SNVA484B October   2011  – March 2024 LM5113

 

  1.   1
  2.   Description
  3.   IC Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
  6. 2Hardware
    1. 2.1 Powering and Loading Considerations
      1. 2.1.1 Proper Board Connection
      2. 2.1.2 Source Power
      3. 2.1.3 Output Current Derating
      4. 2.1.4 Air Flow
      5. 2.1.5 Quick Start-Up Procedure
  7. 3Implementation Results
    1. 3.1 Performance Characteristics
  8. 448V to 3.3V Conversion
  9. 5Hardware Design Files
    1. 5.1 Evaluation Board Schematic
    2. 5.2 PCB Layouts
    3. 5.3 Bill of Materials (BOM)
  10. 6Additional Information
    1. 6.1 Trademarks
  11. 7Revision History

1.1 Introduction

The specifications of the evaluation board are as follows:

  • Input Operating Voltage: 15V to 60V
  • Output Voltage: 10V
  • Output Current: 10A @ 48V, 7A @ 60V
  • Measured Efficiency at 48V: 93.9% @ 10A
  • Frequency of Operation: 800kHz
  • Line UVLO: 13.8V (Rising) /10.8V (Falling)
  • Board size: 3.00 x 2.83 inches

The printed circuit board (PCB) consists of 2 layers of 2 ounce copper on FR4 material, with a thickness of 0.050 inches.

This document contains the schematic of the evaluation board, Bill of Materials (BOM) and a quick setup procedure. The evaluation board can be reconfigured for different switching frequency, dead time, and the output voltage from the specifications above. An example of 48V to 3.3V conversion is given in Section 4. For more complete information, see the LM5113 5A, 100V Half-Bridge Gate Driver for Enhancement Mode GaN FETs Data Sheet (SNVS725).