GE Industrial Solutions 2 × 12A Digital Dual Output MicroDLynx - Manual (Page 8)

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 8
Characteristic Curves
The following figures provide typical characteristics for the 2 × 12A Digital Dual MicroDlynx TM at 1.2Vo and 25 o C.
EFF
ICIE
N
CY
, η
(%
)
OUTPUT
CU
RRENT, Io
(A
)
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 VOLT
AG
ES
V
O
(V) (30mV
/div)
O
U
TPU
T C
U
RRE
N
T,
O
U
TPU
T
VO
LTA
G
E
I
O
(A
) (
5Adi
v)
V
O
(20
m
V/d
iv)
TIME, t (1 μs/div) TIME, t (20 μs /div)
Figure 9. 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 10. Transient Response to Dynamic Load Change on
one output from 50% to 100% at 12Vin,
Cout=3x47uF+3x330uF, CTune=2700pF & RTune=300Ω
O
U
TP
UT VO
LT
AG
ES
O
N
/OF
F
VO
LTA
G
E
V O
(V) (500
mV/d
iv
)
V
ON
/O
FF
(V
) (
5V
/d
iv
)
O
U
TPU
T
VO
LTA
G
ES
IN
PU
T VO
LT
AG
E
V O
(V) (500
mV/
di
v)
V
IN
(V
) (10V
/div)
TIME, t (2ms/div) TIME, t (2ms/div)
Figure 1. Typical Start-up Using On/Off Voltage (V
IN
= 12V, I
o
= I
o1,max,
I
o2,max
).
Figure 12. Typical Start-up Using Input Voltage (V
IN
= 12V, I
o
=
I
o1,max,
I
o2,max
).
50
55
60
65
70
75
80
85
90
95
2x0 2x2 2x4 2x6 2x8 2x10 2x12
Vin=4.5V
Vin=14V
Vin=12V
0
2
4
6
8
10
12
55 60 65 70 75 80 85
NC
0.5m/s
(100LFM)
Derating curve applies
to Both Outputs