High-Voltage, High-Current Op Amp, Excellent Output Swing
Product details
Parameters
Package | Pins | Size
Features
- HIGH OUTPUT CURRENT:
8A Continuous
10A Peak - WIDE POWER-SUPPLY RANGE:
Single Supply: +8V to +60V
Dual Supply: ±4V to ±30V - WIDE OUTPUT VOLTAGE SWING
- FULLY PROTECTED:
Thermal Shutdown
Adjustable Current Limit - OUTPUT DISABLE CONTROL
- THERMAL SHUTDOWN INDICATOR
- HIGH SLEW RATE: 9V/µs
- CONTROL REFERENCE PIN
- 11-LEAD POWER PACKAGE
- APPLICATIONS
- VALVE, ACTUATOR DRIVER
- SYNCHRO, SERVO DRIVER
- POWER SUPPLIES
- TEST EQUIPMENT
- TRANSDUCER EXCITATION
- AUDIO POWER AMPLIFIER
All trademarks are the property of their respective owners.
Description
The OPA549 is a low-cost, high-voltage/high-current operational amplifier ideal for driving a wide variety of loads. This laser-trimmed monolithic integrated circuit provides excellent low-level signal accuracy and high output voltage and current.
The OPA549 operates from either single or dual supplies for design flexibility. The input common-mode range extends below the negative supply.
The OPA549 is internally protected against over-temperature conditions and current overloads. In addition, the OPA549 provides an accurate, user-selected current limit. Unlike other designs which use a "power" resistor in series with the output current path, the OPA549 senses the load indirectly. This allows the current limit to be adjusted from 0A to 10A with a resistor/potentiometer, or controlled digitally with a voltage-out or current-out Digital-to-Analog Converter (DAC).
The Enable/Status (E/S) pin provides two functions. It can be monitored to determine if the device is in thermal shutdown, and it can be forced low to disable the output stage and effectively disconnect the load.
The OPA549 is available in an 11-lead power package. Its copper tab allows easy mounting to a heat sink for excellent thermal performance. Operation is specified over the extended industrial temperature range, 40°C to +85°C.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | High-Voltage, High-Current Operational Amplifier datasheet (Rev. E) | Oct. 07, 2005 |
E-book | The Signal e-book: A compendium of blog posts on op amp design topics | Mar. 28, 2017 | |
Application note | MTTF, Failrate, Reliability, and Life Testing | Oct. 04, 2000 | |
Application note | DC MOTOR SPEED CONTROLLER: Control a DC Motor without Tachometer Feedback | Sep. 27, 2000 | |
Application note | Power Amplifier Stress and Power Handling Limitations | Sep. 27, 2000 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Features
- Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
- Noise calculations
- Common unit translation
- Solves common amplifier circuit design problems
- Gain selections using standard resistors
- Filter configurations
- Total noise for common amplifier configurations
- (...)
Reference designs
Design files
-
download TIPD138 Gerber.zip (2729KB) -
download TIPD138 BOM.pdf (196KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
Power Package (KVC) | 11 | View options |
TO-220 (KV) | 11 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
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