Data Sheet
JNW350R Power Modules; DC-DC Converters
36 – 75 Vdc Input; 28Vdc Output; 350W Output
July 27, 2009
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are
absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in
excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for
extended periods can adversely affect the device reliability.
Parameter
Input Voltage
Continuous
Device
Symbol
Min
Max
Unit
All
All
VIN
-0.3
-0.3
80
Vdc
Vdc
Transient, operational (≤100 ms)
VIN,trans
100
Operating Ambient Temperature
Note: When the operating ambient temperature is within
All
Ta
-40
85
°C
55°C ~85°C, the application of the module refers to the
derating curves of Figures 21 and 22.
Operating Case Temperature
(See Thermal Considerations section, Figure 20)
All
Tc
-40
100
°C
Storage Temperature
All
All
All
Tstg
⎯
-55
⎯
125
1500
500
°C
Vdc
Vdc
I/O Isolation Voltage: Input to Case, Input to Output
Output to Case
⎯
⎯
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Parameter
Device
Symbol
Min
Typ
Max
Unit
Operating Input Voltage
(see Figure 12 for VIN, min when using trim-up feature)
All
VIN
36
48
75
Vdc
Maximum Input Current
(VIN=36V to 75V, IO=IO, max
)
All
All
IIN,max
I2t
12.5
2
Adc
Inrush Transient
A2s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; VIN=0V to 75V,
IO= IOmax ; see Figure 7)
All
All
20
mAp-p
dB
Input Ripple Rejection (120Hz)
50
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This power module can be used in a wide variety of applications, ranging from simple standalone operation to being
an integrated part of complex power architecture. To preserve maximum flexibility, internal fusing is not included.
Always use an input line fuse, to achieve maximum safety and system protection. The safety agencies require a
time-delay or fast-acting fuse with a maximum rating of 20 A (see Safety Considerations section). Based on the
information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a
lower rating can be used. Refer to the fuse manufacturer’s data sheet for further information.
LINEAGE POWER
2
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
