GE Industrial Solutions Austin MegaLynx - Manual (Page 9)

Data Sheet
April 19, 2011 Austin MegaLynx TM : Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 – 3.63Vdc output; 30A output current
6.0 – 14Vdc input; 0.8 – 5.5Vdc output; 25A output current
LINEAGE POWER 9
Characteristic Curves
The following figures provide typical characteristics for the ATH030A0X (0.8V, 30A) at 25 o C.
EF
F
IC
IEN
C
Y
, η
(%)
68%
71%
74%
77%
80%
83%
86%
89%
92%
0 6 12 18 24 30
V IN =5.5V
V IN = 5.0V
V IN = 4.5V
O
U
TPU
T
CUR
RE
NT,
Io
(A
)
5
10
15
20
25
30
35
20 30 40 50 60 70 80 90
1.0m/s (200 LFM )
0.5m/s (100 LFM )
1.5m/s (300 LFM )
2.0m/s (400 LFM )
OUTPUT CURRENT, I
O
(A) AMBIENT TEMPERATURE, T
A
O C
Figure 19. Converter Efficiency versus Output
Current. Figure 22. Derating Output Current versus Local
Ambient Temperature and Airflow.
OUT
P
UT
VO
LT
AG
E
V
O
(V
) (2
0m
V
/d
iv
)
O
n
/O
ff
V
O
LTAG
E
O
U
TP
U
T
VO
LT
AG
E
V On
/o
ff
(V
) (2
V
/di
v)
V
O
(V
) (0.
5V/di
v)
TIME, t (1 μs/div) TIME, t (2ms/div)
Figure 20. Typical output ripple and noise (V
IN
=
V
IN,NOM
, I
o
= I
o,max
).
Figure 23. Typical Start-up Using Remote On/Off (V
IN
=
V
IN,NOM
, I
o
= I
o,max
).
O
U
T
P
UT
CU
RR
E
N
T
,
O
U
T
P
UT
V
O
LT
A
G
E
I O
(
A
) (1
0A
/d
iv
)
V O
(V
)
(10
0m
V
/d
iv
)
IN
P
U
T
V
O
LT
A
G
E
O
U
T
P
UT
V
O
LT
AG
E
V
IN
(V
) (2V/
di
v)
V
O
(V
)
(0
.5
V
/di
v)
TIME, t (10 μs /div) TIME, t (2ms/div)
Figure 21. Transient Response to Dynamic Load
Change from 0% to 50% to 0% of full load. Figure 24. Typical Start-up Using Input Voltage (V
IN
=
V
IN,NOM
, I
o
= I
o,max
).