GE Industrial Solutions KSTW002A5B Barracuda Series - Manual (Page 5)

GE Data Sheet
KSTW002A5B Barracuda* Series; DC-DC Converter Power Modules
36-75Vdc Input; 12Vdc, 2.5A Output
September 26, 2013 ©2013 General Electric Corporation. All rights reserved. Page 5
Characteristic Curves
The following figures provide typical characteristics for the KSTW002A5B (12.0V, 2.5A) at 25 o C. The figures are identical for either
positive or negative remote On/Off logic.
E
FF
ICI
EN
CY
,

(%)
IN
PUT
CUR
RE
N
T,
I IN
(A
)
OUTPUT CURRENT, I
O
(A) INPUT VOLTAGE, V
IN
(V)
Figure 1. Converter Efficiency versus Output Current. Figure 2. Converter Input Current versus Input Voltage.
O
U
TP
U
T
VO
LT
AG
E
V
O
(V
) (
10
0m
V/
di
v)
O
UTP
UT
CUR
RE
N
T
O
UTP
UT
V
O
LTAG
E
Io(A
) (
1A
/d
iv
)
V
O
(V
) (
20
0m
V/
di
v)
TIME, t (2  s/div) TIME, t (200µs/div)
Figure 3. Typical output ripple and noise (I
o
= I
o,max
). Figure 4. Transient Response to 0.1A/µS Dynamic Load
Change from 50% to 75% to 50% of full load, Vin=48V,
C
O
>100μF
O
n/
O
ff
VO
LTAG
E
O
UTP
UT
V
O
LTAG
E
V
O
n/
O
ff
(V
) (
2V
/d
iv)
V
O
(V
) (
5V
/d
iv
)
IN
PUT
V
O
LTAG
E
O
UTP
UT
VO
LTAG
E
V
IN
(V
) (
20
V/
div)
V
O
(V
) (
5V
/d
iv
)
TIME, t (10ms/div) TIME, t (10ms/div)
Figure 5.Typical Start-up Using Remote On/Off, negative
logic version shown (V
IN
= 48V, Io = I
o,max
).
Figure 6. Typical Start-up Using Input Voltage (V
IN
= 48V, I
o
=
I
o,max
).