Data Sheet
JRW017-070 Series Power Modules DC-DC Converters
36-75Vdc Input; 1.2Vdc to 12Vdc Output
July 21, 2008
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
All
Symbol
Min
Max
Unit
Input Voltage
Continuous
VIN
VIN, trans
TA
-0.3
-0.3
-40
80
100
85
Vdc
Vdc
°C
Transient (100 ms)
Operating Ambient Temperature
(see Thermal Considerations section)
Storage Temperature
I/O Isolation
All
All
All
Tstg
-55
125
°C
1500
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
36
48
75
Operating Input Voltage
Maximum Input Current
(VIN=0 to 75V , IO=IO, max
All
VIN
Vdc
Adc
A2s
)
All
All
IIN,max
I2t
7
1
Inrush Transient
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; VIN=0V
to 75V, IO= IOmax ; see Figure 31)
All
All
-
15
60
-
mAp-p
dB
Input Ripple Rejection (120Hz)
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 an
integrated part of sophisticated power architecture. To preserve maximum flexibility, internal fusing is not included;
however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies
require a time-delay fuse with a maximum rating of 20A (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 ]
