GE Industrial Solutions 2 × 12A Digital Dual Output MicroDLynx - Manual (Page 11)

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 11
Characteristic Curves
The following figures provide typical characteristics for the 2 × 12A Digital Dual MicroDlynx TM at 3.3Vo 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 25. Converter Efficiency versus Output Current.
Figure 26. 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
TP
UT
CU
RR
EN
T,
OUT
PUT
V
O
LT
AG
E
I O
(A
) (5Ad
iv
)
V
O
(V) (50mV
/div)
TIME, t (1 μs/div) TIME, t (20 μs /div)
Figure 27. Typical output ripple and noise (C
O
=
2x0.1uF+2x47uF ceramic, V
IN
= 12V, I
o
= I
o1,max,
I
o2,max
).
Figure 28 Transient Response to Dynamic Load Change on
one output from 50% to 100% at 12Vin,
Cout=3x47uF+1x330uF, CTune = 1200pF & RTune = 300Ω
O
U
TPU
T
VO
LT
AG
ES
O
N
/O
FF
V
O
LTA
G
E
V O
(V
) (
1V
/di
v)
V ON/
O
FF
(V
) (5V/
div)
O
U
TPU
T
VO
LTA
G
ES
IN
PU
T
VO
LT
AG
E
V
O
(V)
(1
V/d
iv
)
V IN
(V)
(10V/
div
)
TIME, t (2ms/div) TIME, t (2ms/div)
Figure 29. Typical Start-up Using On/Off Voltage (V
IN
= 12V, I
o
= I
o1,max,
I
o2,max
).
Figure 30. 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
55 65 75 85
1.5m/s
(300LFM)
1m/s
(200LFM)
0.5m/s
(100LFM)
NC
Derating curve applies
to Both Outputs