2005 CoEv Power Magnetics Short Form Catalog
www.circuitprotection.com
TA B L E O F C O N T E N T S
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
Custom Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 – 4
Custom Design Worksheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
Configurable Transformers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 – 12
MGSP1
MGSP2
MGSP3
MGSP4
MGSP5
MGSP6
MGSP7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
SMT Power Inductors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13 – 23
Low Profile SMT Power Inductors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Self-leaded SMT Power Inductors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 – 15
Low Profile Surface Mount Dual Inductors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 – 17
High and Low Current Coupled Inductors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
High Current Self-leaded SMT Power Inductors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
National 260kHz Simple Switcher™ Inductors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 – 21
National 156kHz Simple Switcher™ Inductors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 – 23
SMT Common Mode Chokes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24 – 26
Surface Mount Common Mode Chokes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 – 25
Surface Mount Common Mode Inductors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
High Current Inductors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27 – 28
High Power Shielded Inductors—DX Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
High Power Shielded Inductors—DZ Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Drum Core Inductors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29 – 47
MGDH Series
MGDN Series
MGDQ Series
MGDS Series
MGDU Series
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 – 30
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 – 34
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 – 40
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 – 43
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44 – 47
Wire Wound Inductors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
48 – 50
Calculating Inductances for Converter Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
51 – 53
1
OVERVIEW
Design and Engineering Services
CoEv Magnetics’ design engineers are ready to help you
solve your complex magnetics problems or advise on
topologies and core geometries. Acting as an extension of
your design team, our expertise can help you bring your
products to market faster and with minimum design
iterations. Our design team supports development issues
such as:
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•
•
•
•
•
•
Full custom magnetics device design
Custom core and bobbin design
Fast prototype turnaround
Core geometry and materials selection
Wire and isolation recommendations
Design for manufacturability
Performance evaluation over frequency and temperature
Power Magnetics Overview
CoEv Magnetics’ power magnetics portfolio includes custom
power transformers for high frequency switch mode power
supply applications as well as standard offerings for
configurable transformers, SMT power inductors, high
current inductors, drum core inductors and wire wound
inductors. These state of the art products are design to
support today’s higher power density and wider temperature
range requirements.
Custom Power
• High switching frequency
transformers
• Configurable transformers
• Current sense transformers
• Common mode chokes
Inductors
• Toroid inductors
• High current inductors
• Drum core inductors
- Shielded
- Unshielded
• Wire wound inductors
Broadband Magnetics
CoEv Magnetics offers a variety of standard package styles
and form factors to meet all of your xDSL needs. At CoEv
Magnetics our design engineers work directly with the
development teams at the IC Manufacturer to develop line
transformers and inductors to work for each specific
application. This focus enables CoEv Magnetics to offer
products designed for the most recent developments in
ADSL2, ADSL2+, VDSL and SHDSL.
Networking Magnetics Products
CoEv Magnetics offers a variety of Ethernet magnetics
products for 10/100/1000Bate-T, ATM and VoIP/Powered
Ethernet applications. Discrete and integrated devices are
available including LAN magnetics modules and RJ45
connectors with integrated magnetics.
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CUSTOM POWER
CoEv Magnetics provides a wide variety of transformers for switch mode power supply applications. Products include a line of
off-the-shelf configurable transformers, custom designs based on industry standard packages and custom device designs.
This portfolio includes a selection of our most popular standard product offering. CoEv Magnetics also offers an extensive
selection of non-standard product and an infinite variety of custom product possibilities. CoEv Magnetics’ development
engineers are dedicated to helping you to make your most complex design requirements ready for tomorrow’s applications.
Custom SMPS Transformers
Transformers for SMPS (Switch Mode Power Supply) applications are supported using industry standard packages that can
be optimized for your specific needs. A sampling of standard geometries and their typical power handling capabilities are
shown in the graph on the following page.
Custom transformer design assistance can be obtained by filling out the custom magnetics design worksheet on page 5 and sub-
mitting it to CoEv Magnetics or submitting your known application requirements on-line at:
www.ps.circuitprotection.com/coev/worksheet/power.php
You can also call our toll free number to speak to any of our expert design engineering staff to assist with your projects.
H
W
L
Package
CEP7
CEP8
LxWxH
(inches)
0.390x0.360x0.435
0.410x0.400x0.500
0.490x0.600x0.445
Custom SMPS Magnetics
CoEv Magnetics offers a wide range of SMPS magnetics for all typical topologies
including Push-Pull, Forward Converter and Flyback. (The chart on the following
page gives approximate power handling capabilities in watts for the standard
package styles that CoEv Magnetics uses in customized SMPS Magnetics designs
to meet configuration and frequency requirements.) These package styles can be
used to create an infinite range of custom magnetics with variations for all
parameters including:
•
•
•
•
•
Turns Ratio
Drive Levels
Leakage Inductance
DC Resistance
Isolation Voltage
•
•
•
•
Current Handling Capability
Inductance
Self Resonant Frequency
Mounting Configuration
CEP10
EE5
EE13
EE16
EE30
0.240x0.345x0.250
0.525x0.525x0.380
0.750x0.750x0.550
1.250x1.250x0.750
EFD10
EFD12
EFD15
EFD20
EFD25
EFD30
0.475x0.775x0.220
0.550x0.800x0.250
0.750x0.880x0.300
0.870x1.100x0.375
1.000x1.100x0.500
1.150x1.250x0.500
EP7
EP10
EP13
EP17
EP20
0.426x0.530x0.343
0.480x0.600x0.430
0.530x0.700x0.480
0.865x0.800x0.650
1.020x0.900x0.767
The approximate length, width and height of each package style may vary
depending on mounting and pin configuration chosen.
Each custom design is developed to optimize size, cost and performance for your
particular application.
ER9.5
ER11.5
ER14.5
0.400x0.475x0.250
0.500x0.510x0.250
0.600x0.675x0.265
3
CUSTOM POWER
10000
Power Output vs Frequency & Topology
1000
ETD44
ETD39
Theoretical Max Output Pwr - Watts
ETD29
EE30
EFD30
100
EFD25
EFD20
EP17
EE13
EP13
EFD15
CEP10
EF12.6
EP10
CEP7
EP7
ER11/5
ER9.5
EE8.8
10
1
EE5
Power Levels determined with:
Max Core Loss (Pfe) = 200 mW/cm^3 and Current Density (Jcu^-1) = 27*D^.69 - 10 (where D is greatest core dimension in mm)
0.1
100 250 500 750
1
100 250 500 750
1
100 250 500 750
1
100 250 500 750
1
100 250 500 750
1
KHz KHz KHz KHz MHz KHz KHz KHz KHz MHz KHz KHz KHz KHz MHz KHz KHz KHz KHz MHz KHz KHz KHz KHz MHz
Full or Half Bridge
Push-Pull
Forward Converter
Flyback - Single Output
Flyback - Multiple Output
The chart above can be used to find a possible core for the design of a converter circuit. It is intended to be
helpful for the person who is just getting started with a design project when that person does not know where to
start. Not all factors could be taken into account for this chart. Your application may or may not work with a core
chosen by using this chart, but it is a good place to start.
Each wavy line represents the power conversion capability of one core type for different topologies and various
frequencies. If you know the power that your circuit must deliver, follow the gridline for that power to a point
where it crosses one of the wavy capability lines. At that frequency and topology that core can transform that
power (or less). All cores above that point will also handle that power, but they may be too big to be practical.
Note:
Use only the upward sloping parts of the dark lines. The downward sloping parts are simply to guide your
eyes to the next topology type for that core.
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