OPA547 High-Voltage, High-Current Op Amp with shutdown capability | TI.com

OPA547 (ACTIVE)

High-Voltage, High-Current Op Amp with shutdown capability

 

Description

The OPA547 is a low-cost, high-voltage/high-current operational amplifier ideal for driving a wide variety of loads. A laser-trimmed monolithic integrated circuit provides excellent low-level signal accuracy and high output voltage and current.

The OPA547 operates from either single or dual supplies for design flexibility. In single-supply operation, the input common-mode range extends below ground.

The OPA547 is internally protected against over-temperature conditions and current overloads. In addition, the OPA547 was designed to provide an accurate, user-selected current limit. Unlike other designs which use a "power" resistor in series with the output current path, the OPA547 senses the load indirectly. This allows the current limit to be adjusted from 0mA to 750mA with a 0 to 150 µA control signal. This is easily done with a resistor/potentiometer or controlled 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 OPA547 is in thermal shutdown.

The OPA547 is available in an industry-standard 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. It is specified for operation over the extended industrial temperature range, –40°C to +85°C.

Features

  • WIDE SUPPLY RANGE
      Single Supply: +8V to +60V
      Dual Supply: ±4V to ±30V
  • HIGH OUTPUT CURRENT:
      500mA Continuous
  • WIDE OUTPUT VOLTAGE SWING
  • FULLY PROTECTED:
      Thermal Shutdown
      Adjustable Current Limit
  • OUTPUT DISABLE CONTROL
  • THERMAL SHUTDOWN INDICATOR
  • HIGH SLEW RATE: 6V/µs
  • LOW QUIESCENT CURRENT
  • PACKAGES:
      7-Lead TO-220, Zip and Straight Leads
      7-Lead DDPAK Surface-Mount
  • APPLICATIONS
    • VALVE, ACTUATOR DRIVERS
    • SYNCHRO, SERVO DRIVERS
    • POWER SUPPLIES
    • TEST EQUIPMENT
    • TRANSDUCER EXCITATION
    • AUDIO AMPLIFIERS

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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 @ 25 C) (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
OPA547 OPA548 OPA549
1     1     1    
8     8     8    
60     60     60    
500     3000     8000    
1     1     0.9    
6     10     9    
5     10     5    
25     30     20    
10     17     26    
Adj Current Limit
Shutdown    
Adj Current Limit
Shutdown    
Adj Current Limit
Shutdown    
Catalog     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 85    
DDPAK/TO-263 | 7
TO-220 | 7    
DDPAK/TO-263 | 7
TO-220 | 7    
Power Package | 11
TO-220 | 11    
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)    
11Power Package: 90 mm2: 4.5 x 20.02 (Power Package | 11)
See datasheet (TO-220)    
500000     500000     500000    
95     95     95    
In to V-     In to V-     In to V-    
Bipolar     Bipolar     Bipolar    

Design tool

WEBENCH® Designer OPA547

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