OPA549

高电压大电流运算放大器，出色的输出摆幅

The 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.

The Enable/Status E/S pin provides two functions. It can be monitored to determine if the device is in thermal shutdown, and it can be forced low to disable the output stage and effectively disconnect the load.

The OPA549 is available in an 11-lead power package. Its copper tab allows easy mounting to a heat sink for excellent thermal performance. Operation is specified over the extended industrial temperature range, –40°C to +85°C.

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HIGH OUTPUT CURRENT:

   8A Continuous

   10A Peak

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WIDE POWER-SUPPLY RANGE:

   Single Supply: +8V to +60V

   Dual Supply: ±4V to ±30V

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WIDE OUTPUT VOLTAGE SWING

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FULLY PROTECTED:

   Thermal Shutdown

   Adjustable Current Limit

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OUTPUT DISABLE CONTROL

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THERMAL SHUTDOWN INDICATOR

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HIGH SLEW RATE: 9V/µs

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CONTROL REFERENCE PIN

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11-LEAD POWER PACKAGE

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APPLICA ONS

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VALVE, ACTUATOR DRIVER

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SYNCHRO, SERVO DRIVER

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POWER SUPPLIES

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TEST EQUIPMENT

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TRANSDUCER EXCITATION

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AUDIO POWER AMPLIFIER

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