SNVS215D April   2003  – November 2015 LM5030

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
      1. 7.3.1 High-Voltage Start-Up Regulator
      2. 7.3.2 Error Amplifier
      3. 7.3.3 PWM Comparator
      4. 7.3.4 Current Limit and Current Sense
      5. 7.3.5 Oscillator, Shutdown and Sync Capability
      6. 7.3.6 Slope Compensation
      7. 7.3.7 Soft Start and Shutdown
      8. 7.3.8 OUT1, OUT2, and Time Delay
      9. 7.3.9 Thermal Protection
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 VCC
        2. 8.2.2.2 Current Sense
        3. 8.2.2.3 Shutdown
        4. 8.2.2.4 External Sync
      3. 8.2.3 Application Curves
  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 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

9 Power Supply Recommendations

The LM5030 can be used as a controller for push-pull, full bridge or half bridge power supplies. Typical applications are for input voltages up to 100 V and output power around 30 W with switching frequency up to
1 MHz.

Care should be taken that components with the correct current rating are chosen. This includes magnetic components, power MOSFETs and diodes, connectors and wire sizes. Input and output capacitors should have the correct ripple current rating.

The VCC pin requires a local decoupling capacitor that is connected to GND. This capacitor ensures stability of the internal regulator from the VIN pin. The decoupling capacitor also provides the current pulses to drive the gates of the external MOSFETs through the driver output pins.

Place the decoupling capacitor close to the VCC and GND pins and track it directly to these pins.