GE Industrial Solutions KHHD002A5B Hammerhead Series - Manual (Page 5)

GE Data Sheet
KHHD002A5B Hammerhead™ Series; DC-DC Converter Power Modules
18-75Vdc Input; 12Vdc, 2.5A Output
September 26, 2013 ©2012 General Electric Corporation. All rights reserved. Page 5
Characteristic Curves
The following figures provide typical characteristics for the KHHD002A5B (12.0V, 2.5A) at 25 o C. The figures are identical for either
positive or negative remote On/Off logic.
EFFIC
IENCY,
η
(%)
IN
PU
T CURREN
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.
OUT
PU
T V
O
LT
AGE
V
O
(V
) (1
00
m
V/
di
v)
OUTPUT CURREN
T OUTPUT VO
LTA
G
E
Io(A)
(1
A/div
)
V O
(V
) (2
00
m
V/d
iv
)
TIME, t (2 μs/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=24V,
C
O
>100μF
O
n/Of
f V
O
LTA
G
E
O
UTP
U
T V
O
LT
AG
E
V
On/Of
f
(V
) (2V/div)
V
O
(V)
(5
V/di
v)
INPUT VOL
TAGE
OUTPUT VO
LTA
G
E
V
IN
(V) (20V/div
)
V
O
(V)
(5
V/div
)
TIME, t (10ms/div) TIME, t (10ms/div)
Figure 5.Typical Start-up Using Remote On/Off, negative
logic version shown (V
IN
= 24V, Io = I
o,max
).
Figure 6. Typical Start-up Using Input Voltage (V
IN
= 24/48V,
I
o
= I
o,max
).
75Vin
48Vin
24Vin
18Vin