GE Industrial Solutions QPW025A0F41_H - Manual (Page 5)

Data Sheet
October 5, 2009
QPW025A0F41/QPW025A0F41-H DC-DC Power Module
36-75Vdc Input; 3.3Vdc Output Voltage; 25A Output Current
LINEAGE POWER 5
Characteristic Curves
The following figures provide typical characteristics for QPW025A0F41/QPW025A0F41-H at 25 O C
0
0.5
1
1.5
2
2.5
3
30 40 50 60 70
Io = 25.0A
Io = 12.5A
Io = 0.0A IN
PU
T
CUR
RE
NT
,(
A
)
INPUT VOLTAGE, V
IN
(V) O
N
/O
F
F
V
O
L
T
AGE
OU
TP
U
T
V
O
LTAG
E
V On
/Of
f
(V
) (5
V
/di
v)
V
o
(V
) (1
V
/di
v)
TIME, t (2 ms/div)
Figure 1. Typical Start-Up (Input Current)
characteristics at room temperature. Figure 4. Typical Start-Up Characteristics from Remote
ON/OFF.
70
75
80
85
90
95
0 5 10 15 20 25
Vin = 75V Vin = 48V
Vin = 36V
EF
FI
CI
EN
C
Y
(
%
)
OUTPUT CURRENT, I
o
(A)
OU
TP
U
T
CUR
RE
N
T
OU
T
P
U
T
V
O
LTAG
E
I O
(
A
) (5
A
/d
iv)
V
O,
(V
)
(2
00
mV
/d
iv
)
TIME, t (100 μs/div)
Figure 2. Converter Efficiency Vs Load at V
o
= 3.3 V. Figure 5. Transient Response to Dynamic Load Change
from 50% to 25% to 50% of full load current.
OUT
P
U
T
VOL
T
A
G
E
V
O
(V
)
(2
0mV
/div)
TIME, t (2 μs/div)
O
U
TPU
T
CURR
EN
T
OUTPU
T
VOLTAG
E
I O
(A)
(5
A
/d
iv)
V
O
(
V
) (2
00
mV
/div
)
TIME, t (100 μs/div)
Figure 3. Typical Output Ripple and Noise at Vin
=48Vdc. Figure 6. Transient Response to Dynamic Load Change
from 75% to 50 % to 75% of full load current.