GE Industrial Solutions 3A Digital PicoDLynx - Manual (Page 9)

GE
Data Sheet
3A Digital PicoDLynx TM : Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 3A Output Current
April 29, 2013 ©2012 General Electric Company. All rights reserved. Page 9
Characteristic Curves
The following figures provide typical characteristics for the 3A Digital PicoDLynx TM at 1.8Vo 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 13. Converter Efficiency versus Output Current.
Figure 14. Derating Output Current versus Ambient
Temperature and Airflow.
OUT
PU
T V
O
LT
AGE
V
O
(V
) (1
0m
V/
di
v)
O
U
TPU
T C
U
RRENT,
O
U
TPU
T
VO
LT
AG
E
I O
(A
)
(1
Adi
v)
V
O
(V
) (10m
V/
di
v)
TIME, t (1 μs/div) TIME, t (20 μs /div)
Figure 15. Typical output ripple and noise (C
O
=10μF ceramic,
V
IN
= 12V, I
o
= I
o,max,
).
Figure 16. Transient Response to Dynamic Load Change from
50% to 100% at 12Vin, Cout= 1x47uF +1x330uF, CTune=10nF
& RTune=267
O
U
TPUT
VO
LTA
G
E
O
N
/O
FF
V
O
LTA
G
E
V
O
(V
) (5
00
m
V/
di
v)
V
ON
/OF
F
(V) (5V/
di
v)
O
U
TPU
T
VO
LT
AG
E
IN
PU
T
VO
LT
AG
E
V
O
(V
) (5
00
m
V/
di
v)
V
IN
(V)
(5
V/di
v)
TIME, t (2ms/div) TIME, t (2ms/div)
Figure 17. Typical Start-up Using On/Off Voltage (I
o
= I
o,max
).
Figure 18. Typical Start-up Using Input Voltage (V
IN
= 12V, I
o
=
I
o,max
).
60
65
70
75
80
85
90
95
0 0.5 1 1.5 2 2.5 3
Vin=3.3V
Vin=14V
Vin=12V
1.5
2.0
2.5
3.0
3.5
55 65 75 85 95 105
0.5m/s
(100LFM)
NC
Standard Part
(85 °C)
Ruggedized (D)
Part (105 °C)