FEATURES DESCRIPTIONS CON⎝ ∆% THERMAL CONSIDERATIONS Thermal Testing SetupThermal Derating Function Pin SpecificationMECHANICAL DRAWING NameMODEL NAME WARRANTYPART NUMBERING SYSTEM MODEL LIST