GE Industrial Solutions 12A Digital PicoDLynx - Manual (Page 11)

GE
Data Sheet
12A Digital PicoDLynx TM : Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 12A Output Current
November 19, 2013
©2013 General Electric Corporation.
All rights reserved.
Page 11
Characteristic Curves
The following figures provide typical characteristics for the 12A Digital PicoDLynx TM at 3.3Vo and 25 o C.
EFFICIENCY,
η
(%)
O
U
TP
UT
CU
RR
EN
T,
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.
OUTPU
T V
O
LTAG
E
V
O
(V) (20mV
/div)
O
U
TPU
T
CU
RRE
N
T,
O
U
TPU
T VO
LT
AG
E
I
O
(A
)
(1
0A
di
v)
V
O
(V
) (5
0m
V/
di
v)
TIME, t (1 μs/div) TIME, t (20 μs /div)
Figure 27. Typical output ripple and noise (C
O
=22μF ceramic,
V
IN
= 12V, I
o
= I
o,max,
).
Figure 28 Transient Response to Dynamic Load Change from
50% to 100% at 12Vin, Cout=
1x47uF+1x330uF,CTune=2700pF & RTune=330ohms
O
U
TPU
T
VO
LTA
G
E
O
N
/OFF
V
O
LT
AGE
V O
(V
) (
1V
/di
v)
V
ON
/OFF
(V) (5V
/div
)
OUT
PU
T V
O
LT
AG
E
IN
PU
T V
O
LT
AG
E
V O
(V
) (
1V
/di
v)
V
IN
(V
) (
5V
/di
v)
TIME, t (2ms/div) TIME, t (2ms/div)
Figure 29. Typical Start-up Using On/Off Voltage (I
o
= I
o,max
).
Figure 30. Typical Start-up Using Input Voltage (V
IN
= 12V, I
o
=
I
o,max
).
70
75
80
85
90
95
100
0 2 4 6 8 10 12
Vin=4.5V
Vin=14V
Vin=12V
0
2
4
6
8
10
12
55 65 75 85 95 105
2m/s
(400LFM)
1.5m/s
(300LFM)
1m/s
(200LFM)
0.5m/s
(100LFM)
NC
Standard
Part (85 °C)
Ruggedized (D)
Part (105 °C)