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Data Sheet
October 5, 2009
FNW700R Power Modules; DC-DC Converters
36 – 75 Vdc Input; 28Vdc Output; 700W Output
LINEAGE POWER
2
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
Device
Symbol
Min
Max
Unit
Input Voltage (Continuous)
All
VIN
-0.3
80
Vdc
Operating Ambient Temperature
(See Thermal Considerations section)
Note: When the operating ambient temperature is within 55C~85C,
the application of the module refers to the derating curves of Figure
15 and Figure 16.
All
TA
-40
85
°C
Operating Case Temperature
(See Thermal Considerations section)
All
TC
-40
100
°C
Storage Temperature
All
Tstg
-55
125
°C
I/O Isolation Voltage, input to case
All
1500
Vdc
Output to case
All
500
Vdc
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
All
VIN
36
48
75
Vdc
Maximum Input Current
(VIN=36V to 75V, IO=IO, max)
All
IIN,max
23
Adc
Inrush Transient
All
I
2t
2
A
2s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; VIN=0V to
75V, IO= IOmax ; see Figure 10)
All
40
mAp-p
Input Ripple Rejection (120Hz)
All
60
dB
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 fast-
acting fuse with a maximum rating of 30A (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.