GE Industrial Solutions GigaTLynx - Manual (Page 7)

Data Sheet
September 7, 2011 GigaTLynx TM SMT Non-isolated Power Modules:
4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output
LINEAGE POWER 7
Characteristic Curves
The following figures provide typical characteristics for the 12V Giga TLynx TM 50A at 1.8 Vo and at 25 o C.
EF
FI
C
IEN
C
Y
, η
(%)
O
U
TPU
T
CUR
RE
NT
, Io
(A
)
OUTPUT CURRENT, I
O
(A) AMBIENT TEMPERATURE, T
A
O C
Figure 13. Converter Efficiency versus Output Current.
Figure 14. Derating Output Current versus Ambient
Temperature and Airflow.
OUT
P
UT
VO
LT
AG
E
V
O
(V
) (1
0m
V
/d
iv
)
OUT
P
UT
CURR
EN
T
,
OU
T
P
U
T
VO
LT
AG
E
I
O
(A
)
(20Adi
v)
V
O
(V
) (2
0m
V
/d
iv)
TIME, t (1 μs/div) TIME, t (0.1ms /div)
Figure 15. Typical output ripple and noise (V
IN
= 12V, I
o
=
I
o,max
).
Figure 16. Transient Response to Dynamic Load
Change from 50% to 100% at 12Vin, Cext =5x47uF+
+8x330uFpolymer,CTune=47nF,RTune=220ohms
OUT
P
UT
V
O
LT
A
G
E
O
N
/OF
F
V
O
LT
A
G
E
V
O
(V
)
(5
00
m
V
/d
iv
)
V ON
/O
F
F
(V
)
(5
V
/d
iv)
O
U
T
P
UT
V
O
LT
A
G
E
I
N
P
U
T
VO
LT
AG
E
V
O
(
V
) (5
00
m
V
/d
iv
)
V
IN
(V)
(5
V
/di
v)
TIME, t (2 ms/div) TIME, t (2 ms/div)
Figure 17. Typical Start-up Using On/Off Voltage (I
o
=
I
o,max
).
Figure 18. Typical Start-up Using Input Voltage (V
IN
=
12V, I
o
= I
o,max
).
70
75
80
85
90
95
100
0 10 20 30 40 50
Vin=12V
Vin=4.5V
Vin=14V
10
15
20
25
30
35
40
45
50
55
35 45 55 65 75 85 95 105
2m/s
(400LFM)
1.5m/s
(300LFM)
1m/s
(200LFM)
0.5m/s
(100LFM)
NC
Output Voltage set to 2V for thermal derating curve
Standard Part
(85 C)
Ruggedized (D)
Part (105 C)