DESCRIPTION

The PA04 is a high voltage MOSFET power operational amplifer that extends the performance limits of power amplifers in slew rate and power bandwidth, while maintaining high current and power dissipation ratings.

The PA04 is a highly flexible amplifer. The sleep mode feature allows ultra-low quiescent current for standby operation or load protection by disabling the entire amplifer. Boost voltage inputs allow the small signal portion of the amplifer to operate at a higher voltage than the high current output stage. The amplifer 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

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