OPA549

OPA549 OPA549 OPA549 SBOS093E – MARCH 1999 – REVISED OCTOBER 2005 High-Voltage, High-Current OPERATIONAL AMPLIFIER FEATURES q HIGH OUTPUT CURRENT: 8A Continuous 10A Peak q WIDE POWER-SUPPLY RANGE: Single Supply: +8V to +60V Dual Supply: ±4V to ±30V q WIDE OUTPUT VOLTAGE SWING q FULLY PROTECTED: Thermal Shutdown Adjustable Current Limit q OUTPUT DISABLE CONTROL q THERMAL SHUTDOWN INDICATOR q HIGH SLEW RATE: 9V/µs q CONTROL REFERENCE PIN q 11-LEAD POWER PACKAGE APPLICATIONS q VALVE, ACTUATOR DRIVERS q SYNCHRO, SERVO DRIVERS q POWER SUPPLIES q TEST EQUIPMENT q TRANSDUCER EXCITATION q AUDIO POWER AMPLIFIERS DESCRIPTION The OPA549 is a low-cost, high-voltage/high-current operational amplifier ideal for driving a wide variety of loads. This laser-trimmed monolithic integrated circuit provides excellent low-level signal accuracy and high output voltage and current. The OPA549 operates from either single or dual supplies for design flexibility. The input common-mode range extends below the negative supply. The OPA549 is internally protected against over-temperature conditions and current overloads. In addition, the OPA549 provides an accurate, user-selected current limit. Unlike other designs which use a “power” resistor in series with the output current path, the OPA549 senses the load indirectly. This allows the current limit to be adjusted from 0A to 10A with a resistor/potentiometer, or controlled digitally with a voltage-out or current-out Digital-to-Analog Converter (DAC)....