JHW250S30R2 Power Module; dc-dc Converter
36 – 75 Vdc Input; 30.2Vdc Output; 250W
Data Sheet
October 6, 2005
Characteristic Curves
The following figures provide typical characteristics for the JHW250S30R21-18T (30.2V, 8.3A) at 25°C. The figures
show negative Remote On/Off logic version.
V
ON/OFF
(V) (2V/div)
V
O
(V) (10V/div)
9
INPUT CURRENT, I
IN
(A)
8
7
6
5
4
3
2
1
0
25
35
45
55
65
75
Io = 8.3A
Io = 4.2A
Io = 0A
INPUT VOLTAGE, V
O
(V)
OUTPUT VOLTAGE, On/Off VOLTAGE
TIME, t (10 ms/div)
Figure 1. Typical Input Characteristic at Room
Temperature
94
90
Figure 4. Typical Start-Up Using Remote On/Off,
negative logic, C
o,ext
= 14x150µF
OUTPUT VOLTAGE, INPUT VOLTAGE
EFFICIENCY,
η
(%)
86
82
78
74
70
0
1
2
3
4
Vin = 36V
Vin = 48V
Vin = 75V
5
6
7
8
9
OUTPUT CURRENT, I
O
(A)
V
O
(V) (10V/div)
V
IN
(V) (20V/div)
TIME, t (10 ms/div)
Figure 2. Typical Converter Efficiency Vs. Output
current at Room Temperature
Figure 5. Typical Start-Up With Application of Vin, C
o,ext
= 14x150µF, Remote On/Off = On.
OUTPUT CURRENT, OUTPUT VOLTAGE
75 Vin
OUTPUT VOLTAGE,
V
O
(V) (50mV/div)
48 Vin
36 Vin
I
O
(A) (5A/div)
V
O
(V) (500mV/div)
TIME, t (1μs/div)
TIME, t (1 ms/div)
Figure 3. Typical Output Ripple and Noise at Room
Temperature, I
o
= I
o,max,
C
o,ext
= C
o,min
= 1000µF
Figure 6. Typical Transient Response to a Load
Change from 1A to 8.3A at 5A/10μs, Room
Temperature, C
o ext
= 14x150µF
6
Tyco Electronics Power Systems
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
