PAC1921 datasheet(6/56 Pages) MICROCHIP

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PAC1921 High-Side Current/Power Sensor Evaluation Board User’s Guide

DS50002376A-page 6

 2015 Microchip Technology Inc.

Chapter 4. Software Description

4.1 Overview ....................................................................................................... 27

4.1.1 Tips for Using the Evaluation Board GUI ...................................................28

4.2 Interface Description and Operation.............................................................. 29

4.2.1 Panel Control Section .................................................................................29

4.2.2 Main Configuration Panel............................................................................31

4.2.3 Overflow Status Panel ................................................................................32

4.2.4 Rsense Panel ...............................................................................................32

4.2.5 Panel and Integration Control Panel ...........................................................32

4.2.6 EVB Demo Configuration Panel..................................................................33

4.3 Tab Descriptions ........................................................................................... 34

4.3.1 Vbus & Vsense Tab ....................................................................................34

4.3.2 Vbus, Vsense and Vpower Tabs.................................................................35

4.3.3 Calculations/File IO Tab..............................................................................36

4.3.4 Integration Table Tab..................................................................................38

4.4 Evaluation Board Examples .......................................................................... 39

4.4.1 Power Pin-Controlled Integration Example .................................................39

4.4.2 Power Free-Run Integration Example.........................................................42

4.5 Troubleshooting............................................................................................. 45

4.5.1 GUI Controls Unresponsive After Installation .............................................45

4.5.2 GUI Freezes................................................................................................45

Appendix A. Schematic and Layouts

A.1 Introduction ................................................................................................... 47

A.2 Board – PAC1921 Current Shunt and Power Monitor Schematic................. 48

A.3 Board – USB Bridge and Sig Gen Schematic............................................... 49

A.4 Board – Top Silk ........................................................................................... 50

A.5 Board – Top Copper and Silk........................................................................ 50

A.6 Board – Top Copper ..................................................................................... 51

A.7 Board – Bottom Copper ................................................................................ 51

A.8 Board – Bottom Copper and Silk .................................................................. 52

A.9 Board – Bottom Silk ...................................................................................... 52

Appendix B. Bill of Materials (BOM) ...........................................................................53

Worldwide Sales and Service .....................................................................................56

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