Features: HIGH OUTPUT CURRENT: 2A
OUTPUT SWINGS TO: 150mV of Rails with IO = 2A
THERMAL PROTECTION
ADJUSTABLE CURRENT LIMIT
TWO FLAGS: Current Limit and Temperature Warning
LOW SUPPLY VOLTAGE OPERATION: 2.7V to 5.5V
SHUTDOWN FUNCTION WITH OUTPUT DISABLE
SMALL POWER PACKAGE
Application-THERMOELECTRIC COOLER DRIVER
-LASER DIODE PUMP DRIVER
-VALVE, ACTUATOR DRIVER
-SYNCHRO, SERVO DRIVER
-TRANSDUCER EXCITATION
-GENERAL LINEAR POWER BOOSTER FOR OP AMPSPinout
SpecificationsSupply Voltage.................................................................................+7.5V
Output Current.................................................................See SOA Curves
Signal Input Terminals (pins 8 and 9):
Voltage(2).................................................(V) 0.5V to (V+) + 0.5V
Current(2)................................................................................±10mA
Output Short-Circuit(3)........Continuous when thermal protection enabled
Enable Pin (pin 11)..........................................(V) 0.5V to (V) + 7.5V
Current Limit Set, ILIMIT Pin (pin 6).................(V) 0.5V to (V+) + 0.5V
Operating Temperature...............................................55°C to +125°C
Storage Temperature..................................................65°C to +150°C
Junction Temperature...................................................................+150°C
ESD Rating:
Human Body Model...................................................................3kV
Charged Device Model..........................................................1500VDescriptionThe OPA567 is a low-cost, high-current, operational amplifier designed for driving a wide variety of loads while operating on low-voltage supplies. It operates from either single or dual supplies for design flexibility and has rail-to-rail swing on the input and output. Output swing is within 300mV of the supply
rails, with output current of 2A. Smaller loads allow an output swing closer to the rails.
The OPA567 is unity gain stable, easy to use, and free from the phase inversion problems found in some power amplifi-ers. High performance is maintained at voltage swings near the output rails.
The OPA567 provides an accurate user-selected current limit set with an external resistor, or digitally adjusted via a Digital-to-Analog Converter (DAC). The output of the device can be independently disabled using the Enable pin. This feature saves power and protects the load.
Two flags are provided. The current limit flag, IFLAG, warns of current limit conditions. TFLAG is a thermal flag that warns of thermal overstress. The TFLAG pin can be connected to the Enable pin to provide a thermal shutdown solution.
The OPA567 is available in a tiny 5mm x 5mm Quad Flatpack No-lead (QFN) package and features an exposed thermal pad that enhances thermal and electrical character-istics. It is small and easy to heat sink. The OPA567 is specified for operation over the industrial temperature range,40°C to +85°C.
OPA567 Data Sheet
