Data Sheet
October 5, 2009
SW/SC001/003 Series DC-DC Power Module:
18-36Vdc & 36-75Vdc Input; 3.3-15Vdc Output; 1-3.5A Output Current
Characteristic Curves
(continued)
The following figures provide typical characteristics for the SW003A5F91 (3.3V, 3.5A) at 25ºC. The figures are
identical for either positive or negative Remote On/Off logic.
86
84
82
OUTPUT VOLTAGE
0
0.5
1
1.5
2
2.5
3
3.5
88
EFFICIENCY (%)
80
78
76
74
72
70
V
I
= 36V
V
I
= 54V
V
I
= 75V
OUTPUT CURRENT, I
o
(A)
On/Off VOLTAGE,
V
ON/OFF
(V) (2V/div)
V
O
(V) (1V/div)
TIME, t (1.0ms/div)
Figure 19. Converter Efficiency Vs Load.
4
Figure 22. Typical Start-Up Using Remote On/Off,
negative logic version shown.
OUTPUT VOLTAGE, OUTPUTCURRENT
OUTPUT CURRENT, Io (A)
3
3.0m/ s (600ft /min)
2
2.0m/s (400ft/ min)
1.0m/s (200f t/min)
Natural Convection
1
0
0
1
0
20
30
40
50
60
70
80
O
90
1
00
10
1
V
O
(V) (50mV/div),
I
O
(A) (0.5A/div)
AMBIENT TEMPERATURE, T
A
C
TIME, t (1.0ms/div)
Figure 20. Derating Output Current versus Local
Ambient Temperature and Airflow.
Figure 23. Transient Response to Dynamic Load
Change from 50% to 75% to 50% of full load.
OUTPUT VOLTAGE,
OUTPUT VOLTAGE
V
O
(V) (20mV/div)
TIME, t (2μs/div)
V
O
(V) (1V/div)
TIME, t (100μs/div)
Figure 21. Typical Output Ripple and Noise, V
IN
=V
IN,
nom
I
O
=80% of I
O, max.
Figure 24. Typical Start-Up Output Voltage Rise
Characteristic.
LINEAGE
POWER
9
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
