GE Industrial Solutions 2 × 12A Digital Dual Output MicroDLynx - Manual (Page 9)

GE
Datasheet
2 × 12A Digital Dual MicroDlynx TM : Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
February 14, 2014 ©2014 General Electric Corporation. All rights reserved. Page 9
Characteristic Curves
The following figures provide typical characteristics for the 2 × 12A Digital Dual MicroDlynx TM at 1.8Vo and 25 o C.
EFFI
CI
EN
CY
, η
(%
)
OUTPUT
CU
RRENT, 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.
OU
TP
U
T V
O
LT
AG
ES
V
O
(V
) (3
0m
V/
di
v)
O
U
TPU
T
CURR
EN
T,
O
U
TPUT
VO
LTA
G
E
I O
(A
) (5Adi
v)
V
O
(20
m
V/
di
v)
TIME, t (1 μs/div) TIME, t (20 μs /div)
Figure 15. Typical output ripple and noise (C
O
=
2×0.1uF+2×47uF ceramic, V
IN
= 12V, I
o
= I
o1,max,
I
o2,max
).
Figure 16. Transient Response to Dynamic Load Change on
one output from 50% to 100% at 12Vin, Cout =
3x47uF+2x330uF, CTune = 1800pF & RTune = 300Ω
O
U
TP
UT VO
LT
AG
ES
O
N
/OF
F
VO
LTA
G
E
V O
(V
) (
50
0m
V/
di
v)
V
ON/O
FF
(V
) (5
V/
di
v)
O
U
TP
UT VO
LT
AG
ES
INP
U
T
VO
LT
AG
E
V O
(V
) (
50
0m
V/
di
v)
V
IN
(V
) (1
0V
/d
iv
)
TIME, t (2ms/div) TIME, t (2ms/div)
Figure 17. Typical Start-up Using On/Off Voltage (V
IN
= 12V, I
o
= I
o1,max,
I
o2,max
).
Figure 18. Typical Start-up Using Input Voltage (V
IN
= 12V, I
o
=
I
o1,max,
I
o2,max
).
70
75
80
85
90
95
100
2x0 2x2 2x4 2x6 2x8 2x10 2x12
Vin=4.5V
Vin=14V Vin=12V
0
2
4
6
8
10
12
14
55 65 75 85
1.0m/s
(200LFM)
0.5m/s
(100LFM)
NC
Derating curve applies
to Both Outputs