Datasheet

DS_DIM3R3400_08142013 E-mail: [e-mail]
http://www.deltaww.com/dcdc
P5
ELECTRICAL CHARACTERISTICS CURVES
Figure 1: Input voltage turn-on threshold (50mS/div):
CH1: Vin (VRTN_A reference to -48V_A, 20V/div).
CH2: Iin (-48V_A, 1A/div).
CH3: VRTN_OUT reference to –48V_OUT (20V/div).
CH4: 3.3V(2V/div)
Test conditions:
(1) Feed A=48Vdc; Feed B=0Vdc
(2) I(VRTN_OUT)=0A, I(3.3V)=0A,I(5.0V)=0A.
(3) C2=470uF, C_hold=1000uF
Figure 2: Input voltage turn-off threshold (2mS/div):
CH1: Vin (VRTN_AF reference to -48V_A, 20V/div).
CH2: Iin (-48V_A, 1A/div).
CH3: VRTN_OUT reference to. –48V_OUT (20V/div).
CH4: 3.3V(2V/div)
Test conditions:
(1) Feed A=37Vdc ; Feed B=0Vdc
(2) I(VRTN_OUT)=1A,I(3.3V)=0A,I(5.0V)=0A.
(3) C2=220uF, C_hold=1000uF
Figure 3: Inrush current (20mS/div):
CH1: Vin (VRTN_AF reference to -48V_AF, 20V/div).
CH2: Iin (-48V_AF, 1A/div).
CH3: VRTN_OUT reference to –48V_OUT (20V/div).
Test conditions:
(1) Feed A=48Vdc, Feed B=0Vdc.
(2) I(VRTN_OUT)=0A, I(3.3V)=0A, I(5.0V)=0A.
(3) C2=470uF, C_hold=1000uF
Figure 4: Oring for one feed loss (500µS/div):
CH1: IinA (1A/div)
CH2: IinB (1A/div).
CH3: VRTN_OUT reference to –48V_OUT (10V/div).
CH4: 3.3V (1V/div).
Test conditions:
(1) Feed A=40V, Feed B=48V;
(2) VRTN_OUT power=300W, I(3.3V)=3.6A,
I(5.0V)=0A.
(3) C2=220uF, C_hold=1000uF
CH 1
CH 2
CH 3
CH4
CH 1
CH 2
CH 3
CH 3
CH 1
CH 2
CH 1
CH 2
CH 3
CH 4
CH4