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PA04
PA04 • PA04A Power Operational Amplifier RoHS COMPLIANT FEATURES • • • • • • • • High Internal Dissipation — 200 Watts High Voltage, High Current — 200V, 20A High Slew Rate — 50V/µs 4 Wire Current Limit Sensing Low Distortion External Sleep Mode Control Optional Boost Voltage Inputs Evaluation Kit — See EK09 APPLICATIONS • • • • • Sonar Transducer Driver Linear and Rotary Motor Drives Yoke/Magnetic Field Excitation Programmable Power Supplies to ±95V Audio up to 400W DESCRIPTION The PA04 is a high voltage MOSFET power operational amplifier that extends the performance limits of power amplifiers in slew rate and power bandwidth, while maintaining high current and power dissipation ratings. The PA04 is a highly flexible amplifier. The sleep mode feature allows ultra-low quiescent current for standby operation or load protection by disabling the entire amplifier. Boost voltage inputs allow the small signal portion of the amplifier to operate at a higher voltage than the high current output stage. The amplifier is then biased to achieve close linear swings to the supply rails at high currents for extra efficient operation. External compensation tailors performance to user needs. A four wire sense technique allows precision current limiting without the need to consider internal or external milliohm parasitic resistance in the output line. The JEDEC MO-127 12-pin Power Dip™ package (see Package Outlines) is hermetically sealed and isolated from the internal circuits. The use of compressible thermal washers will void product warranty. www.apexanalog.com © Apex Microtechnology Inc. All rights reserved Aug 2015 PA04U Rev O
APEX
Apex Microtechnology
U.S.A
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