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PDF MSA260 Data sheet ( Hoja de datos )

Número de pieza MSA260
Descripción Pulse Width Modulation Amplifier
Fabricantes APEX MICROTECHNOLOGY 
Logotipo APEX MICROTECHNOLOGY Logotipo



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No Preview Available ! MSA260 Hoja de datos, Descripción, Manual

P r o d u c t IInnnnoovvaa t i o n FFr roomm
MSMAS2A62600
Pulse Width Modulation Amplifier
FEATURES
• LOW COST
• HIGH VOLTAGE - 450 VOLTS
• HIGH OUTPUT CURRENT - 20 AMPS
• 9kW OUTPUT CAPABILITY
• VARIABLE SWITCHING FREQUENCY
• IGBT FULL BRIDGE OUTPUT
APPLICATIONS
• BRUSH MOTOR CONTROL
• MRI
• MAGNETIC BEARINGS
• CLASS D SWITCHMODE AMPLIFIER
General Description
The MSA260 is a surface mount constructed PWM
amplifier that provides a cost effective solution in many
industrial applications. The MSA260 offers outstand-
ing performance that rivals many much more expen-
sive hybrid components. The MSA260 is a complete
PWM amplifier including an oscillator, comparator, er-
ror amplifier, current limit comparators, 5V reference,
a smart controller and a full bridge IGBT output circuit.
The switching frequency is user programmable up to
50 kHz. The MSA260 is built on a thermally conductive
but electrically insulating substrate that can be mount-
ed to a heatsink.
Equivalent Circuit Diagram
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MSA260U
http://www.cirrus.com
Copyrig( Ahtll©RiCghirtrsu sRLeosgeircv,eIdn)c. 2008
NOV 2008
APEX − MSA260UREVC
Datasheet pdf - http://www.DataSheet4U.co.kr/

1 page




MSA260 pdf
Product Innova tionFrom
MSA260
58-pin DIP
PACKAGE STYLE KC
Typical Application
TORQUE MOTOR CONTROL
With the addition of a few exter-
nal components the MSA260 be-
comes a motor torque controller.
In the MSA260 the source termi-
nal of each low side IGBT driver
is brought out for current sensing
via RSA and RSB. A1 is a differen-
tial amplifier that amplifies the dif-
ference in currents of the two half
bridges. This signal is fed into the
internal error amplifier that mixes
the current signal and the control
signal. The result is an input sig-
nal to the MSA260 that controls
the torque on the motor.
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General
Please read Application Note 30 “PWM Basics”. Refer also to Application Note 1 “General Operating Consider-
ations” for helpful information regarding power supplies, heat sinking, mounting, SOA interpretation, and specifica-
tion interpretation. Visit www.cirrus.com for design tools that help automate tasks such as calculations for stability,
internal power dissipation, current limit, heat sink selection, Cirrus’s complete Application Notes library, Technical
Seminar Workbook and Evaluation Kits.
MSA260U

Datasheet pdf - http://www.DataSheet4U.co.kr/

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