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OPA547F Datasheet(PDF) 1 Page - Burr-Brown (TI) |
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OPA547F Datasheet(HTML) 1 Page - Burr-Brown (TI) |
1 / 16 page OPA547 OPA547 High-Voltage, High-Current OPERATIONAL AMPLIFIER DESCRIPTION The OPA547 is a low cost, high-voltage/high-current opera- tional amplifier ideal for driving a wide variety of loads. A laser-trimmed monolithic integrated circuit provides excel- lent low-level signal accuracy and high output voltage and current. The OPA547 operates from either single or dual supplies for design flexibility. In single supply operation, the input common-mode range extends below ground. The OPA547 is internally protected against over-tempera- ture conditions and current overloads. In addition, the OPA547 was designed to provide an accurate, user-selected current limit. Unlike other designs which use a “power” resistor in series with the output current path, the OPA547 senses the load indirectly. This allows the current limit to be adjusted from 0 to 750mA with a 0 to 150 µA control signal. This is easily done with a resistor/potentiometer or con- trolled digitally with a voltage-out or current-out DAC. The Enable/Status (E/S) pin provides two functions. An input on the pin not only disables the output stage to effectively disconnect the load but also reduces the quies- cent to conserve power. The E/S pin output can be moni- tored to determine if the OPA547 is in thermal shutdown. The OPA547 is available in an industry-standard 7-lead staggered TO-220 package and a 7-lead DDPAK surface-mount plastic power package. The copper tab allows easy mounting to a heat sink or circuit board for excellent thermal performance. It is specified for operation over the extended industrial temperature range, –40 °C to +85°C. FEATURES q WIDE SUPPLY RANGE Single Supply: +8V to +60V Dual Supply: ±4V to ±30V q HIGH OUTPUT CURRENT: 500mA Continuous 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: 6V/ µs q LOW QUIESCENT CURRENT q PACKAGES: 7-Lead TO-220 7-Lead DDPAK Surface-Mount APPLICATIONS q VALVE, ACTUATOR DRIVER q SYNCHRO, SERVO DRIVER q POWER SUPPLIES q TEST EQUIPMENT q TRANSDUCER EXCITATION q AUDIO AMPLIFIER OPA547 V IN – V IN + V+ E/S R CL R CL sets the current limit value from 0 to 750mA. (0.25W Signal Resistor) I LIM V O V– OPA547 SBOS056A – JANUARY 2002 www.ti.com PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 1997, Texas Instruments Incorporated Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. |
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