Embedded Files
The OPA549 is a powerful high-current op-amp delivering up to 10A peak. Ideal for motor drivers and power supplies with adjustable current limiting.
Description
The OPA549 is a high-performance, low-cost operational amplifier designed to handle heavy loads with ease. This "power" op-amp is built to provide high output current and high voltage while maintaining excellent signal accuracy. Whether you are driving motors, valves, or high-power audio systems, the OPA549 offers the flexibility of working with either a single or dual power supply.
What makes this chip stand out is its internal protection. It is designed to safeguard itself against overheating and current overloads. Unlike standard amplifiers, it allows you to precisely set a current limit (from 0A to 10A) using just a simple resistor or a digital-to-analog converter (DAC). It also features an "Enable" pin that lets you shut down the output digitally to save power or protect your circuit.
Features
High Output Current: Delivers 8A continuously and up to 10A at peak performance.
Flexible Power Supply: Operates on a single supply (+8V to +60V) or dual supplies (±4V to ±30V).
Adjustable Current Limit: Easily set your maximum current using a single external resistor or digital control.
Fully Protected: Built-in thermal shutdown and current overload protection.
Status Indicator: The Enable/Status pin alerts you if the device gets too hot.
Fast Response: High slew rate of 9V/µs for quick signal changes.
Easy Mounting: Comes in an 11-lead power package with a metal tab for easy attachment to heat sinks.
Applications
Valve and Actuator Control: Perfect for industrial machinery.
Servo and Motor Drivers: Used in robotics and precision motion control.
Power Supplies: Ideal for building programmable or lab power supplies.
Audio Amplifiers: High-power output for driving heavy speakers or transducers.
Test Equipment: Useful in automated testing where high current is required.
Technical Parameters
Supply Voltage (Max): 60V (Total)
Continuous Output Current: 8A
Peak Output Current: 10A
Slew Rate: 9 V/µs
Gain Bandwidth: 0.9 MHz
Input Offset Voltage: 1mV (typical)
Operating Temperature: -40°C to +85°C
Package Type: 11-Lead TO-220 (Staggered Leads)
External Links
Google Sites
Report abuse