30A, 100V, 100V/µs Power Amplifier
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Power Operational Amplifier FEATURES • HIGH INTERNAL DISSIPATION — 250 WATTS • HIGH VOLTAGE, HIGH CURRENT — 100V, 30A • HIGH SLEW RATE — 100V/µS • 4 WIRE CURRENT LIMIT SENSING • LOW DISTORTION • EXTERNAL SHUTDOWN CONTROL • OPTIONAL BOOST VOLTAGE INPUTS • EVALUATION KIT — SEE EK09 12-PIN POWER DIP PACKAGE STYLE CR 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 and/or improper mounting torque will void the product warranty. Please see “General Operating Considerations” . APPLICATIONS • LINEAR AND ROTARY MOTOR DRIVES • SONAR TRANSDUCER DRIVER • YOKE/MAGNETIC FIELD EXCITATION • PROGRAMMABLE POWER SUPPLIES TO ±45V • AUDIO UP TO 500W TYPICAL APPLICATION DESCRIPTION The PA05 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 PA05 is a highly flexible amplifier. The shutdown control feature allows the output stage to be turned off for standby operation or load protection during fault conditions. 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 slew rate and bandwidth 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 output stage is protected by thermal limiting circuits above junction temperatures of 175°C. CONTROL LOGIC ULTRASONIC DRIVE EXTERNAL CONNECTIONS –INPUT The high power bandwidth of the PA05 allows driving sonar transducers via a resonant circuit including the transducer and a matching transformer. The load circuit appears resistive to the PA05. Control logic turns off the amplifier's output during shutdown. +INPUT COMP R CC C COMP –V BOOST CURRENT LIMIT CURRENT LIMIT +V BOOST * +SUPPLY OUTPUT PHASE COMPENSATION Gain CC RC 1 470pF 120Ω >3 220pF 120Ω ≥10 82pF 120Ω CC RATED FOR FULL SUPPLY VOLTAGE *See BOOST OPERATION paragraph. Copyright © Apex Microtechnology, Inc. 2012 (All Rights Reserved)

PA05 • PA05A ABSOLUTE MAXIMUM RATINGS SUPPLY VOLTAGE, +VS to –VS BOOST VOLTAGE OUTPUT CURRENT, continuous within SOA POWER DISSIPATION, internal INPUT VOLTAGE, differential INPUT VOLTAGE, common mode TEMPERATURE, pin solder - 10s TEMPERATURE, junction2 TEMPERATURE, storage OPERATING TEMPERATURE RANGE, case SPECIFICATIONS PARAMETER INPUT OFFSET VOLTAGE, initial OFFSET VOLTAGE, vs. temperature OFFSET VOLTAGE, vs. supply OFFSET VOLTAGE, vs. power BIAS CURRENT, initial BIAS CURRENT, vs. supply OFFSET CURRENT, initial INPUT IMPEDANCE, DC INPUT CAPACITANCE COMMON MODE VOLTAGE RANGE COMMON MODE...

POWER SUPPLY REJECTION, PSR (dB) SMALL SIGNAL RESPONSE NORMALIZED QUIESCENT CURRENT, IQ (X) QUIESCENT CURRENT CURRENT LIMIT 100 40 60 80 TOTAL SUPPLY VOLTAGE, VS (V) HARMONIC DISTORTION OUTPUT VOLTAGE SWING PULSE RESPONSE COMMON MODE REJECTION, CMR (dB) COMMON MODE REJECTION PHASE RESPONSE NORMALIZED CURRENT LIMIT, (%) OPEN LOOP GAIN, A (dB) SLEW RATE vs. COMP POWER SUPPLY REJECTION VOLTAGE DROP FROM SUPPLY, VS –VO (V) POWER DERATING INTERNAL POWER DISSIPATION, P (W)

PA05 • PA05A GENERAL Please read Application Note 1 "General Operating Considerations" which covers stability, supplies, heat sinking, mounting, current limit, SOA interpretation, and specification interpretation. Visit www.apexanalog.com for design tools that help automate tasks such as calculations for stability, internal power dissipation, current limit; heat sink selection; Apex Microtechnologys complete Application Notes library; Technical Seminar Workbook; and Evaluation Kits. CURRENT LIMIT The two current limit sense lines are to be connected directly across the current limit sense...

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