SBOS153B September   2000  – January 2016 OPA541

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Current Limit
      2. 8.1.2 Heat Sinking
      3. 8.1.3 Safe Operating Area
      4. 8.1.4 Replacing Hybrid Power Amplifiers
    2. 8.2 Typical Applications
      1. 8.2.1 Clamping Output for EMF-Generating Loads
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Power Supply Requirements
          2. 8.2.1.2.2 Current Limit and SOA (Safe Operating Area)
          3. 8.2.1.2.3 Heat Sinking
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Paralleled Operation, Extended SOA
        1. 8.2.2.1 Design Requirements
      3. 8.2.3 Programmable Voltage Source
        1. 8.2.3.1 Design Requirements
      4. 8.2.4 16-Bit Programmable Voltage Source
        1. 8.2.4.1 Design Requirements
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

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1 Features

  • Power Supplies to ±40 V
  • Output Current to 10-A Peak
  • Programmable Current Limit
  • Industry-Standard Pinout
  • FET Input
  • TO-3 and Low-Cost Power Plastic Packages

2 Applications

  • Motor Drivers
  • Servo Amplifiers
  • Synchro Excitation
  • Audio Amplifiers
  • Programmable Power Supplies

3 Description

The OPA541 device is a power-operational amplifier capable of operation from power supplies up to
±40 V, and delivering continuous output currents up to 5 A. Internal current-limit circuitry can be user-programmed with a single external resistor, protecting the amplifier and load from fault conditions. The OPA541 devices fabricated are using a proprietary bipolar and FET process.

The OPA541 uses a single current-limit resistor to set both the positive and negative current limits. Applications currently using hybrid power amplifiers requiring two current-limit resistors do need not to be modified.

The OPA541 is available in an 11-pin power plastic package and an industry-standard 8-pin TO-3 hermetic package. The power plastic pachage has a copper-lead frame to maximize heat transfer. The TO-3 package is isolated from all circuitry, allowing it to be mounted directly to a heat sink without special insulators.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
OPA541 TO-220 (11) 10.70 mm × 20.02 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

OPA541 sbos153_sch.gif