Document
MSA260
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 outstanding performance that rivals many much more expensive hybrid components. The MSA260 is a complete PWM amplifier including an oscillator, comparator, error 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 mounted to a heatsink.
EQUIVALENT CIRCUIT DIAGRAM
VCC 29
5V REF OUT
SIGNAL.