Advanced Data Sheet
February 10, 2011
QBDW033A0B Series Power Modules; DC-DC Converters
36-75V
dc
Input; 9.6-12V
dc
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
Operating Input transient slew rate, 50V
IN
to 75V
IN
(Output may exceed regulation limits, no protective
shutdowns shall activate, C
O
=220µF to C
O, max
)
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
-
80
-40
V
IN
-0.3
75
100
12.5
100
85
V
dc
V
dc
V/µs
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 75V, I
O
=I
O, max
)
Input No Load Current
(V
IN
= V
IN, nom
, I
O
= 0, module enabled)
Input Stand-by Current
(V
IN
= V
IN, nom
, module disabled)
Inrush Transient
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; V
IN
= 48V,
I
O
= I
Omax
; see Figure 10)
Input Ripple Rejection (120Hz)
All
Device
Symbol
V
IN
I
IN,max
I
IN,No load
I
IN,stand-by
It
2
Min
36
-
Typ
48
-
50
Max
75
12
Unit
V
dc
A
dc
mA
All
All
10
-
-
1
mA
As
2
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 TBD 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 ]
