English
Language : 

JHW250S30R21-18T Datasheet, PDF (2/14 Pages) Lineage Power Corporation – 36 - 75 Vdc Input; 30.2Vdc Output; 250W
JHW250S30R2 Power Module; dc-dc Converter
36 – 75 Vdc Input; 30.2Vdc Output; 250W
Data Sheet
October 6, 2005
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
JHW
VIN
-0.3
Max
80
Unit
Vdc
Transient (100ms)
Operating Ambient Temperature (Case)
(See Thermal Considerations section)
Storage Temperature
I/O Isolation Voltage
JHW
VIN, trans
-0.3
100
Vdc
All
Tc
-40
100
°C
All
Tstg
-55
125
°C
All
⎯
⎯
1500
Vdc
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Parameter
Operating Input Voltage
Maximum Input Current
(VIN=0V to 36V, IO=IO, max)/(VIN=0V to 75V, IO=IO, max)
Inrush Transient
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; VIN=0V to
75V, IO= IOmax ; see Figure 13)
Input Ripple Rejection (120Hz)
Device Symbol
JHW
VIN
JHW
All
IIN,max
I2t
All
All
Min
36
Typ
48
7
60
Max
75
Unit
Vdc
9.0
Adc
2
A2s
15
mAp-p
dB
Fusing Considerations
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 a 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 fast-acting fuse with a maximum rating of 15A for JHW250 series (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.
2
Tyco Electronics Power Systems.