Texas Instruments LM2105EVM User Manual

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User's Guide
Using the LM2105EVM
This user's guide describes the characteristics, operation, and use of the LM2105 Evaluation Module (EVM). A
complete schematic diagram, PCB layouts, and BOM are included in this document.
1 Introduction.............................................................................................................................................................................2
2 Description..............................................................................................................................................................................
2.1 Features.............................................................................................................................................................................
2.2 I/O Description...................................................................................................................................................................
3 Electrical Specifications........................................................................................................................................................
4 Test Summary.........................................................................................................................................................................
4.1 Definitions..........................................................................................................................................................................
4.2 Equipment..........................................................................................................................................................................
4.3 Equipment Setup................................................................................................................................................................4
5 Power-Up and Power-Down Procedure................................................................................................................................
5.1 Power Up...........................................................................................................................................................................
5.2 Power Down.......................................................................................................................................................................6
6 Operation With External Bootstrap Diode............................................................................................................................
7 Typical Performance Waveforms (C
7.1 Propagation Delays............................................................................................................................................................8
8 Schematic................................................................................................................................................................................9
9 Layout Diagrams...................................................................................................................................................................10
10 Bill of Materials...................................................................................................................................................................
Figure 4-1. Bench Setup Diagram and
Figure 5-1. Example Input and Output Waveforms (green and magenta are PWM inputs, blue and dark blue are driver
outputs)....................................................................................................................................................................................
Figure 7-1. INH and GH Propagation Delay Waveforms (green is INH, blue is GH)...................................................................
Figure 7-2. INL and GL Propagation Delay Waveforms (green is GL, dark blue is GL)..............................................................
Figure 8-1. LM2105 Schematic....................................................................................................................................................9
Figure 9-1. Top Overlay.............................................................................................................................................................
Figure 9-2. Top Layer.................................................................................................................................................................10
Figure 9-3. Bottom Layer...........................................................................................................................................................
Figure 9-4. Bottom Overlay........................................................................................................................................................
Table 2-1. Connection Descriptions.............................................................................................................................................
Table 4-1. Two-Channel Function Generator
Table 4-2. Oscilloscope Settings..................................................................................................................................................4
Table 10-1. LM2105 Bill of Materials..........................................................................................................................................12
SLUUCS3 - FEBRUARY 2023
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ABSTRACT

Table of Contents

= 1000 pF).................................................................................................................
L
List of Figures
Configuration..................................................................................................................5
List of Tables
Settings.................................................................................................................4
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Using the LM2105EVM 1