GE Industrial Solutions Austin MegaLynx - Manual (Page 7)

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 7
Characteristic Curves
The following figures provide typical characteristics for the ATS025A0X (1.8V, 25A) at 25 o C.
EF
F
IC
IEN
C
Y
, η
(%)
72%
75%
78%
81%
84%
87%
90%
93%
96%
0 5 10 15 20 25
V IN =14.0V
V IN = 12.0V
V IN = 6.0V
O
U
TPU
T
CUR
RE
NT,
Io
(A
)
0
5
10
15
20
25
30
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 7. Converter Efficiency versus Output Current. Figure 10. Derating Output Current versus Local
Ambient Temperature and Airflow ((V
IN
= V
IN,NOM
).
O
U
T
P
U
T
VOLTAGE
V
O
(V)
(20m
V
/d
iv
)
On
/Off
VO
LTA
G
E
OU
TPU
T
VOLTAG
E
V
O
n/o
ff
(
V
) (
5
V
/d
iv
)
V
O
(V
) (0
.5
V
/d
iv
)
TIME, t (1 μs/div) TIME, t (2ms/div)
Figure 8. Typical output ripple and noise (V
IN
= V
IN,NOM
,
I
o
= I
o,max
).
Figure 11. Typical Start-up Using Remote On/Off (V
IN
=
V
IN,NOM
, I
o
= I
o,max
).
OU
TPU
T
CU
RR
E
N
T
,
OU
T
P
U
T
VO
LT
AG
E
I O
(A
)
(5
A/
div)
V
O
(V
) (
100mV
/d
iv)
IN
PU
T
V
O
LTA
G
E
O
U
TP
U
T
V
O
LTA
G
E
V
IN
(V
) (5V/
di
v)
V
O
(V
)
(0
.5
V
/di
v)
TIME, t (5 μs /div) TIME, t (2ms/div)
Figure 9. Transient Response to Dynamic Load
Change from 0% to 50% to 0% of full load. Figure 12. Typical Start-up Using Input Voltage (V
IN
=
V
IN,NOM
, I
o
= I
o,max
).