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

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 × 12AOutput Current
February 14, 2014 ©2014 General Electric Corporation. All rights reserved. Page 12
Characteristic Curves
The following figures provide typical characteristics for the 2 × 12A Digital Dual MicroDlynx TM at 5Vo 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 31. Converter Efficiency versus Output Current.
Figure 32. 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
CU
RRENT,
O
U
TPU
T VO
LT
AG
E
I O
(A
) (5
Ad
iv
)
V
O
(5
0m
V/
di
v)
TIME, t (1 μs/div) TIME, t (20 μs /div)
Figure 33. 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 34. Transient Response to Dynamic Load Change on
one output from 50% to 100% at 12Vin, Cout=6x47uF,
CTune=470pF & RTune=300Ω
O
U
TP
UT VO
LT
AG
ES
ON/O
FF
V
O
LT
AG
E
V
O
(V
) (2V/
di
v)
V
ON
/OF
F
(V
) (5
V/
di
v)
O
U
TPU
T VO
LTA
G
ES
IN
PU
T
VO
LT
AG
E
V
O
(V
) (
2V
/d
iv
)
V
IN
(V
) (10V
/div)
TIME, t (2ms/div) TIME, t (2ms/div)
Figure 35. Typical Start-up Using On/Off Voltage (V
IN
= 12V, I
o
= I
o1,max,
I
o2,max
).
Figure 36. 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=7V
Vin=14V
Vin=12V