ELECTRICAL CHARACTERISTICS CURVES

0

0

Figure 11: Input Terminal Ripple Current, ic, at full rated output current and nominal input voltage with 12µH source impedance and 33µF electrolytic capacitor (100mA/div, 1us/div)

Copper Strip

Vo(+)

10u

1u

SCOPE

RESISTIVE

 

LOAD

 

 

 

Vo(-)

Figure 12: Input reflected ripple current, is, through a 12µH source inductor at nominal input voltage and rated load current (20 mA/div, 1us/div)

Figure 13: Output voltage noise and ripple measurement test setup

0

Figure 14: Output voltage ripple at nominal input voltage and rated load current (Io=7A)(20 mV/div, 1us/div)

Load capacitance: 1µF ceramic capacitor and 10µF tantalum

capacitor. Bandwidth: 20 MHz. Scope measurements 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_S48SP05007_05222008

6

Page 6
Image 6
Delta Electronics S48SP manual Output voltage noise and ripple measurement test setup