GE Industrial Solutions 12V TLynx 20A - Manual (Page 9)

GE
Data Sheet
12V TLynx TM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 9
Characteristic Curves (continued)
The following figures provide typical characteristics for the 12V TLynx TM at 1.8Vo and at 25 o C.
EFFIC
IE
N
CY,
η
(
%
)
70
75
80
85
90
95
0 5 10 15 20
Vin=14V
Vin=12V
Vin=4.5V
OUT
PUT
CURRENT
, I
o (
A)
4
6
8
10
12
14
16
18
20
22
25 35 45 55 65 75 85 95 105
Standard Part
(85°C)
Ruggedized (D)
Part (105 ° C)
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
2m/s
(400LFM)
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.
OUTPUT
V
O
LTAGE
V
O
(V
) (20m
V/
di
v)
OUTPUT
CU
RRE
NT,
OUTPU
T
VO
LTAG
E
I
O
(A
) (
5Adi
v)
V
O
(V
) (2
00
m
V/
di
v)
TIME, t (1 μs/div) TIME, t (20 μs /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
0% to 50% to 0%.
O
N
/OFF
VOLTAG
E
OUT
PU
T V
O
LT
AGE
V ON
/O
FF
(V
) (
5V
/di
v)
V
O
(V
) (
50
0m
V/
di
v)
O
U
TPU
T
VO
LTA
G
E
I
N
PU
T
VO
LTA
G
E
V
O
(V
) (1V/
div
)
V
IN
(V
) (
5V
/di
v)
TIME, t (1 ms/div) TIME, t (1 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
).