Datasheet PA05 (Apex)

PA05 Power Operational Amplifier RoHS
COMPLIANT
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 EK45
APPLICATIONS
• Linear And Rotary Motor Drives • Sonar Transducer Driver • Yoke/magnetic Field Excitation • Programmable Power Supplies To ±45V • Audio up to 500W
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 al ows the output stage to be turned off for standby operation or load protection during fault conditions. Boost voltage inputs al ow the smal sig- nal 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 tech- nique al ows precision current limiting without the need to consider internal or external mΩ parasitic resis- tance in the output line. The output stage is protected by thermal limiting circuits above junction temperatures of 175°C. www.apexanalog.com © Apex Microtechnology Inc. Sep 2019 Al rights reserved PA05U Rev O Document Outline PA05 Features Applications Description Figure 1: Equivalent Schematic Typical Connection Figure 2: Typical Connections Pinout and Description Table Figure 3: External Connections Specifications Absolute Maximum Ratings Input Gain Output Power Supply Thermal Typical Performance Graphs SAFE OPERATING AREA (SOA) 1. The current handling capability of the MOSFET geometry and the wire bonds. 2. The junction temperature of the output MOSFETs. Figure 16: SOA General Typical Application Figure 17: Typical Application Phase Compensation Current Limit Figure 18: Current Limit Shutdown Operation Figure 19: Shutdown Operation Boost Operation Compensation Package Design Package Style CR