PAC1921 datasheet(5/56 Pages) MICROCHIP

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PAC1921

HIGH-SIDE CURRENT/POWER SENSOR

EVALUATION BOARD USER’S GUIDE

 2015 Microchip Technology Inc.

DS50002376A-page 5

Table of Contents

Preface ........................................................................................................................... 7

Introduction............................................................................................................ 7

Document Layout .................................................................................................. 7

Conventions Used in this Guide ............................................................................ 8

Warranty Registration............................................................................................ 8

Recommended Reading........................................................................................ 9

The Microchip Web Site ........................................................................................ 9

Customer Support ................................................................................................. 9

Document Revision History ................................................................................... 9

Chapter 1. Product Overview

1.1 Introduction ................................................................................................... 11

1.2 PAC1921 Evaluation System ........................................................................ 11

1.3 What is the PAC1921 High-Side Current/Power Sensor Evaluation Board? ..... 12

1.3.1 Board Layout ............................................................................................. 12

1.4 What the PAC1921 High-Side Current/Power Sensor Evaluation

Board Kit Contains................................................................................... 13

Chapter 2. Installation and Operation

2.1 Getting Started .............................................................................................. 15

2.1.1 System Requirements ................................................................................ 15

2.2 Installing the Evaluation Board Software....................................................... 15

2.3 Microchip USB Bridge Installation ................................................................. 19

Chapter 3. Hardware Description

3.1 Introduction.................................................................................................... 21

3.1.1 Power Source............................................................................................. 21

3.2 USB-to-SMBus Bridge................................................................................... 21

3.2.1 Direct SMBus Connect Option ................................................................... 21

3.3 Operating Mode............................................................................................. 22

3.3.1 SMBus Mode.............................................................................................. 22

3.4 LED Indicators............................................................................................... 22

3.5 Jumper Settings ............................................................................................ 23

3.6 Test Points .................................................................................................... 24

3.7 Demo Mode Setup and Operation................................................................. 25

3.8 Sys Mode Setup and Operation .................................................................... 25

3.8.1 Jumper Positions ........................................................................................ 25

3.8.2 Load Connection ........................................................................................ 25

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