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Tyco

QBW018A0B Datasheet Preview

QBW018A0B Datasheet

Power Modules

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Data Sheet
April 21, 2006
QBW018A0B Series Power Modules, DC - DC Converters:
36 – 75Vdc Input; 12Vdc Output; 18A Output Current
RoHS Compliant
Applications
ƒ Distributed power architectures
ƒ Intermediate bus voltage applications
ƒ Telecommunications equipment
ƒ Servers and storage applications
ƒ Networking equipment
Options
ƒ Negative Remote On/Off logic
ƒ Active load sharing (Parallel Operation)
ƒ Baseplate option (-H)
ƒ Auto restart after fault shutdown
ƒ Case ground pin
Features
ƒ Compliant to RoHS EU Directive 2002/95/EC (-Z
versions)
ƒ Compliant to ROHS EU Directive 2002/95/EC with
lead solder exemption (non-Z versions)
ƒ High power density: 155 W/in3
ƒ High efficiency – 93% at 12V full load
ƒ Improved Thermal Performance:
12A at 70ºC at 2m/s (400LFM)
ƒ Delivers up to 18A output current
ƒ Low output ripple and noise
ƒ 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)
ƒ Cost efficient open frame design
ƒ Single optimal regulated output
ƒ 2 : 1 input voltage range
ƒ Constant switching frequency
ƒ Positive Remote On/Off logic
ƒ Output over current/voltage protection
ƒ Overtemperature protection
ƒ Wide operating temperature range (-40°C to 85°C)
ƒ ISO** 9001 certified manufacturing facilities
ƒ UL* 60950-1 Recognised, CSAC22.2 No. 60950-
3-01 Certified, and EN 60950-1 (VDE0805): 2001-
12 Licensed (pending)
ƒ CE mark meets 73/23/EEC and 93/68/EEC
directives§ (pending)
Description
The QBW018A0B series of dc-dc converters are an expansion of a new generation of DC/DC power modules
designed to support 12Vdc intermediate bus applications where multiple low voltages are subsequently generated
using discrete/modular point of load (POL) converters. The QBW018A0B series provide up to 18A output current in
an industry standard quarter brick, which makes it an ideal choice for small space, high current and 12V
intermediate bus voltage applications. The converter incorporates synchronous rectification technology and
innovative packaging techniques to achieve ultra high efficiency reaching 93% at 12V full load. This leads to lower
power dissipation such that for many applications a heat sink is not required.
The QBW018A0B series power modules are isolated dc-dc converters that operate over an input voltage range from
36 to 75 Vdc and provide a single regulated output. The output is fully isolated from the input, allowing versatile
polarity configurations and grounding connections. Built-in filtering for both input and output minimizes the need for
external filtering.
* 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: DS04-010 ver. 1.4
PDF name: qbus_qbw018a0b_ds.pdf




Tyco

QBW018A0B Datasheet Preview

QBW018A0B Datasheet

Power Modules

No Preview Available !

Data Sheet
April 21, 2006
QBW018A0B Series Power Modules, DC - DC Converters:
36 – 75Vdc Input; 12Vdc Output; 18A 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 the device reliability.
Parameter
Device
Symbol
Min
Max
Input Voltage*
Continuous
Non- operating continuous
VIN -0.3
VIN -0.3
75
80
Operating Ambient Temperature
(See Thermal Considerations section)
All TA -40 85
Storage Temperature
All Tstg -55 125
I/O Isolation Voltage
All ⎯ ⎯ 1500
* Input over voltage protection will shutdown the output voltage when the input voltage exceeds threshold level.
Unit
Vdc
Vdc
°C
°C
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 75V, IO=IO, max)
Inrush Transient
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; VIN=
48V, IO= IOmax ; see Figure 9)
Input Ripple Rejection (120Hz)
Device
All
All
All
Symbol
Min
Typ
Max
Unit
VIN 36 48 75 Vdc
IIN,max
-
-
7 Adc
I2t - - 1 A2s
- 24 - mAp-p
- -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 being
part of a complex 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 15 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.


Part Number QBW018A0B
Description Power Modules
Maker Tyco
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