OPA549 High-Voltage, High-Current Op Amp, Excellent Output Swing | TI.com

OPA549 (ACTIVE)

High-Voltage, High-Current Op Amp, Excellent Output Swing

High-Voltage, High-Current Op Amp, Excellent Output Swing - OPA549
 

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.

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

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Parametrics Compare all products in Power op amps

 
Number of Channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
Output Current (Typ) (mA)
GBW (Typ) (MHz)
Slew Rate (Typ) (V/us)
Vos (Offset Voltage @ 25C) (Max) (mV)
Offset Drift (Typ) (uV/C)
Iq per channel (Typ) (mA)
Features
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Input Bias Current (Max) (pA)
CMRR (Typ) (dB)
Rail-to-Rail
Architecture
OPA549 OPA547 OPA548
1     1     1    
8     8     8    
60     60     60    
8000     500     3000    
0.9     1     1    
9     6     10    
5     5     10    
20     25     30    
26     10     17    
Adj Current Limit
Shutdown    
Adj Current Limit
Shutdown    
Adj Current Limit
Shutdown    
Catalog     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 85    
Power Package | 11
TO-220 | 11    
DDPAK/TO-263 | 7
TO-220 | 7    
DDPAK/TO-263 | 7
TO-220 | 7    
11Power Package: 90 mm2: 4.5 x 20.02 (Power Package | 11)
See datasheet (TO-220)    
7DDPAK/TO-263: 154 mm2: 15.24 x 10.1 (DDPAK/TO-263 | 7)
See datasheet (TO-220)    
7DDPAK/TO-263: 154 mm2: 15.24 x 10.1 (DDPAK/TO-263 | 7)
See datasheet (TO-220)    
500000     500000     500000    
95     95     95    
In to V-     In to V-     In to V-    
Bipolar     Bipolar     Bipolar    

WEBENCH® Designer OPA549

Amplifier Topology
 Non-inverting
 Inverting
Desired Power Supply Voltage
Positive Supply (Vcc):  V
Negative Supply (Vee):  V
Allowed Power Supply(Vcc-Vee) = 8.0 to 60.0 V
Desired Input and Output Requirements
  Min Max
Vin  V  V
Vout  V  V
Minimum Temperature = -40.0 °C
Maximum Temperature = 85.0 °C