Data Sheet
March 26, 2008
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
Characteristic Curves
(continued)
The following figures provide typical characteristics for the KW025A0M (1.5V, 25A) at 25
o
C. The figures are identical
for either positive or negative remote On/Off logic.
90
88
86
84
82
80
78
76
74
0
5
10
15
20
25
Vin = 48V
Vin = 75V
30
Vin = 36V
OUTPUT CURRENT, Io (A)
2.0 m/s
(400 lfm)
25
NC
20
0.5 m/s
(100 lfm)
1.0 m/s
(200 lfm)
EFFICIENCY,
η
(%)
15
10
20
30
40
50
60
70
O
80
90
OUTPUT CURRENT, I
O
(A)
AMBIENT TEMPERATURE, T
A
C
Figure 25. Converter Efficiency versus Output
Current.
Figure 28. Derating Output Current versus Local
Ambient Temperature and Airflow.
V
On/off
(V) (2.5V/div)
V
O
(V) (500mV/div)
On/Off VOLTAGE
OUTPUT VOLTAGE
OUTPUT VOLTAGE
V
O
(V) (50mV/div)
TIME, t (1μs/div)
TIME, t (4ms/div)
Figure 26. Typical output ripple and noise (V
IN
=
V
IN,NOM
, I
o
= I
o,max
).
OUTPUT VOLTAGE
Figure 29. Typical Start-up Using Remote On/Off,
negative logic version shown (V
IN
= V
IN,NOM
, I
o
= I
o,max
).
INPUT VOLTAGE
V
IN
(V) (20V/div)
OUTPUT CURRENT
V
O
(V) (50mV/div)
TIME, t (500us/div)
OUTPUT VOLTAGE
V
O
(V) (500mV/div)
Io(A) (10A/div)
TIME, t (5ms/div)
Figure 27. Transient Response to Dynamic Load
Change from 50% to 75% to 50% of full load.
Figure 30. Typical Start-up Using Input Voltage (V
IN
=
V
IN,NOM
, I
o
= I
o,max
).
LINEAGE
POWER
10
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
