OPA548FKTWT

The OPA548 device is a low-cost, high-voltage, and
high-current operational amplifier that is designed to
drive a wide variety of loads. A laser-trimmed,
monolithic, integrated circuit provides excellent lowlevel signal accuracy and high-output voltage and
current.
The OPA548 operates from either single or dual
supplies for design flexibility. In single-supply
operation, the input common-mode range extends
below ground.
The OPA548 is internally protected against
overtemperature conditions and current overloads. In
addition, the OPA548 is designed to provide an
accurate, user-selected current limit. Unlike other
designs that use a power resistor in series with the
output current path, the OPA548 senses the load
indirectly. The current limit is adjustable from 0 A to 5
A with an external resistor and potentiometer, or
controllable 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 quiescent current to conserve power. The E/S pin
output can be monitored to determine if the OPA548
is in thermal shutdown.
The OPA548 device is available in an industrystandard 7-lead staggered and straight lead 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. The device is specified for
operation over the extended industrial temperature
range, –40°C to 85°C. A SPICE macromodel is
available for design analysis.

opa548