Data Sheet
March 27, 2008
QPW050/060 Series DC-DC Converter Power Modules:
36-75Vdc Input; 1.2Vdc to 3.3Vdc Output; 50A/60A Output Current
Features
Compliant to RoHS EU Directive 2002/95/EC (-Z
versions)
Compliant to ROHS EU Directive 2002/95/EC with lead
solder exemption (non-Z versions)
Delivers up to 60A output current
Improved Thermal Performance: 30A at 70ºC at 1m/s
(200LFM) for 3.3V
o
High power density: 119W/in
3
High efficiency – 93% at 3.3V full load
Low output voltage- supports migration to future IC
supply voltages down to 1.0V
Industry standard Quarter brick:
57.9 mm x 36.8 mm x 10.6 mm
(2.28 in x 1.45 in x 0.42 in)
Single tightly regulated output
2:1 input voltage range
Constant Switching frequency
Negative Remote On/Off logic
Output overcurrent/voltage/temperature protection
Output Voltage adjustment (±10%)
Wide operating temperature range (-40°C to 85°C)
Meets the voltage insulation requirements for
ETSI 300-132-2 and complies with and is licensed for
Basic Insulation rating per EN60950-1
CE mark meets 73/23/EEC and 93/68/EEC directives
§
UL*
60950-1Recognized,
CSA
†
C22.2 No. 60950-1-03
‡
Certified, and
VDE
0805:2001-12 (EN60950-1)
Licensed
ISO** 9001 certified manufacturing facilities
RoHS Compliant
Applications
Distributed power architectures
Wireless Networks
Access and Optical Network Equipment
Enterprise Networks
Latest generation IC’s (DSP, FPGA, ASIC)
and Microprocessor powered applications
Options
Positive Remote On/Off logic
Case ground pin (-H Baseplate option)
Auto restart after fault shutdown
Description
The QPW-series dc-dc converters are a new generation of DC/DC power modules designed for maximum efficiency
and power density. The QPW series provide up to 60A output current in an industry standard quarter brick. The
converter incorporates synchronous rectification technology and innovative packaging techniques to achieve ultra
high efficiency reaching 93% at 3.3V full load. The ultra high efficiency of this converter leads to lower power
dissipation such that for most applications a heat sink is not required. The QPW series power modules are isolated
dc-dc converters that operate over a wide input voltage range of 36 to 75 Vdc and provide single precisely regulated
output. The output is fully isolated from the input, allowing versatile polarity configurations and grounding
connections
.
*
UL
is a registered trademark of Underwriters Laboratories, Inc.
†
‡
CSA
is a registered trademark of Canadian Standards Association.
VDE
is a trademark of Verband Deutscher Elektrotechniker e.V.
** ISO is a registered trademark of the International Organization of Standards
Document No: DS03-075 ver 1.12
PDF name: qpw050-60a_series.ds.pdf
Data Sheet
March 27, 2008
QPW050/060 Series Power Modules; DC-DC converters
36-75Vdc Input; 1.2Vdc to 3.3Vdc Output
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
Transient (100ms)
Operating Ambient Temperature
(see Thermal Considerations section)
Storage Temperature
I/O Isolation Voltage (100% factory Hi-Pot tested)
All
All
T
stg
⎯
-55
⎯
125
1500
°C
Vdc
All
V
IN
V
IN, trans
T
A
-0.3
-0.3
-40
80
100
85
Vdc
Vdc
°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
=0V to
75V, I
O
= I
Omax
; see Figure 31)
Input Ripple Rejection (120Hz)
All
All
All
It
7
50
2
Device
Symbol
V
IN
I
IN,max
Min
36
Typ
48
Max
75
6
Unit
Vdc
Adc
1
As
mAp-p
dB
2
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 (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.
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Data Sheet
March 27, 2008
QPW050/060 Series Power Modules; DC-DC converters
36-75Vdc Input; 1.2Vdc to 3.3Vdc Output
Electrical Specifications
(continued)
Parameter
Output Voltage Set-point
(V
IN
=V
IN,nom
, I
O
=I
O, max
, T
c
=25°C)
Device
3.3V
2.5V
1.8V
1.5V
1.2V
3.3V
2.5V
1.8V
1.5V
1.2V
All
All
All
Symbol
Min
3.24
2.45
1.77
1.47
1.18
3.20
2.42
1.74
1.44
1.15
⎯
⎯
⎯
Typ
3.30
2.25
1.80
1.50
1.20
Max
3.36
2.55
1.83
1.53
1.22
3.40
2.57
1.86
1.56
1.25
0.2
0.2
50
Unit
V
O, set
V
dc
Output Voltage
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)
Output Regulation
Line (V
IN
=V
IN, min
to V
IN, max
)
Load (I
O
=I
O, min
to I
O, max
)
Temperature (T
c
= -40ºC to +85ºC)
Output Ripple and Noise on nominal output
(V
IN
=V
IN, nom
and I
O
=I
O, min
to I
O, max
)
RMS (5Hz to 20MHz bandwidth)
Peak-to-Peak (5Hz to 20MHz bandwidth)
External Capacitance
Output Current
V
O
⎯
V
dc
0.05
0.05
15
%Vo
%Vo
mV
All
All
All
3.3V
2.5V –
1.2V
C
O, max
I
o
I
o
I
O, lim
I
O, lim
I
O, s/c
I
O, s/c
3.3V
2.5V
1.8V
1.5V
1.2V
η
η
η
η
η
f
sw
⎯
⎯
⎯
0
0
⎯
⎯
⎯
⎯
⎯
__
__
__
__
⎯
⎯
⎯
⎯
30
100
mV
rms
mV
pk-pk
μF
50
60
58
69
⎯
⎯
⎯
⎯
93
91
89
87
85
300
⎯
__
__
__
__
⎯
Adc
Adc
Adc
Adc
A rms
A rms
%
%
%
%
%
kHz
Output Current Limit Inception
3.3V
2.5V –
1.2V
Output Short-Circuit Current
(V
O
≤250mV)
( Hiccup Mode )
Efficiency
V
IN
=V
IN, nom
, T
c
=25°C
I
O
=I
O, max ,
V
O
= V
O,set
Switching Frequency
Dynamic Load Response
(ΔIo/Δt=1A/10μs; V
in
=V
in
,nom; T
c
=25°C; Tested
with a 10
μF
aluminum and a 1.0
μF
ceramic
capacitor across the load.)
Load Change from Io= 50% to 75% of Io,max:
Peak Deviation
Settling Time (Vo<10% peak deviation)
Load Change from Io= 75% to 50% of Io,max:
Peak Deviation
Settling Time (Vo<10% peak deviation)
All
V
pk
t
s
V
pk
t
s
⎯
__
__
⎯
4
200
4
200
⎯
__
__
⎯
%V
O, set
μs
%V
O, set
μs
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Data Sheet
March 27, 2008
QPW050/060 Series Power Modules; DC-DC converters
36-75Vdc Input; 1.2Vdc to 3.3Vdc Output
Isolation Specifications
Parameter
Isolation Capacitance
Isolation Resistance
Symbol
C
iso
R
iso
Min
⎯
10
Typ
2700
⎯
Max
⎯
⎯
Unit
pF
MΩ
General Specifications
Parameter
Calculated MTBF (I
O
=80% of I
O, max
, T
c
=40°C,
airflow=1m/s(200LFM))
Weight
Device
All
⎯
Min
Typ
1,204,000
42 (1.48)
⎯
Max
Unit
Hours
g (oz.)
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Data Sheet
March 27, 2008
QPW050/060 Series Power Modules; DC-DC converters
36-75Vdc Input; 1.2Vdc to 3.3Vdc Output
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions for additional information.
Parameter
Remote On/Off Signal Interface
(V
IN
=V
IN, min
to V
IN, max
; open collector or equivalent,
Signal referenced to V
IN-
terminal)
Negative Logic: device code suffix “1”
Logic Low = module On, Logic High = module Off
Positive Logic: No device code suffix required
Logic Low = module Off, Logic High = module On
Logic Low Specification
Remote On/Off Current – Logic Low
On/Off Voltage:
Logic Low
Logic High – (Typ = Open Collector)
Logic High maximum allowable leakage current
Turn-On Delay and Rise Times
(I
O
=I
O, max
)
T
delay
= Time until V
O
= 10% of V
O,set
from either
application of Vin with Remote On/Off set to On or
operation of Remote On/Off from Off to On with Vin
already applied for at least one second.
T
rise
= time for V
O
to rise from 10% of V
O,set
to 90%
of V
O,set
.
Output Voltage Adjustment
(See Feature Descriptions):
Output Voltage Remote-sense Range
Output Voltage Set-point Adjustment Range (trim)
Output Overvoltage Protection
3.3V
2.5V
1.8V
1.5V
1.2V
Overtemperature Protection
(See Feature Descriptions)
Input Undervoltage Lockout
Turn-on Threshold
Turn-off Threshold
R
R
V
IN, UVLO
⎯
30
34.5
32
36
⎯
V
V
All
T
ref
3.3V
T
delay
T
rise
⎯
⎯
2.5
12
⎯
⎯
ms
ms
All
All
All
V
on/off
V
on/off
I
on/off
0.0
⎯
⎯
⎯
__
⎯
1.2
15
50
V
V
μA
All
I
on/off
⎯
0.15
1.0
mA
Device
Symbol
Min
Typ
Max
Unit
2.5V – 1.2V
T
delay
T
rise
⎯
⎯
2.5
1.5
⎯
⎯
ms
ms
V
sense
__
90
__
__
⎯
⎯
⎯
⎯
⎯
110
10
110
4.9
3.4
2.4
2.2
1.8
⎯
%V
o,nom
%V
o,nom
V
V
V
V
V
°C
V
O, limit
4.0
3.0
2.1
1.8
1.5
⎯
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