OPA547_02 Datasheet, PDF (1/16 Pages) Burr-Brown (TI) – High-Voltage, High-Current OPERATIONAL AMPLIFIER

OPA547
OPA547
High-Voltage, High-Current
OPERATIONAL AMPLIFIER
OPA547
SBOS056A – JANUARY 2002
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
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 150µA 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.
V+
V_I–N
OPA547
V_O
V_I+N
I_LIM
R_CL
(0.25W
Signal Resistor)
E/S
V–
R_CL sets the current limit
value from 0 to 750mA.
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.
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.
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