Data Sheet
March 19, 2009
EUE Series DC-DC Power Modules:
42-55/42-58Vdc Input; 12Vdc Output; 200/120W
Characteristic Curves
(continued)
The following figures provide typical characteristics for the EUE120B1 (12.0V, 10A) at 25ºC. The figures are identical
for either positive or negative Remote On/Off logic.
ON/OFF VOLTAGE
O
UTPUT VOLTAGE
3.5
3
INPUT CURRENT (A)
2.5
2
1.5
1
0.5
0
35
40
45
Io=12A
Io=6A
Io=0A
50
55
60
INPUT VOLTAGE, V
IN
(V)
V
On/off
(V) (2V/div)
V
O
(V) (5V/div)
TIME, t (5 ms/div)
Figure 9. Typical Input Characteristic at Room
Temperature.
100
95
90
Figure 12. Typical Start-Up Using Remote On/Off,
negative logic version shown.
OUTPUT CURRENT OUTPUT VOLTAGE
I
O,
(A) (2A/div)
V
O
(V) (100mV/div)
EFFICIENCY (%)
85
80
75
70
0
2
Vin=58V
Vin=48V
Vin=42V
4
6
8
10
12
OUTPUT CURRENT, I
o
(A)
TIME, t (500μs/div)
Figure 10. Typical Converter Efficiency Vs. Output
current at Room Temperature.
Figure 13. Typical Transient Response to Step increase
in Output Load from 5.3A to 8.1A at Room Temperature
and 48 Vdc Input; C
o,ext
= 370 µF.
OUTPUT VOLTAGE
V
O
(V) (100mV/div)
OUTPUT CURRENT
I
O,
(A) (2A/div)
42 Vin
OUTPUT VOLTAGE
V
O
(V) (20mV/div)
48 Vin
58 Vin
TIME, t (1μs/div)
TIME, t (500μs/div)
Figure 11. Typical Output Ripple and Noise at Room
Temperature and P
o
= 120W.
Figure 14. Typical Transient Response to Step
decrease in Output Load from 8.1A to 5.3A at Room
Temperature and 48 Vdc Input; C
o,ext
= 370 µF.
LINEAGE
POWER
7
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
