Data Sheet
JNW350R Power Modules; DC-DC Converters
36 – 75 Vdc Input; 28Vdc Output; 350W Output
July 27, 2009
Characteristic Curves
The following figures provide typical characteristics for the JNW350R (28V, 18A) at 25ºC. The figures are identical for
either positive or negative Remote On/Off logic.
94
92
90
Vin=36V
88
86
Vin=48V
Vin=75V
84
82
0
2.5
5
7.5
10
12.5
OUTPUT CURRENT, Io (A)
TIME, t (20ms/div)
Figure 1. Converter Efficiency versus Output
Current.
Figure 4. Typical Start-Up Using negative Remote
On/Off; Co,ext = 470µF.
TIME, t (20ms/div)
TIME, t (1μs/div)
Figure 2. Typical Output Ripple and Noise at Room
Temperature and 48Vin; Io = Io,max; Co,ext = 470µF.
Figure 5. Typical Start-Up from VIN, on/off enabled
prior to VIN step; Co,ext = 470µF.
TIME, t (1ms/div)
TIME, t (1ms/div)
Figure 3. Standard JNW350R Transient Response to
Dynamic Load Change from 25% to 50% to 25% of
Full Load at Room Temperature and 48 Vdc Input;
0.1A/uS, Co,ext = 470µF
Figure 6. Standard JNW350R Transient Response to
Dynamic Load Change from 50% to 75% to 50% of
Full Load at Room Temperature and 48 Vdc Input;
0.1A/uS, Co,ext = 470µF
LINEAGE POWER
5
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
