Data Sheet
October
2008
QW030xx DUAL Series Power Modules: dc-dc Converters;
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
Features
n
Small size: 36.8 mm x 57.9 mm x 12.7 mm
(1.45 in. x 2.28 in. x 0.50 in.)
High power density
High efficiency: 88% typical
Low output noise
Constant frequency
Industry-standard pinout
Metal case
2:1 input voltage range
Overvoltage and overcurrent protection
Remote on/off
Adjustable output voltage
ISO*
9001 and
ISO
14001 Certified manufacturing
facilities
UL
†
60950 Recognized,
CSA
‡
C22.2 No. 60950-00
Certified,
VDE
§
0805 (IEC60950) Licensed
CE mark meets 73/23/EEC and 93/68/EEC
directives
**
n
n
n
n
n
n
The QW030-Series Power Modules use advanced, surface-
mount technology and deliver high-quality, efficient, and
compact dc-dc conversion.
n
n
n
Applications
n
n
n
n
n
n
n
Distributed power architectures
Workstations
Computer equipment
Communications equipment
Optical transport equipment
n
n
Options
n
n
n
Heat sinks available for extended operation
Choice of remote on/off logic configurations
Choice of two pin lengths
*
ISO
is a registered trademark of the International Organization
for Standardization.
†
UL
is a registered trademark of Underwriters Laboratories, Inc.
‡
CSA
is a registered trademark of Canadian Standards Assn.
§
VDE
is a trademark of Verband Deutscher Elektrotechniker e.V.
**This product is intended for integration into end-use equipment.
All the required procedures for CE marking of end-use equip-
ment should be followed. (The CE mark is placed on selected
products.)
Description
The QW030-Series Power Modules are dc-dc converters that operate over an input voltage range of 36 Vdc to
75 Vdc and provide precisely regulated dc outputs. The outputs are fully isolated from the inputs, allowing ver-
satile polarity configurations and grounding connections. The modules have maximum power ratings of 30 W
to 36 W at a typical full-load efficiency of up to 88%.
These encapsulated modules offer a metal case for optimum thermal performance. Threaded-through holes are
provided to allow easy mounting or addition of a heat sink for high-temperature applications. The standard feature
set includes remote sensing, output trim, and remote on/off for convenient flexibility in distributed power
applications.
QW030xx DUAL Series Power Modules: dc-dc Converters;
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
Data Sheet
October
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 device reliability.
Parameter
Input Voltage:
Continuous
Transient (100 ms)
Operating Case Temperature
(See Thermal Considerations section.)
Storage Temperature
I/O Isolation Voltage
(Note case is tied to input)
QW030xx
QW030xx
QW030xx
QW030xx
QW030xx
Device
Symbol
I
Min
—
—
—
–40
–55
—
Max
Unit
V
I
V
I, trans
Tc
T
stg
—
80
100
105*
125
1500
Vdc
V
°C
°C
Vdc
* Maximum case temperature varies based on power dissipation. See power derating curves for details.
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Table 1. Input Specifications
Parameter
Operating Input Voltage:
QW030xx
Maximum Input Current
(V
I
= 0 V to 75 V; I
O
= I
O, max
):
QW030xx
Inrush Transient
Input Reflected-ripple Current, Peak-to-peak
(5 Hz to 20 MHz, 12 µH source impedance;
see Test Configurations section.)
Input Ripple Rejection (120 Hz)
Fusing Considerations
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This encapsulated power module can be used in a wide variety of applications, ranging from simple stand-alone
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 normal-blow fuse with a maximum rating of 5 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 for further information.
Device
QW030xx
Symbol
V
I
Min
36
Typ
48
Max
75
Unit
Vdc
QW030xx
QW030xx
QW030xx
I
I, max
i
2
t
I
—
—
—
—
15
2.2
0.2
—
A
A
2
s
mAp-p
QW030xx
—
—
50
—
dB
2
Lineage Power
Data Sheet
October
2008
QW030xx DUAL Series Power Modules: dc-dc Converters;
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
Electrical Specifications
(continued)
Table 2. Output Specifications
Parameter
Output Voltage Set Point
(V
I
= 48 V; I
O1
= I
O2,
= I
O,min
)
Device
Suffix
CL
CL
BK
BK
AJ
AJ
CL
CL
BK
BK
AJ
AJ
Qx030xx
Qx030xx
Qx030xx
Qx030xx
CL
CL
BK
BK
AJ
AJ
Qx030xx
CL
CL
CL
BK
BK
BK
AJ
AJ
AJ
CL
BK
AJ
CL
BK
AJ
Symbol
V
O1, set
V
O2, set
V
O1, set
V
O2, set
V
O1, set
V
O2, set
V
O1
V
O2
V
O1
V
O2
V
O1
V
O2
V
01
,V
02
V
01
+V
02
V
01
+V
02
V
01
,V
02
V
01
,V
02
V
01
,V
02
—
—
—
—
—
—
—
I
01
I
02
I
tot!
I
01
I
02
I
tot!
I
01
I
02
I
tot!
I
tot
I
tot
I
tot
I
totsc
I
totsc
I
totsc
Min
14.7
-14.7
11.76
-11.76
4.85
-4.85
13.8
-13.8
11.04
-11.04
4.75
-4.75
Typ
—
—
—
—
—
—
—
—
—
—
—
—
0.5
0.25
0.25
1
±4
0.5
—
—
—
—
—
—
0
0.25
0.25
0.5
0.25
0.25
0.5
0.25
0.25
0.5
—
—
—
—
—
—
Max
15.3
-15.3
12.24
-12.24
5.15
-5.15
16.2
-16.2
12.96
-12.96
5.25
-5.25
0.75
0.5
0.5
2
±6
1
50
150
40
120
50
150
220
1.75
1.75
2.0
2.5
2.5
3.0
3
3
6
—
—
—
—
—
—
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
%
%
%
%
%
mVrms
mVp-p
mVrms
mVp-p
mVrms
mVp-p
µF
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Output Voltage
(Over all operating input voltage, resistive
load, and temperature conditions until end of
life. See Test Configurations section.)
Output Voltage Regulation
Line (V
I
= V
I,min
to V
I,max
; I
01
=I
02
)
Load (V
I
= V
I,nom
; I
01
= I
01min
to I
tot
/2 and
I
02
= I
02min
to I
tot
/2)
Cross Regulation V
01
, V
02
(V
I
=V
I,nom
; I
01
or I
02
= other output = max
load)
Temperature (Tc = -40 to 100)
Output Ripple and Noise Voltage
(See Test Configurations section.):
Measured across one 2.2 µF ceramic
capacitor:
RMS
Peak-to-peak (5 Hz to 20 MHz)
External Load Capacitance on each output
Output Current
(At I
O
< I
O,min
the module may exceed the
ripple specifications)
Output Current-limit Inception
(V
O
= 90% of V
O, set
)
Output Short-circuit Current (V
O
= 0.25 V)
—
—
—
—
—
—
—
—
—
—
3.0
3.7
7
4.5
5.5
10
* Engineering estimate.
!
I
tot
= I
01
+I
02
Sum should not exceed this number
Lineage Power
3
QW030xx DUAL Series Power Modules: dc-dc Converters;
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
Data Sheet
October
2008
Electrical Specifications
(continued)
Table 2. Output Specifications
(continued)
Parameter
Device
Suffix
Symbol
η
η
η
—
Min
—
—
—
—
Typ
88
88
85
360
Max
—
—
—
—
Unit
%
%
%
kHz
CL
Efficiency (V
I
= 48 V; I
O
= I
O, max
):
BK
T
A
= 25 °C
AJ
T
C
= 25 °C
Switching Frequency
QW030xx
Dynamic Response
(ΔI
O
/Δt = 1 A/10 µs, V
I
= 48 V, T
C
= 25 °C):
Load Change from I
O
= 50% to 75% of I
O, max
: QW030xx
Peak Deviation
Settling Time (V
O
< 10% of peak deviation) QW030xx
Load Change from I
O
= 50% to 25% of I
O, max
: QW030xx
Peak Deviation
Settling Time (V
O
< 10% of peak deviation) QW030xx
* Engineering estimate.
—
—
—
—
—
—
—
—
2.5
5.0
2.5
5.0
—
—
—
—
%V
O, set
ms
%V
O, set
ms
Table 3. Isolation Specifications
Parameter
Isolation Capacitance (engineering estimate)
Isolation Resistance
Table 4. General Specifications
Parameter
Calculated MTBF
(I
O
= 80% of I
O, max
; T
C
= 40 °C)
Weight
Device
QW030xx
QW030xx
—
Min
Typ
5,000,000
—
75 (2.7)
Max
Unit
hours
g (oz.)
Device
QW030xx
QW030xx
Min
—
10
Typ
600
—
Max
—
—
Unit
pF
MΩ
4
Lineage Power
Data Sheet
October
2008
QW030xx DUAL Series Power Modules: dc-dc Converters;
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions section of this data sheet for additional information.
Parameter
Remote On/Off Signal Interface
(V
I
= V
I, min
to V
I, max
; open collector or equivalent
compatible; signal referenced to V
I
(–) terminal.):
Negative Logic: Device Code Suffix “1”:
Logic Low—Module On
Logic High—Module Off
Positive Logic: If Device Code Suffix “1” Is Not
Specified:
Logic Low—Module Off
Logic High—Module On
Module Specifications:
On/Off Current—Logic Low
On/Off Voltage:
Logic Low
Logic High (I
on/off
= 0 mA)
Open Collector Switch Specifications:
Leakage Current During Logic High
(V
on/off
= 15 V)
Output Low Voltage During Logic Low
(I
on/off
= 1 mA)
Turn-on Delay and Rise Times
(at 80% of I
O, max
; T
A
= 25 °C):
Case 1: On/Off Input Is Set for Logic High and
then Input Power Is Applied (delay from point
at which V
I
= V
I, min
until V
O
= 10% of V
O, nom
).
Case 2: Input Power Is Applied for at Least One
Second, and Then the On/Off Input Is Set to
Logic High (delay from point at which V
on/off
=
0.9 V until V
O
= 10% of V
O, nom
).
Output Voltage Rise Time (time for V
O
to rise
from 10% of V
O, nom
to 90% of V
O, nom
)
Output Voltage Overshoot (at 80% of I
O, max
;
T
A
= 25 °C)
Output Voltage Adjustment
(See Feature Descriptions section.):
Output Voltage Set-point Adjustment Range
(trim)
Output Overvoltage Protection (clamp)
Device
Suffix
Symbol
Min
Typ
Max
Unit
All
All
All
All
All
I
on/off
V
on/off
V
on/off
I
on/off
V
on/off
—
–0.7
—
—
—
—
—
—
—
—
1.0
1.2
15
50
1.2
mA
V
V
µA
V
All
All
T
delay
T
delay
—
—
8
2
—
—
ms
ms
All
All
T
rise
—
—
—
10
—
—
5*
ms
%
QW030xx
CL
CL
BK
BK
AJ
AJ
—
V
O1, ovp
V
O2, ovp
V
O1, ovp
V
O2, ovp
V
O1, ovp
V
O2, ovp
75
17.1
-17.1
13.7
-13.7
5.9
-5.9
—
—
—
—
—
—
—
110
22.5
-22.5
18.0*
-18.0*
7
-7
%V
O, nom
V
V
V
V
V
V
* Engineering estimate.
Lineage Power
5
