Data Sheet
February 2, 2009
QSK033A0B Series Power Modules; DC-DC Converters
36 – 60 Vdc Input; 12Vdc Output; 33A Output Current
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 device reliability.
Parameter
Input Voltage*
Continuous
Operating transient
≤
100mS
Non- operating continuous
Operating Ambient Temperature
(See Thermal Considerations section)
Storage Temperature
All
T
stg
-55
125
°C
V
dc
I/O Isolation Voltage (100% factory Hi-Pot tested)
All
2250
⎯
⎯
* Input over voltage protection will shutdown the output voltage when the input voltage exceeds threshold level.
All
V
IN
T
A
-0.3
-40
V
IN
-0.3
60
100
100
85
V
dc
V
dc
V
dc
°C
Device
Symbol
Min
Max
Unit
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Parameter
Operating Input Voltage
Maximum Input Current
(V
IN
=0V to 60V, I
O
=I
O, max
)
Inrush Transient
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; V
IN
= 48V,
I
O
= I
Omax
; see Figure 9)
Input Ripple Rejection (120Hz)
All
It
2
Device
Symbol
V
IN
I
IN,max
Min
36
-
Typ
48
-
Max
60
13
Unit
V
dc
A
dc
2
-
-
1
As
All
-
24
-
mA
p-p
All
50
-
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 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 fast-acting fuse with a maximum rating of 30 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 ]
