Delta Electronics Delphi Series V48SR - Manual (Page 4)

DS_V48SR15004_06122007 4
ELECTRICAL CHARACTERISTICS CURVES
For Negative Remote On/Off Logic
Figure 4: Turn-on transient at full rated load current (resistive
load) (5 ms/div). Vin=48V. Top Trace: Vout, 5.0V/div; Bottom
Trace: ON/OFF input, 2V/div Figure 5: Turn-on transient at zero load current (5 ms/div).
Vin=48V. Top Trace: Vout: 5.0V/div, Bottom Trace: ON/OFF
input, 2V/div
For Positive Remote On/Off Logic
Figure 6: Turn-on transient at full rated load current (resistive
load) (5 ms/div). Vin=48V. Top Trace: Vout, 5.0V/div; Bottom
Trace: ON/OFF input, 2V/div Figure 7: Turn-on transient at zero load current (5 ms/div).
Vin=48V. Top Trace: Vout, 5.0V/div; Bottom Trace: ON/OFF
input, 2V/div
TBD
Figure 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 (200mV/div, 200us/div), Bottom Trace: Iout (2A/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 9: Output voltage response to step-change in load
current (75%-50%-75% of Io, max; di/dt = 2.5A/µs). Load cap:
470µF, 35m
Ω ESR solid electrolytic capacitor and 1µF ceramic
capacitor. Top Trace: Vout (50mV/div, 200us/div), Bottom Trace:
Iout (5A/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