Datasheet

DS_DIM3R3400_08142013 E-mail: [e-mail]
http://www.deltaww.com/dcdc
P6
ELECTRICAL CHARACTERISTICS CURVES
Figure 5: Hold up performance (2mS/div):
CH1: VRTN_OUT reference to –48V_OUT (10V/div)
CH2: HU_CAP (20V/div). .
Test conditions:
(1) Feed A=48Vdc; Feed B=0Vdc
(2) Output power=300W
(3) C2=220uF, C_hold=1000uF
Figure 6: -48V_ALARM with loss of Feed (10mS/div):
CH1: VinA (VRTN_AF reference to -48V_AF, 10V/div).
CH2: VinB (VRTN_BF reference to -48V_BF, 10V/div).
CH3: ALARM (2V/div)
Test conditions:
(1) Feed B turn off from 48Vdc; Feed A=48Vdc.
(2) Output power=400W, I(3.3V)=3.6A,
I(5.0V)=0A.
(3) C2=220uF, C_hold=1000uF
Figure 7: Efficiency vs. load current for minimum, nominal, and
maximum input voltage at 25°C:
Test conditions:.
(1) I(3.3V)=0A; I(5.0V)=0A;
(2) C2=220uF, C_hold=1000uF
(3)Po( VRTN_OUT ref to -48V_OUT)from 40W to 400W
Figure 8: 3.3V and 5.0V start up waveform (20mS/div):
CH1: VinA (VRTN_A referenced to -48V_AF, 50V/div).
CH2: V(3.3V) (1V/div);
CH3: V(5.0V) (1V/div)
Test conditions:
(1) Feed A=48Vdc; Feed B=0Vdc
(2) I(VRTN_OUT)=1A,I(3.3V)=3.6A,
I(5.0V)=0.15A
(3) C2=220uF, C_hold=1000uF
CH2
CH3
CH1
CH2
CH1
CH1
CH2
CH3