GE Industrial Solutions KHHD004A2B Hammerhead Series - Manual (Page 5)

GE Data Sheet
KHHD004A2B Hammerhead™ Series; DC-DC Converter Power Modules
18-75Vdc Input; 12.0Vdc, 4.2A, 50W Output
April 1, 2013 ©2012 General Electric Company. All rights reserved. Page 5
Characteristic Curves
The following figures provide typical characteristics for the KHHD004A2B (12.0V, 4.2A) at 25 o C. The figures are identical for either
positive or negative remote On/Off logic.
EFFICIENCY,

(
%
)
INPU
T C
U
RR
ENT,
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.
OUTPU
T V
O
LTAG
E
V
O
(V
) (1
00
m
V/
di
v)
OUTPUT C
U
RRENT OUTPUT
VO
LTAGE
Io
(A
) (1A/di
v)
V
O
(V
) (
200m
V/
div)
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=24V,
C
O
>100μF
O
n/O
ff
V
O
LT
AG
E
O
UT
PUT
V
O
LT
AG
E
V On/
O
ff
(V)
(2V/div)
V
O
(V) (5V/
di
v)
INPUT VOL
TAGE
OUTPUT
VO
LTAGE
V
IN
(V
) (20V/
di
v)
V O
(V
) (5
V/
di
v )
TIME, t (10ms/div) TIME, t (10ms/div)
Figure 5.Typical Start-up Using Remote On/Off, negative
logic version shown (V
IN
= 24V or 48V, Io = I
o,max
).
Figure 6. Typical Start-up Using Input Voltage (V
IN
= 48V, I
o
=
I
o,max
).