Data Sheet
July 27, 2009
JNW350R Power Modules; DC-DC Converters
36 – 75 Vdc Input; 28Vdc Output; 350W Output
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
Transient, operational (≤100 ms)
Operating Ambient Temperature
Note: When the operating ambient temperature is within
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)
Storage Temperature
I/O Isolation Voltage: Input to Case, Input to Output
Output to Case
All
All
V
IN
V
IN,trans
Ta
-0.3
-0.3
80
100
V
dc
V
dc
°C
Device
Symbol
Min
Max
Unit
All
-40
85
All
All
All
All
Tc
T
stg
⎯
⎯
-40
-55
⎯
⎯
100
125
1500
500
°C
°C
V
dc
V
dc
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Parameter
Operating Input Voltage
(see Figure 12 for V
IN, min
when using trim-up feature)
Maximum Input Current
(V
IN
=36V to 75V, I
O
=I
O, max
)
Inrush Transient
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; V
IN
=0V to 75V,
I
O
= I
Omax
; see Figure 7)
Input Ripple Rejection (120Hz)
All
All
All
All
50
I
IN,max
It
2
Device
All
Symbol
V
IN
Min
36
Typ
48
Max
75
Unit
V
dc
12.5
2
20
A
dc
As
mA
p-p
dB
2
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 ]
