GE Industrial Solutions 12V TLynx 20A - Manual (Page 8)

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 8
Characteristic Curves (continued)
The following figures provide typical characteristics for the 12V TLynx TM at 1.2Vo and at 25 o C.
EFFICIE
N
C
Y,
η
(%
)
70
75
80
85
90
95
0 5 10 15 20
Vin=14V
Vin=12V
Vin=4.5V
OUTPUT CUR
REN
T, Io
(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 7. Converter Efficiency versus Output Current.
Figure 8. Derating Output Current versus Ambient
Temperature and Airflow.
OUT
PU
T V
O
LT
AGE
V
O
(V
) (2
0m
V/
di
v)
OU
TP
U
T C
U
RR
EN
T,
OU
TP
U
T V
O
LT
AG
E
I
O
(A
) (
5A
div
)
V
O
(V) (200
mV/di
v)
TIME, t (1 μs/div) TIME, t (20 μs /div)
Figure 9. Typical output ripple and noise (V
IN
= 12V, I
o
= I
o,max
). Figure 10. Transient Response to Dynamic Load Change from
0% to 50% to 0%.
O
N
/O
FF VO
LT
AG
E
O
U
TPU
T V
O
LT
AG
E
V ON/OF
F
(V
) (5V/
div
)
V
O
(V) (500
mV/di
v)
OUT
PU
T V
O
LT
AGE
I
N
PU
T
VO
LT
AG
E
V
O
(V)
(1
V/d
iv)
V IN
(V) (
5V/
di
v)
TIME, t (1 ms/div) TIME, t (1 ms/div)
Figure 11. Typical Start-up Using On/Off Voltage (I
o
= I
o,max
).
Figure 12. Typical Start-up Using Input Voltage (V
IN
= 12V, I
o
=
I
o,max
).