SLUUCS3 February   2023 LM2105

 

  1.   Abstract
  2.   Trademarks
  3. 1 Introduction
  4. 2 Description
    1. 2.1 Features
    2. 2.2 I/O Description
  5. 3 Electrical Specifications
  6. 4 Test Summary
    1. 4.1 Definitions
    2. 4.2 Equipment
      1. 4.2.1 Power Supply
      2. 4.2.2 Function Generator
      3. 4.2.3 DMM
      4. 4.2.4 Oscilloscope
    3. 4.3 Equipment Setup
      1. 4.3.1 DC Power Supply Settings
      2. 4.3.2 Digital Multimeter Settings
      3. 4.3.3 Two-Channel Function Generator Settings
      4. 4.3.4 Oscilloscope Settings
      5. 4.3.5 Bench Setup Diagram
  7. 5 Power-Up and Power-Down Procedure
    1. 5.1 Power Up
    2. 5.2 Power Down
  8. 6 Operation With External Bootstrap Diode
  9. 7 Typical Performance Waveforms (CL = 1000 pF)
    1. 7.1 Propagation Delays
  10. 8 Schematic
  11. 9 Layout Diagrams
  12. 10Bill of Materials

2 Description

The EVM is developed in such a way that the LM2105 driver performance can be evaluated and compared to data sheet parameters, or externally connected to power devices with provisions for source and sink gate-resistance flexibility. The LM2105 evaluation board uses surface-mount test points allowing connection to INL, INH, GVDD, and BST inputs. A variety of other test points are available for probing the LM2105. The input bias is configured such that the BST-SH high-side bias can be sourced from GVDD, or an external additional bias can be added to provide BST-SH directly. The high- and low-side driver output returns are separated on SH and GND respectively to allow evaluation of the LM2105 SH negative voltage capabilities.